Yolande Tra
2012-Jul-18 13:47 UTC
[R] loop searching the id corresponding to the given index (timestamp)
Hello,
I have the following loop for two data sets: diveData_2008 and
diveData_2009. It uses two other data: diveCond_all and fishTable. The
problem is at the point to identify the dive_id for the given index (index
is timestamp). It keeps on saying
for the1st loop
Error in fishReport$dive_id[i] <- dive_id : replacement has length zero
for the 2nd loop
Error in fishReport$dive_id[i + j] <- dive_id :
replacement has length zero
That is where the only problem resides.
Here is the code and below are the first 15 lines of data
N <- dim(diveData_2009)[1] + dim(diveData_2008)[1]
fishReport <- data.frame(matrix(0, nrow=N, ncol=11))
names(fishReport) <- c("dive_id", "site",
"section", "level", "transect",
"depth", "species", "count", "size")
for(i in 1:dim(diveData_2008)[1]){
# Which dive is this observation from
thisIndex <- as.character(index(diveData_2008[i,]))
dive_id <-
diveCond_all$dive_id[diveCond_all$timestamp==thisIndex]
cat(dive_id, thisIndex, "\n")
# Store the pertinent data in the fish report data.frame
fishReport$dive_id[i] <- dive_id
fishReport$site[i] <-
diveData_2008[i,"site"]
fishReport$level[i] <-
diveData_2008[i,"level"]
fishReport$section[i] <- 0
fishReport$transect[i] <-
as.numeric(diveData_2008[i,"TRANSECT"])
fishReport$depth[i] <-
as.numeric(diveData_2008[i,"depth"])
fishReport$species[i] <-
fishTable$name_2009[fishTable$name_2008==as.character(diveData_2008[i,"species"])
][1]
fishReport$count[i] <-
as.numeric(diveData_2008[i,"count"])
fishReport$size[i] <-
as.numeric(diveData_2008[i,"size"])
fishReport$visibility[i] <-
as.numeric(diveData_2008[i,"VIS_M"])
fishReport$swell[i]
<-as.numeric(diveData_2008[i,"swell_URSKI"])
}
j<-i
## The 2009 dives
for(i in i+1:dim(diveData_2009)[1]){
thisIndex <- as.character(index(diveData_2009[i,]))
dive_id <-
diveCond_all$dive_id[diveCond_all$timestamp==thisIndex]
cat(dive_id, thisIndex, "\n")
fishReport$dive_id[i+j] <- dive_id
fishReport$site[i+j] <-
"Hopkins"
fishReport$level[i+j] <-
diveData_2009[i,"level"]
fishReport$transect[i+j] <-
as.numeric(diveData_2009[i,"TRANSECT"])
fishReport$depth[i+j] <-
as.numeric(diveData_2009[i,"depth"])
fishReport$species[i+j] <-
diveData_2009[i,"species"]
fishReport$count[i+j] <-
as.numeric(diveData_2008[i,"count"])
fishReport$size[i+j] <-
as.numeric(diveData_2009[i,"size"])
fishReport$visibility[i+j] <-
as.numeric(diveData_2008[i,"VIS_M"])
}
diveData_2008 (first 15 lines)
structure(c(" 1", " 1", " 1", " 1",
" 1", " 1", " 1", " 1", " 1",
" 2", " 2", " 2", " 2", " 2",
" 2", "8/6/2008", "8/6/2008",
"8/6/2008",
"8/6/2008", "8/6/2008", "8/6/2008",
"8/6/2008", "8/6/2008", "8/6/2008",
"8/6/2008", "8/6/2008", "8/6/2008",
"8/6/2008", "8/6/2008", "8/6/2008",
"8:49", "8:49", "8:49", "8:49",
"8:49", "8:49", "8:49", "8:49",
"8:49", "10:03", "10:03", "10:03",
"10:03", "10:03", "10:03",
"S. OYT", "S. atrovirens", "S. atrovirens",
"S. atrovirens",
"O. pictus", "C. nicholsii", "C. nicholsii",
"D. vacca", "No organisms",
"S. OYT", "S. atrovirens", "S. atrovirens",
"S. atrovirens",
"S. chrysomelas", "O. pictus", " 15", "
1", " 1", " 1",
" 1", " 1", " 1", " 1", "
1", " 1", " 1", " 1",
" 1", " 1", " 1", " 6",
"23", "27", "29", " 8", " 8",
" 9",
"18", NA, " 6", "23", "28",
"35", "32", " 8", "Hopkins",
"Hopkins",
"Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
"Hopkins", "15", "15", "15",
"15", "15", "15", "15", "15",
"15",
"10", "10", "10", "10", "10",
"10", "B", "B", "B", "B",
"B",
"B", "B", "B", "M", "B",
"B", "B", "B", "B", "B",
" 1", " 1",
" 1", " 1", " 1", " 1", " 1",
" 1", " 1", " 2", " 2", " 2",
" 2",
" 2", " 2", " 3.5", " 3.5", "
3.5", " 3.5", " 3.5", " 3.5", "
3.5",
" 3.5", " 3.5", " 3.5", " 3.5", "
3.5", " 3.5", " 3.5", " 3.5",
"13.9", "13.9", "13.9", "13.9",
"13.9", "13.9", "13.9", "13.9",
"13.9", "13.9", "13.9", "13.9",
"13.9", "13.9", "13.9", "1.0686708",
"1.0686708", "1.0686708", "1.0686708",
"1.0686708", "1.0686708",
"1.0686708", "1.0686708", "1.0686708",
"1.1111950", "1.1111950",
"1.1111950", "1.1111950", "1.1111950",
"1.1111950"), .indexCLASS c("POSIXct",
"POSIXt"), tclass = c("POSIXct", "POSIXt"),
.indexTZ = "", tzone = "",
class = c("xts",
"zoo"), index = structure(c(1218026940, 1218026940, 1218026940,
1218026940, 1218026940, 1218026940, 1218026940, 1218026940, 1218026940,
1218031380, 1218031380, 1218031380, 1218031380, 1218031380, 1218031380
), tzone = "", tclass = c("POSIXct", "POSIXt")),
.Dim = c(15L,
13L), .Dimnames = list(NULL, c("dive_id", "date",
"time", "species",
"count", "size", "site", "depth",
"level", "TRANSECT", "VIS_M",
"TEMP_C", "swell_URSKI")))
diveData_2009 (first 15 lines)
structure(c("62", "62", "62", "62",
"62", "62", "62", "62", "62",
"62", "62", "62", "62", "62",
"62", "10/12/2009", "10/12/2009",
"10/12/2009", "10/12/2009", "10/12/2009",
"10/12/2009", "10/12/2009",
"10/12/2009", "10/12/2009", "10/12/2009",
"10/12/2009", "10/12/2009",
"10/12/2009", "10/12/2009", "10/12/2009",
"12:44", "12:44", "12:44",
"12:44", "12:44", "12:44", "12:44",
"12:44", "12:44", "12:44",
"12:44", "12:44", "12:44", "12:44",
"12:44", "E. lateralis",
"E. lateralis", "E. lateralis", "E. lateralis",
"O. pictus",
"S. OYT", "S. OYT", "S. atrovirens", "S.
atrovirens", "S. atrovirens",
"S. atrovirens", "S. carnatus", "S. carnatus",
"S. carnatus",
"S. carnatus", " 2", " 1", " 1", "
1", " 1", " 3", " 1", " 3",
" 2", " 1", " 1", " 1", " 2",
" 1", " 1", "15", "22", "25",
"27",
" 4", " 6", " 8", " 5", "20",
"23", "25", " 5", "20", "26",
"30",
"Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins", "15",
"15", "15", "15", "15",
"15", "15", "15", "15", "15",
"15", "15", "15", "15", "15",
"B",
"B", "B", "B", "B", "B",
"B", "B", "B", "B", "B",
"B", "B", "B",
"B", "1", "1", "1", "1",
"1", "1", "1", "1", "1",
"1", "1", "1",
"1", "1", "1", "4.0000",
"4.0000", "4.0000", "4.0000", "4.0000",
"4.0000", "4.0000", "4.0000", "4.0000",
"4.0000", "4.0000", "4.0000",
"4.0000", "4.0000", "4.0000"), class =
c("xts", "zoo"), .indexCLASS c("POSIXct",
"POSIXt"), tclass = c("POSIXct", "POSIXt"),
.indexTZ = "", tzone = "",
index = structure(c(1255365840,
1255365840, 1255365840, 1255365840, 1255365840, 1255365840, 1255365840,
1255365840, 1255365840, 1255365840, 1255365840, 1255365840, 1255365840,
1255365840, 1255365840), tzone = "", tclass = c("POSIXct",
"POSIXt"
)), .Dim = c(15L, 11L), .Dimnames = list(NULL, c("dive_id",
"date",
"time", "species", "count", "size",
"site", "depth", "level",
"TRANSECT", "VIS_M")))
diveCond_all (first 15 lines)
structure(list(dive_id = structure(1:15, .Label = c(" 1", "
2",
" 3", " 4", " 5", " 6", " 7",
" 8", " 9", "10", "11", "12",
"13",
"14", "15", "16", "17", "18",
"19", "20", "21", "22", "23",
"24",
"25", "26", "27", "28", "29",
"30", "31", "32", "33", "34",
"35",
"36", "37", "38", "39", "40",
"41", "42", "43", "44", "45",
"46",
"47", "48", "49", "50", "51",
"52", "53", "54", "55", "56",
"57",
"58", "59", "60", "61", "62",
"63", "64", "65", "66", "67",
"68",
"69", "70", "71", "72", "73",
"74", "75", "76", "77", "78",
"79",
"80", "81", "82", "83", "84",
"85", "86", "87", "88", "89",
"90",
"91", "92", "93", "94", "95",
"96", "97"), class = "factor"),
timestamp = structure(c(1218026940, 1218031380, 1218032700,
1218202920, 1218207180, 1218213720, 1218478320, 1218478320,
1218463800, 1218463800, 1218466860, 1218467760, 1218634260,
1218638100, 1218639720), class = c("POSIXct", "POSIXt"),
tzone = ""),
visability = structure(c(5L, 5L, NA, 6L, NA, NA, NA, NA,
NA, NA, 11L, 10L, NA, NA, NA), .Label = c(" 1.5", "
2.0",
" 2.5", " 3.0", " 3.5", " 4.0",
" 5.0", " 5.5", " 6.0", " 6.5",
" 7.0", " 7.5", " 8.0", " 9.0",
"10.0", "12.0", "13.0", "3.0000",
"4.0000", "5.0000", "5.4864",
"6.0000", "6.0960"), class = "factor"),
r_wvht = c(0.91, 1, 1.02, 0.76, 0.78, 0.78, 1.35, 1.35, 1.57,
1.57, 1.53, 1.53, 1.51, 1.53, 1.69), r_dpd = c(14.29, 4.35,
4.35, 13.33, 13.33, 8.33, 8.33, 8.33, 8.33, 8.33, 8.33, 8.33,
9.09, 9.09, 8.33), r_apt = c(4.59, 4.45, 4.26, 5.87, 6.27,
6.58, 6.7, 6.7, 6.67, 6.67, 6.66, 6.5, 6.99, 6.95, 7.19),
r_mwd = c(229, 291, 297, 226, 228, 260, 287, 287, 291, 291,
290, 290, 294, 292, 298), r_wtmp = c(12.6, 12.6, 12.5, 12.7,
12.6, 12.6, 12.8, 12.8, 12.7, 12.7, 12.7, 12.7, 13.4, 13.4,
13.5), l_salinity = c("33.513", "33.513",
"33.513", "33.513",
"33.513", "33.513", "33.513",
"33.513", "33.513", "33.513",
"33.513", "33.513", "33.513",
"33.513", "33.513"), l_o2 = c("0",
"0", "0", "0", "0", "0",
"0", "0", "0", "0", "0",
"0", "0",
"0", "0"), l_hs = c("54.926",
"54.926", "54.926", "54.926",
"54.926", "54.926", "54.926",
"54.926", "54.926", "54.926",
"54.926", "54.926", "54.926",
"54.926", "54.926"), l_tp = c("340.0",
"340.0", "340.0", "340.0", "340.0",
"340.0", "340.0", "340.0",
"340.0", "340.0", "340.0", "340.0",
"340.0", "340.0", "340.0"
), l_wdir = c("1.600", "1.600", "1.600",
"1.600", "1.600",
"1.600", "1.600", "1.600", "1.600",
"1.600", "1.600", "1.600",
"1.600", "1.600", "1.600"), l_along =
c(NA_real_, NA_real_,
NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_,
NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_,
NA_real_), l_cross = c(NA_real_, NA_real_, NA_real_, NA_real_,
NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_,
NA_real_, NA_real_, NA_real_, NA_real_, NA_real_), l_mab = c(".",
".", ".", ".", ".", ".",
".", ".", ".", ".", ".",
".", ".",
".", "."), l_depth = c(" 9.090", "
9.090", " 9.090", " 9.090",
" 9.090", " 9.090", " 9.090", "
9.090", " 9.090", " 9.090",
" 9.090", " 9.090", " 9.090", "
9.090", " 9.090"), l_temp1 c("11.288",
"11.288", "11.288", "11.288",
"11.288", "11.288", "11.288",
"11.288", "11.288", "11.288",
"11.288", "11.288", "11.288",
"11.288", "11.288"), l_temp7 = c("13.675",
"13.675", "13.675",
"13.675", "13.675", "13.675",
"13.675", "13.675", "13.675",
"13.675", "13.675", "13.675",
"13.675", "13.675", "13.675"
), l_temp14 = c("13.743", "13.743", "13.743",
"13.743", "13.743",
"13.743", "13.743", "13.743",
"13.743", "13.743", "13.743",
"13.743", "13.743", "13.743",
"13.743")), .Names = c("dive_id",
"timestamp", "visability", "r_wvht",
"r_dpd", "r_apt", "r_mwd",
"r_wtmp", "l_salinity", "l_o2", "l_hs",
"l_tp", "l_wdir", "l_along",
"l_cross", "l_mab", "l_depth",
"l_temp1", "l_temp7", "l_temp14"
), row.names = c(" 1", " 2", " 3", " 4",
" 5", " 6", " 7", " 8",
" 9", "10", "11", "12", "13",
"14", "15"), class = "data.frame")
fishTable (first 15 lines)
structure(list(name_2009 = c("E. lateralis", "O. pictus",
"S. atrovirens",
"S. carnatus", "S. caurinus", "S. chrysomelas",
"S. miniatus",
"S. mystinus", "S. OYT", "S. pinniger", "S.
serriceps", "E. jacksoni",
"B. frenatus", "H. decagrammus", "S.
rastrelliger"), name_2008 = c("ELAT",
"OPIC", "SATR", "SCAR", "SCAU",
"SCHR", "SMIN", "SMYS", "OYT",
"SPIN", "STRE", "EJAC", "BFRE",
"HDEC", "SRAS"), description = c("Striped
Surfperch,",
"Painted Greenling,", "kelp rockfish,", "gopher
rockfish,", "copper
rockfish,",
"black and yellow rockfish,", "vermilion rockfish,",
"blue rockfish,",
"OYT (Olive/Yellowtail) Rockfish, This species group includes Sebastes
serranoides and Sebastes flavidus (Olive/Yellowtail)",
"canary rockfish,", "treefish,", "Black
Surfperch,", "Kelp Surfperch,",
"Kelp Greenling,", "grass rockfish,")), .Names =
c("name_2009",
"name_2008", "description"), row.names = c(NA, 15L), class =
"data.frame")
Thank you for your insight and help,
Yolande
[[alternative HTML version deleted]]
Jean V Adams
2012-Jul-18 17:15 UTC
[R] loop searching the id corresponding to the given index (timestamp)
What is the function index() that you use in this line of code? thisIndex <- as.character(index(diveData_2008[i,])) Is it from some package? Or a function you wrote yourself? I'm trying to run the code you submitted, but I don't have a function called index(). Jean Yolande Tra <yolande.tra@gmail.com> wrote on 07/18/2012 08:47:04 AM:> Hello, > > I have the following loop for two data sets: diveData_2008 and > diveData_2009. It uses two other data: diveCond_all and fishTable. The > problem is at the point to identify the dive_id for the given index(index> is timestamp). It keeps on saying > for the1st loop > Error in fishReport$dive_id[i] <- dive_id : replacement has length zero > for the 2nd loop > Error in fishReport$dive_id[i + j] <- dive_id : > replacement has length zero > > That is where the only problem resides. > Here is the code and below are the first 15 lines of data > > N <- dim(diveData_2009)[1] + dim(diveData_2008)[1] > fishReport <- data.frame(matrix(0, nrow=N, ncol=11)) > names(fishReport) <- c("dive_id", "site", "section", "level","transect",> "depth", "species", "count", "size") > for(i in 1:dim(diveData_2008)[1]){ > # Which dive is this observation from > thisIndex <- as.character(index(diveData_2008[i,])) > dive_id <- > diveCond_all$dive_id[diveCond_all$timestamp==thisIndex] > cat(dive_id, thisIndex, "\n") > # Store the pertinent data in the fish report data.frame > fishReport$dive_id[i] <- dive_id > fishReport$site[i] <- > diveData_2008[i,"site"] > fishReport$level[i] <- > diveData_2008[i,"level"] > fishReport$section[i] <- 0 > fishReport$transect[i] <- > as.numeric(diveData_2008[i,"TRANSECT"]) > fishReport$depth[i] <- > as.numeric(diveData_2008[i,"depth"]) > fishReport$species[i] <- > fishTable$name_2009[fishTable$name_2008==as.character(diveData_2008 > [i,"species"]) > ][1] > fishReport$count[i] <- > as.numeric(diveData_2008[i,"count"]) > fishReport$size[i] <- > as.numeric(diveData_2008[i,"size"]) > fishReport$visibility[i] <- > as.numeric(diveData_2008[i,"VIS_M"]) > fishReport$swell[i] <-as.numeric(diveData_2008[i,"swell_URSKI"]) > } > j<-i > ## The 2009 dives > for(i in i+1:dim(diveData_2009)[1]){ > thisIndex <- as.character(index(diveData_2009[i,])) > dive_id <- > diveCond_all$dive_id[diveCond_all$timestamp==thisIndex] > cat(dive_id, thisIndex, "\n") > fishReport$dive_id[i+j] <- dive_id > fishReport$site[i+j] <-"Hopkins"> fishReport$level[i+j] <- > diveData_2009[i,"level"] > fishReport$transect[i+j] <- > as.numeric(diveData_2009[i,"TRANSECT"]) > fishReport$depth[i+j] <- > as.numeric(diveData_2009[i,"depth"]) > fishReport$species[i+j] <- > diveData_2009[i,"species"] > fishReport$count[i+j] <- > as.numeric(diveData_2008[i,"count"]) > fishReport$size[i+j] <- > as.numeric(diveData_2009[i,"size"]) > fishReport$visibility[i+j] <- > as.numeric(diveData_2008[i,"VIS_M"]) > } > > > diveData_2008 (first 15 lines) > structure(c(" 1", " 1", " 1", " 1", " 1", " 1", " 1", " 1", " 1", > " 2", " 2", " 2", " 2", " 2", " 2", "8/6/2008", "8/6/2008", "8/6/2008", > "8/6/2008", "8/6/2008", "8/6/2008", "8/6/2008", "8/6/2008", "8/6/2008", > "8/6/2008", "8/6/2008", "8/6/2008", "8/6/2008", "8/6/2008", "8/6/2008", > "8:49", "8:49", "8:49", "8:49", "8:49", "8:49", "8:49", "8:49", > "8:49", "10:03", "10:03", "10:03", "10:03", "10:03", "10:03", > "S. OYT", "S. atrovirens", "S. atrovirens", "S. atrovirens", > "O. pictus", "C. nicholsii", "C. nicholsii", "D. vacca", "No organisms", > "S. OYT", "S. atrovirens", "S. atrovirens", "S. atrovirens", > "S. chrysomelas", "O. pictus", " 15", " 1", " 1", " 1", > " 1", " 1", " 1", " 1", " 1", " 1", " 1", " 1", > " 1", " 1", " 1", " 6", "23", "27", "29", " 8", " 8", " 9", > "18", NA, " 6", "23", "28", "35", "32", " 8", "Hopkins", "Hopkins", > "Hopkins", "Hopkins", "Hopkins", "Hopkins", "Hopkins", "Hopkins", > "Hopkins", "Hopkins", "Hopkins", "Hopkins", "Hopkins", "Hopkins", > "Hopkins", "15", "15", "15", "15", "15", "15", "15", "15", "15", > "10", "10", "10", "10", "10", "10", "B", "B", "B", "B", "B", > "B", "B", "B", "M", "B", "B", "B", "B", "B", "B", " 1", " 1", > " 1", " 1", " 1", " 1", " 1", " 1", " 1", " 2", " 2", " 2", " 2", > " 2", " 2", " 3.5", " 3.5", " 3.5", " 3.5", " 3.5", " 3.5", " 3.5", > " 3.5", " 3.5", " 3.5", " 3.5", " 3.5", " 3.5", " 3.5", " 3.5", > "13.9", "13.9", "13.9", "13.9", "13.9", "13.9", "13.9", "13.9", > "13.9", "13.9", "13.9", "13.9", "13.9", "13.9", "13.9", "1.0686708", > "1.0686708", "1.0686708", "1.0686708", "1.0686708", "1.0686708", > "1.0686708", "1.0686708", "1.0686708", "1.1111950", "1.1111950", > "1.1111950", "1.1111950", "1.1111950", "1.1111950"), .indexCLASS > c("POSIXct", > "POSIXt"), tclass = c("POSIXct", "POSIXt"), .indexTZ = "", tzone = "", > class = c("xts", > "zoo"), index = structure(c(1218026940, 1218026940, 1218026940, > 1218026940, 1218026940, 1218026940, 1218026940, 1218026940, 1218026940, > 1218031380, 1218031380, 1218031380, 1218031380, 1218031380, 1218031380 > ), tzone = "", tclass = c("POSIXct", "POSIXt")), .Dim = c(15L, > 13L), .Dimnames = list(NULL, c("dive_id", "date", "time", "species", > "count", "size", "site", "depth", "level", "TRANSECT", "VIS_M", > "TEMP_C", "swell_URSKI"))) > diveData_2009 (first 15 lines) > structure(c("62", "62", "62", "62", "62", "62", "62", "62", "62", > "62", "62", "62", "62", "62", "62", "10/12/2009", "10/12/2009", > "10/12/2009", "10/12/2009", "10/12/2009", "10/12/2009", "10/12/2009", > "10/12/2009", "10/12/2009", "10/12/2009", "10/12/2009", "10/12/2009", > "10/12/2009", "10/12/2009", "10/12/2009", "12:44", "12:44", "12:44", > "12:44", "12:44", "12:44", "12:44", "12:44", "12:44", "12:44", > "12:44", "12:44", "12:44", "12:44", "12:44", "E. lateralis", > "E. lateralis", "E. lateralis", "E. lateralis", "O. pictus", > "S. OYT", "S. OYT", "S. atrovirens", "S. atrovirens", "S. atrovirens", > "S. atrovirens", "S. carnatus", "S. carnatus", "S. carnatus", > "S. carnatus", " 2", " 1", " 1", " 1", " 1", " 3", " 1", " 3", > " 2", " 1", " 1", " 1", " 2", " 1", " 1", "15", "22", "25", "27", > " 4", " 6", " 8", " 5", "20", "23", "25", " 5", "20", "26", "30", > "Hopkins", "Hopkins", "Hopkins", "Hopkins", "Hopkins", "Hopkins", > "Hopkins", "Hopkins", "Hopkins", "Hopkins", "Hopkins", "Hopkins", > "Hopkins", "Hopkins", "Hopkins", "15", "15", "15", "15", "15", > "15", "15", "15", "15", "15", "15", "15", "15", "15", "15", "B", > "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", > "B", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", "1", > "1", "1", "1", "4.0000", "4.0000", "4.0000", "4.0000", "4.0000", > "4.0000", "4.0000", "4.0000", "4.0000", "4.0000", "4.0000", "4.0000", > "4.0000", "4.0000", "4.0000"), class = c("xts", "zoo"), .indexCLASS > c("POSIXct", > "POSIXt"), tclass = c("POSIXct", "POSIXt"), .indexTZ = "", tzone = "", > index = structure(c(1255365840, > 1255365840, 1255365840, 1255365840, 1255365840, 1255365840, 1255365840, > 1255365840, 1255365840, 1255365840, 1255365840, 1255365840, 1255365840, > 1255365840, 1255365840), tzone = "", tclass = c("POSIXct", "POSIXt" > )), .Dim = c(15L, 11L), .Dimnames = list(NULL, c("dive_id", "date", > "time", "species", "count", "size", "site", "depth", "level", > "TRANSECT", "VIS_M"))) > diveCond_all (first 15 lines) > structure(list(dive_id = structure(1:15, .Label = c(" 1", " 2", > " 3", " 4", " 5", " 6", " 7", " 8", " 9", "10", "11", "12", "13", > "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", > "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", > "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", > "47", "48", "49", "50", "51", "52", "53", "54", "55", "56", "57", > "58", "59", "60", "61", "62", "63", "64", "65", "66", "67", "68", > "69", "70", "71", "72", "73", "74", "75", "76", "77", "78", "79", > "80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "90", > "91", "92", "93", "94", "95", "96", "97"), class = "factor"), > timestamp = structure(c(1218026940, 1218031380, 1218032700, > 1218202920, 1218207180, 1218213720, 1218478320, 1218478320, > 1218463800, 1218463800, 1218466860, 1218467760, 1218634260, > 1218638100, 1218639720), class = c("POSIXct", "POSIXt"), tzone =""),> visability = structure(c(5L, 5L, NA, 6L, NA, NA, NA, NA, > NA, NA, 11L, 10L, NA, NA, NA), .Label = c(" 1.5", " 2.0", > " 2.5", " 3.0", " 3.5", " 4.0", " 5.0", " 5.5", " 6.0", " 6.5", > " 7.0", " 7.5", " 8.0", " 9.0", "10.0", "12.0", "13.0", "3.0000", > "4.0000", "5.0000", "5.4864", "6.0000", "6.0960"), class ="factor"),> r_wvht = c(0.91, 1, 1.02, 0.76, 0.78, 0.78, 1.35, 1.35, 1.57, > 1.57, 1.53, 1.53, 1.51, 1.53, 1.69), r_dpd = c(14.29, 4.35, > 4.35, 13.33, 13.33, 8.33, 8.33, 8.33, 8.33, 8.33, 8.33, 8.33, > 9.09, 9.09, 8.33), r_apt = c(4.59, 4.45, 4.26, 5.87, 6.27, > 6.58, 6.7, 6.7, 6.67, 6.67, 6.66, 6.5, 6.99, 6.95, 7.19), > r_mwd = c(229, 291, 297, 226, 228, 260, 287, 287, 291, 291, > 290, 290, 294, 292, 298), r_wtmp = c(12.6, 12.6, 12.5, 12.7, > 12.6, 12.6, 12.8, 12.8, 12.7, 12.7, 12.7, 12.7, 13.4, 13.4, > 13.5), l_salinity = c("33.513", "33.513", "33.513", "33.513", > "33.513", "33.513", "33.513", "33.513", "33.513", "33.513", > "33.513", "33.513", "33.513", "33.513", "33.513"), l_o2 = c("0", > "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", > "0", "0"), l_hs = c("54.926", "54.926", "54.926", "54.926", > "54.926", "54.926", "54.926", "54.926", "54.926", "54.926", > "54.926", "54.926", "54.926", "54.926", "54.926"), l_tp = c("340.0", > "340.0", "340.0", "340.0", "340.0", "340.0", "340.0", "340.0", > "340.0", "340.0", "340.0", "340.0", "340.0", "340.0", "340.0" > ), l_wdir = c("1.600", "1.600", "1.600", "1.600", "1.600", > "1.600", "1.600", "1.600", "1.600", "1.600", "1.600", "1.600", > "1.600", "1.600", "1.600"), l_along = c(NA_real_, NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_), l_cross = c(NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, > NA_real_, NA_real_, NA_real_, NA_real_, NA_real_), l_mab = c(".", > ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", > ".", "."), l_depth = c(" 9.090", " 9.090", " 9.090", " 9.090", > " 9.090", " 9.090", " 9.090", " 9.090", " 9.090", " 9.090", > " 9.090", " 9.090", " 9.090", " 9.090", " 9.090"), l_temp1 > c("11.288", > "11.288", "11.288", "11.288", "11.288", "11.288", "11.288", > "11.288", "11.288", "11.288", "11.288", "11.288", "11.288", > "11.288", "11.288"), l_temp7 = c("13.675", "13.675", "13.675", > "13.675", "13.675", "13.675", "13.675", "13.675", "13.675", > "13.675", "13.675", "13.675", "13.675", "13.675", "13.675" > ), l_temp14 = c("13.743", "13.743", "13.743", "13.743", "13.743", > "13.743", "13.743", "13.743", "13.743", "13.743", "13.743", > "13.743", "13.743", "13.743", "13.743")), .Names = c("dive_id", > "timestamp", "visability", "r_wvht", "r_dpd", "r_apt", "r_mwd", > "r_wtmp", "l_salinity", "l_o2", "l_hs", "l_tp", "l_wdir", "l_along", > "l_cross", "l_mab", "l_depth", "l_temp1", "l_temp7", "l_temp14" > ), row.names = c(" 1", " 2", " 3", " 4", " 5", " 6", " 7", " 8", > " 9", "10", "11", "12", "13", "14", "15"), class = "data.frame") > fishTable (first 15 lines) > structure(list(name_2009 = c("E. lateralis", "O. pictus", "S.atrovirens",> "S. carnatus", "S. caurinus", "S. chrysomelas", "S. miniatus", > "S. mystinus", "S. OYT", "S. pinniger", "S. serriceps", "E. jacksoni", > "B. frenatus", "H. decagrammus", "S. rastrelliger"), name_2008 =c("ELAT",> "OPIC", "SATR", "SCAR", "SCAU", "SCHR", "SMIN", "SMYS", "OYT", > "SPIN", "STRE", "EJAC", "BFRE", "HDEC", "SRAS"), description =c("Striped> Surfperch,", > "Painted Greenling,", "kelp rockfish,", "gopher rockfish,", "copper > rockfish,", > "black and yellow rockfish,", "vermilion rockfish,", "blue rockfish,", > "OYT (Olive/Yellowtail) Rockfish, This species group includes Sebastes > serranoides and Sebastes flavidus (Olive/Yellowtail)", > "canary rockfish,", "treefish,", "Black Surfperch,", "Kelp Surfperch,", > "Kelp Greenling,", "grass rockfish,")), .Names = c("name_2009", > "name_2008", "description"), row.names = c(NA, 15L), class ="data.frame")> Thank you for your insight and help, > Yolande[[alternative HTML version deleted]]
Rui Barradas
2012-Jul-18 17:37 UTC
[R] loop searching the id corresponding to the given index (timestamp)
Hello,
Try the following.
for(i in 1:dim(diveData_2008)[1]){
# Which dive is this observation from
thisIndex <- as.character(index(diveData_2008[i,]))
thisIndex <- as.POSIXct(thisIndex)
dive_id <- diveCond_all$dive_id[diveCond_all$timestamp == thisIndex]
#
[... etc ...]
And the same in the 2009 loop.
I think this is it.
Good luck,
Rui Barradas
Em 18-07-2012 14:47, Yolande Tra escreveu:> Hello,
>
> I have the following loop for two data sets: diveData_2008 and
> diveData_2009. It uses two other data: diveCond_all and fishTable. The
> problem is at the point to identify the dive_id for the given index (index
> is timestamp). It keeps on saying
> for the1st loop
> Error in fishReport$dive_id[i] <- dive_id : replacement has length zero
> for the 2nd loop
> Error in fishReport$dive_id[i + j] <- dive_id :
> replacement has length zero
>
> That is where the only problem resides.
> Here is the code and below are the first 15 lines of data
>
> N <- dim(diveData_2009)[1] + dim(diveData_2008)[1]
> fishReport <- data.frame(matrix(0, nrow=N, ncol=11))
> names(fishReport) <- c("dive_id", "site",
"section", "level", "transect",
> "depth", "species", "count",
"size")
> for(i in 1:dim(diveData_2008)[1]){
> # Which dive is this observation from
> thisIndex <- as.character(index(diveData_2008[i,]))
> dive_id <-
> diveCond_all$dive_id[diveCond_all$timestamp==thisIndex]
> cat(dive_id, thisIndex, "\n")
> # Store the pertinent data in the fish report data.frame
> fishReport$dive_id[i] <- dive_id
> fishReport$site[i] <-
> diveData_2008[i,"site"]
> fishReport$level[i] <-
> diveData_2008[i,"level"]
> fishReport$section[i] <- 0
> fishReport$transect[i] <-
> as.numeric(diveData_2008[i,"TRANSECT"])
> fishReport$depth[i] <-
> as.numeric(diveData_2008[i,"depth"])
> fishReport$species[i] <-
>
fishTable$name_2009[fishTable$name_2008==as.character(diveData_2008[i,"species"])
> ][1]
> fishReport$count[i] <-
> as.numeric(diveData_2008[i,"count"])
> fishReport$size[i] <-
> as.numeric(diveData_2008[i,"size"])
> fishReport$visibility[i] <-
> as.numeric(diveData_2008[i,"VIS_M"])
> fishReport$swell[i]
<-as.numeric(diveData_2008[i,"swell_URSKI"])
> }
> j<-i
> ## The 2009 dives
> for(i in i+1:dim(diveData_2009)[1]){
> thisIndex <- as.character(index(diveData_2009[i,]))
> dive_id <-
> diveCond_all$dive_id[diveCond_all$timestamp==thisIndex]
> cat(dive_id, thisIndex, "\n")
> fishReport$dive_id[i+j] <- dive_id
> fishReport$site[i+j] <-
"Hopkins"
> fishReport$level[i+j] <-
> diveData_2009[i,"level"]
> fishReport$transect[i+j] <-
> as.numeric(diveData_2009[i,"TRANSECT"])
> fishReport$depth[i+j]
<-
> as.numeric(diveData_2009[i,"depth"])
> fishReport$species[i+j] <-
> diveData_2009[i,"species"]
> fishReport$count[i+j] <-
> as.numeric(diveData_2008[i,"count"])
> fishReport$size[i+j] <-
> as.numeric(diveData_2009[i,"size"])
> fishReport$visibility[i+j] <-
> as.numeric(diveData_2008[i,"VIS_M"])
> }
>
>
> diveData_2008 (first 15 lines)
> structure(c(" 1", " 1", " 1", " 1",
" 1", " 1", " 1", " 1", " 1",
> " 2", " 2", " 2", " 2", "
2", " 2", "8/6/2008", "8/6/2008",
"8/6/2008",
> "8/6/2008", "8/6/2008", "8/6/2008",
"8/6/2008", "8/6/2008", "8/6/2008",
> "8/6/2008", "8/6/2008", "8/6/2008",
"8/6/2008", "8/6/2008", "8/6/2008",
> "8:49", "8:49", "8:49", "8:49",
"8:49", "8:49", "8:49", "8:49",
> "8:49", "10:03", "10:03", "10:03",
"10:03", "10:03", "10:03",
> "S. OYT", "S. atrovirens", "S. atrovirens",
"S. atrovirens",
> "O. pictus", "C. nicholsii", "C. nicholsii",
"D. vacca", "No organisms",
> "S. OYT", "S. atrovirens", "S. atrovirens",
"S. atrovirens",
> "S. chrysomelas", "O. pictus", " 15", "
1", " 1", " 1",
> " 1", " 1", " 1", " 1",
" 1", " 1", " 1", " 1",
> " 1", " 1", " 1", " 6",
"23", "27", "29", " 8", " 8",
" 9",
> "18", NA, " 6", "23", "28",
"35", "32", " 8", "Hopkins",
"Hopkins",
> "Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
> "Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
> "Hopkins", "15", "15", "15",
"15", "15", "15", "15", "15",
"15",
> "10", "10", "10", "10",
"10", "10", "B", "B", "B",
"B", "B",
> "B", "B", "B", "M", "B",
"B", "B", "B", "B", "B",
" 1", " 1",
> " 1", " 1", " 1", " 1", "
1", " 1", " 1", " 2", " 2", "
2", " 2",
> " 2", " 2", " 3.5", " 3.5", "
3.5", " 3.5", " 3.5", " 3.5", "
3.5",
> " 3.5", " 3.5", " 3.5", " 3.5",
" 3.5", " 3.5", " 3.5", " 3.5",
> "13.9", "13.9", "13.9", "13.9",
"13.9", "13.9", "13.9", "13.9",
> "13.9", "13.9", "13.9", "13.9",
"13.9", "13.9", "13.9", "1.0686708",
> "1.0686708", "1.0686708", "1.0686708",
"1.0686708", "1.0686708",
> "1.0686708", "1.0686708", "1.0686708",
"1.1111950", "1.1111950",
> "1.1111950", "1.1111950", "1.1111950",
"1.1111950"), .indexCLASS > c("POSIXct",
> "POSIXt"), tclass = c("POSIXct", "POSIXt"),
.indexTZ = "", tzone = "",
> class = c("xts",
> "zoo"), index = structure(c(1218026940, 1218026940, 1218026940,
> 1218026940, 1218026940, 1218026940, 1218026940, 1218026940, 1218026940,
> 1218031380, 1218031380, 1218031380, 1218031380, 1218031380, 1218031380
> ), tzone = "", tclass = c("POSIXct",
"POSIXt")), .Dim = c(15L,
> 13L), .Dimnames = list(NULL, c("dive_id", "date",
"time", "species",
> "count", "size", "site", "depth",
"level", "TRANSECT", "VIS_M",
> "TEMP_C", "swell_URSKI")))
> diveData_2009 (first 15 lines)
> structure(c("62", "62", "62", "62",
"62", "62", "62", "62", "62",
> "62", "62", "62", "62",
"62", "62", "10/12/2009", "10/12/2009",
> "10/12/2009", "10/12/2009", "10/12/2009",
"10/12/2009", "10/12/2009",
> "10/12/2009", "10/12/2009", "10/12/2009",
"10/12/2009", "10/12/2009",
> "10/12/2009", "10/12/2009", "10/12/2009",
"12:44", "12:44", "12:44",
> "12:44", "12:44", "12:44", "12:44",
"12:44", "12:44", "12:44",
> "12:44", "12:44", "12:44", "12:44",
"12:44", "E. lateralis",
> "E. lateralis", "E. lateralis", "E.
lateralis", "O. pictus",
> "S. OYT", "S. OYT", "S. atrovirens", "S.
atrovirens", "S. atrovirens",
> "S. atrovirens", "S. carnatus", "S.
carnatus", "S. carnatus",
> "S. carnatus", " 2", " 1", " 1",
" 1", " 1", " 3", " 1", " 3",
> " 2", " 1", " 1", " 1", "
2", " 1", " 1", "15", "22",
"25", "27",
> " 4", " 6", " 8", " 5",
"20", "23", "25", " 5", "20",
"26", "30",
> "Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
> "Hopkins", "Hopkins", "Hopkins",
"Hopkins", "Hopkins", "Hopkins",
> "Hopkins", "Hopkins", "Hopkins",
"15", "15", "15", "15", "15",
> "15", "15", "15", "15",
"15", "15", "15", "15", "15",
"15", "B",
> "B", "B", "B", "B", "B",
"B", "B", "B", "B", "B",
"B", "B", "B",
> "B", "1", "1", "1", "1",
"1", "1", "1", "1", "1",
"1", "1", "1",
> "1", "1", "1", "4.0000",
"4.0000", "4.0000", "4.0000", "4.0000",
> "4.0000", "4.0000", "4.0000",
"4.0000", "4.0000", "4.0000", "4.0000",
> "4.0000", "4.0000", "4.0000"), class =
c("xts", "zoo"), .indexCLASS > c("POSIXct",
> "POSIXt"), tclass = c("POSIXct", "POSIXt"),
.indexTZ = "", tzone = "",
> index = structure(c(1255365840,
> 1255365840, 1255365840, 1255365840, 1255365840, 1255365840, 1255365840,
> 1255365840, 1255365840, 1255365840, 1255365840, 1255365840, 1255365840,
> 1255365840, 1255365840), tzone = "", tclass =
c("POSIXct", "POSIXt"
> )), .Dim = c(15L, 11L), .Dimnames = list(NULL, c("dive_id",
"date",
> "time", "species", "count", "size",
"site", "depth", "level",
> "TRANSECT", "VIS_M")))
> diveCond_all (first 15 lines)
> structure(list(dive_id = structure(1:15, .Label = c(" 1", "
2",
> " 3", " 4", " 5", " 6", "
7", " 8", " 9", "10", "11",
"12", "13",
> "14", "15", "16", "17",
"18", "19", "20", "21", "22",
"23", "24",
> "25", "26", "27", "28",
"29", "30", "31", "32", "33",
"34", "35",
> "36", "37", "38", "39",
"40", "41", "42", "43", "44",
"45", "46",
> "47", "48", "49", "50",
"51", "52", "53", "54", "55",
"56", "57",
> "58", "59", "60", "61",
"62", "63", "64", "65", "66",
"67", "68",
> "69", "70", "71", "72",
"73", "74", "75", "76", "77",
"78", "79",
> "80", "81", "82", "83",
"84", "85", "86", "87", "88",
"89", "90",
> "91", "92", "93", "94",
"95", "96", "97"), class = "factor"),
> timestamp = structure(c(1218026940, 1218031380, 1218032700,
> 1218202920, 1218207180, 1218213720, 1218478320, 1218478320,
> 1218463800, 1218463800, 1218466860, 1218467760, 1218634260,
> 1218638100, 1218639720), class = c("POSIXct",
"POSIXt"), tzone = ""),
> visability = structure(c(5L, 5L, NA, 6L, NA, NA, NA, NA,
> NA, NA, 11L, 10L, NA, NA, NA), .Label = c(" 1.5", "
2.0",
> " 2.5", " 3.0", " 3.5", "
4.0", " 5.0", " 5.5", " 6.0", "
6.5",
> " 7.0", " 7.5", " 8.0", "
9.0", "10.0", "12.0", "13.0",
"3.0000",
> "4.0000", "5.0000", "5.4864",
"6.0000", "6.0960"), class = "factor"),
> r_wvht = c(0.91, 1, 1.02, 0.76, 0.78, 0.78, 1.35, 1.35, 1.57,
> 1.57, 1.53, 1.53, 1.51, 1.53, 1.69), r_dpd = c(14.29, 4.35,
> 4.35, 13.33, 13.33, 8.33, 8.33, 8.33, 8.33, 8.33, 8.33, 8.33,
> 9.09, 9.09, 8.33), r_apt = c(4.59, 4.45, 4.26, 5.87, 6.27,
> 6.58, 6.7, 6.7, 6.67, 6.67, 6.66, 6.5, 6.99, 6.95, 7.19),
> r_mwd = c(229, 291, 297, 226, 228, 260, 287, 287, 291, 291,
> 290, 290, 294, 292, 298), r_wtmp = c(12.6, 12.6, 12.5, 12.7,
> 12.6, 12.6, 12.8, 12.8, 12.7, 12.7, 12.7, 12.7, 13.4, 13.4,
> 13.5), l_salinity = c("33.513", "33.513",
"33.513", "33.513",
> "33.513", "33.513", "33.513",
"33.513", "33.513", "33.513",
> "33.513", "33.513", "33.513",
"33.513", "33.513"), l_o2 = c("0",
> "0", "0", "0", "0",
"0", "0", "0", "0", "0",
"0", "0", "0",
> "0", "0"), l_hs = c("54.926",
"54.926", "54.926", "54.926",
> "54.926", "54.926", "54.926",
"54.926", "54.926", "54.926",
> "54.926", "54.926", "54.926",
"54.926", "54.926"), l_tp = c("340.0",
> "340.0", "340.0", "340.0",
"340.0", "340.0", "340.0", "340.0",
> "340.0", "340.0", "340.0",
"340.0", "340.0", "340.0", "340.0"
> ), l_wdir = c("1.600", "1.600", "1.600",
"1.600", "1.600",
> "1.600", "1.600", "1.600",
"1.600", "1.600", "1.600", "1.600",
> "1.600", "1.600", "1.600"), l_along =
c(NA_real_, NA_real_,
> NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_,
> NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_,
> NA_real_), l_cross = c(NA_real_, NA_real_, NA_real_, NA_real_,
> NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_,
> NA_real_, NA_real_, NA_real_, NA_real_, NA_real_), l_mab =
c(".",
> ".", ".", ".", ".",
".", ".", ".", ".", ".",
".", ".", ".",
> ".", "."), l_depth = c(" 9.090", "
9.090", " 9.090", " 9.090",
> " 9.090", " 9.090", " 9.090", "
9.090", " 9.090", " 9.090",
> " 9.090", " 9.090", " 9.090", "
9.090", " 9.090"), l_temp1 > c("11.288",
> "11.288", "11.288", "11.288",
"11.288", "11.288", "11.288",
> "11.288", "11.288", "11.288",
"11.288", "11.288", "11.288",
> "11.288", "11.288"), l_temp7 =
c("13.675", "13.675", "13.675",
> "13.675", "13.675", "13.675",
"13.675", "13.675", "13.675",
> "13.675", "13.675", "13.675",
"13.675", "13.675", "13.675"
> ), l_temp14 = c("13.743", "13.743",
"13.743", "13.743", "13.743",
> "13.743", "13.743", "13.743",
"13.743", "13.743", "13.743",
> "13.743", "13.743", "13.743",
"13.743")), .Names = c("dive_id",
> "timestamp", "visability", "r_wvht",
"r_dpd", "r_apt", "r_mwd",
> "r_wtmp", "l_salinity", "l_o2",
"l_hs", "l_tp", "l_wdir", "l_along",
> "l_cross", "l_mab", "l_depth",
"l_temp1", "l_temp7", "l_temp14"
> ), row.names = c(" 1", " 2", " 3", "
4", " 5", " 6", " 7", " 8",
> " 9", "10", "11", "12",
"13", "14", "15"), class = "data.frame")
> fishTable (first 15 lines)
> structure(list(name_2009 = c("E. lateralis", "O.
pictus", "S. atrovirens",
> "S. carnatus", "S. caurinus", "S.
chrysomelas", "S. miniatus",
> "S. mystinus", "S. OYT", "S. pinniger",
"S. serriceps", "E. jacksoni",
> "B. frenatus", "H. decagrammus", "S.
rastrelliger"), name_2008 = c("ELAT",
> "OPIC", "SATR", "SCAR", "SCAU",
"SCHR", "SMIN", "SMYS", "OYT",
> "SPIN", "STRE", "EJAC", "BFRE",
"HDEC", "SRAS"), description = c("Striped
> Surfperch,",
> "Painted Greenling,", "kelp rockfish,", "gopher
rockfish,", "copper
> rockfish,",
> "black and yellow rockfish,", "vermilion rockfish,",
"blue rockfish,",
> "OYT (Olive/Yellowtail) Rockfish, This species group includes Sebastes
> serranoides and Sebastes flavidus (Olive/Yellowtail)",
> "canary rockfish,", "treefish,", "Black
Surfperch,", "Kelp Surfperch,",
> "Kelp Greenling,", "grass rockfish,")), .Names =
c("name_2009",
> "name_2008", "description"), row.names = c(NA, 15L),
class = "data.frame")
> Thank you for your insight and help,
> Yolande
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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