Displaying 6 results from an estimated 6 matches for "wellid".
Did you mean:
cellid
2009 Sep 28
4
Running an ANOVA with a BY
I have a simple 1 way anova coded like
summary(ANOVA1way <- aov(Value ~ WellID, data = welldata))
How can I use the BY function to do this ANOVA for each group using another
variable in the dataset?? I tried coding it like this, but it doesn't seem
to work.
summary(ANOVA1way <- by(welldata, Analyte, function(x) aov(Value ~ WellID,
data = welldata)))
In SAS I would...
2012 Feb 11
2
obtaining a true/false vector with combination of strsplit, length, unlist,
Hi,
A pared down version of the dataset I'm working with:
edm<-read.table(textConnection("WELLID X_GRID Y_GRID LAYER ROW COLUMN
SPECIES CALCULATED OBSERVED
w301_3 4428. 1389 2 6 18 1 3558
6490.
w304_12 4836. 6627 2 27 20 1 3509
3228.
02_10_12080 3.6125E+04 13875 1 56 145 1 2774
-9...
2009 Sep 28
6
SAS user now converting to R - Help with Transpose
...d need some help as I am used to doing this
in SAS.
I have a dataset that looks like this:
Chemical Well1 Well2 Well3 Well4
BOD 13.2 14.2 15.5 14.2
O2 7.8 2.6 3.5 2.4
TURB 10.2 14.6 18.5 17.3
and so on with more chemicals....
I would like to transpose my data so that it looks like this:
Chemical WellID Value
BOD Well1 13.2
BOD Well2 14.2
BOD Well3 15.5
BOD Well4 14.2
O2 Well1 7.8
O2 Well2 2.6
.... and so on
In sas I would code it like this:
proc sort data=ds1; by chemical; run;
Proc Transpose data=ds1 out=ds2;
by chemical;
var Well1 Well2 Well3 Well4;
run;
data ds3; set ds2;
rename _name_ = Well...
2010 May 14
2
insert values based on common ID
...olumn
weekAvg in b to the column weekAvg in a. The dataset a is several thousand
lines long. I've tried looking at 'match', writing functions, 'rbind.fill'
and various search terms in this forum to no avail. Thanks...
a<-read.table(textConnection("row ID date Reading WellID week weekAvg
1 Well_80-2 6/12/2000 2:00 -202.034 80-2 0 NA
2 Well_80-2 6/12/2000 3:00 -201.018 80-2 0 NA
3 Well_80-2 6/12/2000 4:00 -199.494 80-2 0 NA
4 Well_80-2 6/12/2000 5:00 -197.716 80-2 0 NA
5 Well_80-2 6/12/2000 6:00 -190.858 80-2 0 NA
6 Well_80-2 6/12/2000 7:00 -181.460 80-2 0 NA
7 Well_80-...
2011 May 04
1
merging multiple columns from two dataframes
...two
dataframes based on sid and sen. this is how my two dataframes look like
dat<-data.frame(snpname=rep(letters[1:12],12),sid=rep(1:12,each=12),
genotype=rep(c('aa','ab','bb'), 12))
pheno<-data.frame(sen=1:12,disease=rep(c('N','Y'),6), wellid=1:12)
I have to merge or add the disease column and 3 other columns to the data
file. I am unable to use merge in R. I have searched google, i guess i am
not hitting the correct terms to get the answer. I would appreciate any
input on this issue. thanks
sharad
--
View this message in context: htt...
2010 May 15
1
barplot: invalid 'xlim' value
...<-seq(as.POSIXlt("2000-06-12 02:00","%Y-%m-%d
%H:%M",tz=""),as.POSIXlt("2000-07-17 01:00","%Y-%m-%d
%H:%M",tz=""),by="hour")
#Load in the data for the base plot
well.80.2<-read.table(textConnection("row~ID~date~Reading~WellID~week
19578~Well_80-2~6/12/2000 2:00~-202.034~80-2~0
19579~Well_80-2~6/12/2000 3:00~-201.018~80-2~0
19580~Well_80-2~6/12/2000 4:00~-199.494~80-2~0
19581~Well_80-2~6/12/2000 5:00~-197.716~80-2~0
19582~Well_80-2~6/12/2000 6:00~-190.858~80-2~0
19583~Well_80-2~6/12/2000 7:00~-181.460~80-2~0
19584~Well_8...