search for: sunset

##This is a function that I am trying to write to calculate sunrise and sunset and works "mostly", but returns nonsensical values. What am I #missing? Thanks in advance. ###remember to include maptools as dependence### library(maptools) sunrise.set <- function(lat, long, date, timezone="UTC", num.days=1){ #this needs to be long lat# lat.long <-...

...uot;)) d060101 <- as.POSIXct("2006-01-01", tz="EST") study_seq <- seq(from=d060101, length.out=761, by="days") up.215 <- sunriset(RM215.sp, study_seq, direction="sunrise", POSIXct.out=TRUE) down.215 <- sunriset(RM215.sp, study_seq, direction="sunset", POSIXct.out=TRUE) SC.sp <- SpatialPoints(SC, proj4string=CRS("+proj=longlat +datum=WGS84")) up.SC <- sunriset(SC.sp, study_seq, direction="sunrise", POSIXct.out=TRUE) down.SC <- sunriset(SC.sp, study_seq, direction="sunset", POSIXct.out=TRUE) RM202.sp...

Are there any functions available to calculate sunrise and sunset times for given latitude,longitude and dates? If not, I'll appreciatte any pointers to C code I could use/port. Thanks, Angel

Hi, I have a data.frame that contains a variable act which records the duration (in seconds) of two states (wet-dry) for several individuals (identified by Ring) over a period of time. Since I want to work with daytime (i.e. from sunrise till sunset) and night time (i.e. from sunset till next sunrise), I have to split act from time[i] till sunset and from sunset until time[i+1], and from time[k] till sunrise and from sunrise until time[k+1]. Here is an example with time and act separated by a comma: [i] 01-01-2000 20:55:00 , 360? [i+1] 01-01...

...can provide some insight into why the first three examples using the sunriset function (appended below, with results) give the correct answer, but the fourth generates and error. The first two use ISOdatetime with and without a time zone attribute, and the sunriset function returns the correct sunset time. The third and fourth adds 10 seconds to the ISOdatetime (with and without the time zone attribute) but the function only works when the time zone is specified (example 3). When I look at the objects (print or str) they appear the same, and when I check to see if they are equivalent (e.g....

Hello to all, I have two dataframes, the first with two columns sunrise and sunset (for 10 years). Each of these columns is formatted for date time (ex: 01-Jan-2010 15:37:00) In the second data frame I have GPS information and also a date time column (same format ). What I would like to do is a subset of all the rows from the second dataframe that occurred in day time only so...

...eeds to be long lat# lat.long <- matrix(c(long, lat), nrow=1) day <- as.POSIXct(date, tz=timezone) sequence <- seq(from=day, length.out=num.days , by="days") sunrise <- sunriset(lat.long, sequence, direction="sunrise", POSIXct=TRUE) sunset <- sunriset(lat.long, sequence, direction="sunset", POSIXct=TRUE) ss <- data.frame(sunrise, sunset) ss <- ss[,-c(1,3)] colnames(ss)<-c("sunrise", "sunset") return(ss) } thanks in advance, -- Stephen Sefick Research Scientis...

Does anyone know if there is a sunrise sunset calculator for R? -- Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are mammals, and have not exhausted the annoying little problems of being mammals. -K. Mullis [[alte...

...11.1 33.1 7 752 234 12 0 Where JulianDay, Temperature, Salinity, Depth, Copepod, Barnacle, Gastropod, and Bivalve are the column headers. I am using the pairs function in R to explore my data. My data frame is named Sunset. Using this code: Z=cbind(Sunset$Copepod,Sunset[,c(1:10)]) #the first 10 columns of my data frame are explanatory variables such as temp Pairs.Copepod=pairs(Z,main="Copepods vs. explanatory variables", panel=panel.smooth) I get a great pair plot of Copepods vs. all of the 10 explanato...

I've gotten Microsoft Money Sunset running under wine following the instructions here... http://appdb.winehq.org/objectManager.php?sClass=version&iId=21030 Application runs fine for the most part. But I'm having two problems. Money must use some internal web thingy (technical term) and uses it for it's pages. Every...

Hey guys, I got Money Plus Deluxe Sunset working without ever seeing this thread, but these are the same to issues I had to conquer. I posted these on my AppDB test data submission as well, but thought I'd post it here for your convenience (if you're still trying to get it to work, that is). 1st, the dialog box on each page load...

Dear R helpers, I have a dataframe (test1) containing the time of sunrise and sunset for each day of the year for 3 years. I have another dataframe (test2) containing measurements that are taken every 15 minutes, 24/7. I would like to extract all rows from test2 that occur between sunrise and sunset for the appropriate date. Can you suggest a good vectorized way to do this? K...

hi there, does anyone know how to calculate the amount of daylight on every day of the year in R? I mean the time between sunrise and sunset. thanks -- View this message in context: http://r.789695.n4.nabble.com/daylight-tp4647213.html Sent from the R help mailing list archive at Nabble.com.

In order to make it shut down properly you may try the following. In Wine configuration , "Graphics" tab, check "Emulate a virtual desktop". Now all wine porgrams will be opened "inside" or "above" a Windows' blue desktop area. Now when you want to shutdown MS Money, use mouse right-click on the task bar -> "Close", instead of Money window

...reate mode = 0666 force directory mode = 0777 --- These dropboxes are working well on samba 3.0.14a but not on samba 3.0.26a. We have read the logs on samba 3.0.26a and we have discovered that: [2007/12/12 14:40:32, 5] smbd/filename.c:unix_convert(147) unix_convert called on file "a-advb/Sunset.jpg" [2007/12/12 14:40:32, 5] smbd/filename.c:unix_convert(246) unix_convert begin: name = a-advb/Sunset.jpg, dirpath = a-advb, start = Sunset.jpg [2007/12/12 14:40:32, 5] smbd/dir.c:OpenDir(1079) OpenDir: Can't open a-advb. Permission denied [2007/12/12 14:40:32, 3] smbd/filename.c:sc...

...uot;)) d060101 <- as.POSIXct("2006-01-01", tz="EST") study_seq <- seq(from=d060101, length.out=761, by="days") up.215 <- sunriset(RM215.sp, study_seq, direction="sunrise", POSIXct.out=TRUE) down.215 <- sunriset(RM215.sp, study_seq, direction="sunset", POSIXct.out=TRUE) #I would like to extract just the time part of the output is there any way to do this? -- Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are mamma...

On 1/21/21 8:53 PM, Alfredo Perez wrote: > Is this good news for the "Centos" family? > There is no CentOS "family". CentOS clone is dead and will be now replaced with no-cost RHEL, so in market share (over time) CentOS will be replaced with RHEL. CentOS Stream will be used solely by developers and and entities like Facebook (as a base for their own in house solution).

Dear List, I am trying to find each time a value changes in a dataset. The numbers are variables for day vs. night values, so what I am really getting is the daily sunrise and sunset. A simplified example is the following: x<-seq(1:100) y1<-rep(1,10) y2<-rep(2,10) y<-c(y1,y2,y1,y1,y1,y2,y1,y2,y1,y2) xy<-cbind(x,y) I would like to know each time the numbers change. Correct answer should be: x=1,11,21,51,61,71,81,91 I would appreciate any help or suggestio...

...=c("h","m","s"))) zn <- subset(zh, zh$lig<= 5 & zh$h<8?|?zh$h>=22) # nighttime zn$timepos<-as.POSIXct(zn$time,tz="GMT",format="%d/%m/%y %H:%M:%S") I want to assign timepos to its ?natural? night, that is, the night that goes from sunset of day x to sunrise of day x+1 corresponds to day x: zn$night<-ifelse(zn$h>=0 & zn$h<9,zn$timepos ??oneday?,zn$timepos)??#doesn?t work How can I subtract one day (24 hours) to zn$timepos and obtain a POSIXct output? Thank you for your help, Santi -------------- next part ----------...

Protocols and ciphers are sunsetted all the time, this is a regular thing, but there are announcements before breaking changes are inserted. You assume people are slow to update anyway; some are, some aren't, what you're doing is wildly rewarding the slow updaters and punishing the fast ones. That has negative effects els...