Marco, The error message indicates that nlon*nlat is 420 and that 1378620/420 has a remainder. For the matrix to form, all rows have to be complete.
I am guessing you have at least one value incorrect among nlon, nlat, t or the length of fulldatav. Mark R. Mark Sharp, Ph.D. Data Scientist and Biomedical Statistical Consultant 7526 Meadow Green St. San Antonio, TX 78251 mobile: 210-218-2868 rmsh...@me.com > On Aug 10, 2018, at 10:00 AM, Marco Antonio Pérez <marko.lun...@gmail.com> > wrote: > > I am trying to write a function to make a matrix of precipitation with > this secuencie; > ######## PRIMER PERIODO > cordex1 <- > nc_open("pr_CAM-44i_ICHEC-EC-EARTH_rcp45_r12i1p1_SMHI-RCA4_v1_mon_200601-201012.nc") > fullmon1<-ncvar_get(cordex1,"pr") > lat<-ncvar_get(cordex1,"lat", start=c(35.5),count=c(20)) > lon <-ncvar_get(cordex1,"lon", start=c(125),count=c(21.5)) > t <- ncvar_get(cordex1,"time") > nlon <- dim(lon) > nlat <- dim(lat) > nt <- dim(t) > fulldatav <- as.vector(fullmon1) > fulldata <- matrix(fulldatav, nrow=nlon*nlat, ncol=nt) > lonlat <- expand.grid(lon,lat) > df_cordex1<- data.frame(lonlat,fulldata) > > but with the expresion fulldata <- matrix(fulldatav, nrow=nlon*nlat, > ncol=nt) this error appears > Warning message: > In matrix(fulldatav, nrow = nlon * nlat, ncol = nt) : > data length [1378620] is not a sub-multiple or multiple of the number of > rows [420] > > Somebody help me!!! > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.