Hi Jim, Thank you a lot. Is it a FAQ concerning lattice or FOR loop in general?
Regards, Xochitl C. Le 05/06/2013 10:55, Jim Holtman a écrit :
This is an FAQ. you have to explicitly 'print' the histogram: print(histogram(~ Mpool[[2]]$LngtClas | Mpool[[2]]$SpCode, type = "count", col = "lightgrey", xlab= "LngtClas", main = paste("Length distribution per species for Mpool", "2", sep = "_"))) Sent from my iPad On Jun 5, 2013, at 4:37, Xochitl CORMON<xochitl.cor...@ifremer.fr> wrote:Hi all, I'm encountering a problem I do not understand on my data: library (lattice) Mpool1<- Table[Table$Subarea %in% c("52E9", "51E9"),] Mpool2<- Table[Table$Subarea %in% c("53F0", "52F0"),] Mpool3<- Table[Table$Subarea %in% c("51F0", "50F0"),] Mpool4<- Table[Table$Subarea %in% c("51F1", "52F1"),] Mpool<- list(Mpool1, Mpool2, Mpool3, Mpool4) histogram(~ Mpool[[2]]$LngtClas | Mpool[[2]]$SpCode, type = "count", col = "lightgrey", xlab= "LngtClas", main = paste("Length distribution per species for Mpool", "2", sep = "_")) #### This part works perfectly and I obtain the graph reprensenting Mpool2 length class count per species. #### Now when I want to automatize this with a "for" loop nothing is plotted. for (i in c(2)){ windows() histogram(~ Mpool[[i]]$LngtClas | Mpool[[i]]$SpCode, type = "count", col = "lightgrey", xlab= "LngtClas", main = paste("Length distribution per species for Mpool", i, sep = "_")) print (i) } ### Running this loop I obtained windows filled grey (no plot drawn at all) but the print (i) print a "2" as expected. I really dont understand what's wrong with the loop. There is no error message and no notification in R. You can find enclosed my data in txt file. Thank you very much for any help, Xochitl C. <>< <>< <>< <>< Xochitl CORMON +33 (0)3 21 99 56 84 Doctorante en sciences halieutiques PhD student in fishery sciences <>< <>< <>< <>< IFREMER Centre Manche Mer du Nord 150 quai Gambetta 62200 Boulogne-sur-Mer <>< <>< <>< <>< <Table.txt> ______________________________________________ R-help@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.
______________________________________________ R-help@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.
