[R] Automatically naming subsets in a for loop

Hello, I'm trying to subet my data based on long/lat. I have written a for loop however I am not sure how to get R to name all my subsets different things. Here is my code so far... for(i in 0:31){ latl=38+(i*1) latu=39+(i*1) for(j in 0:33){ longl=(-72)+(j*1) longu=(-71)+(j*1) G$i$j-subset(G,

Re: [R] Automatically naming subsets in a for loop

The standard way to do this is to use the cut function to define group categories, and then manipulate data in lists of subsets using lapply function and relatives. There are also tools such as the plyr package, data.table package, sqldf package, and the new dplyr package. If you want more

Re: [R] Automatically naming subsets in a for loop

Here is one way by just truncating your data to integers based on what you are doing: # create some test data n - 1000 G - data.frame(Lat = runif(n, 38, 50), Long = runif(n, -72, -65)) # add a 'key' for segment - based on truncating data G$key - paste(as.integer(G$Lat), as.integer(G$Long),

Re: [R] Automatically naming subsets in a for loop

Thank you very much ! -- View this message in context: http://r.789695.n4.nabble.com/Automatically-naming-subsets-in-a-for-loop-tp4684518p4684524.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list