You can do this: split(x, list(x$Product, x$Type), drop = TRUE)
On Thu, Aug 7, 2008 at 8:21 AM, Lars Modig <[EMAIL PROTECTED]> wrote: > Hi > > I'm wondering if you could save new data frames with in a loop using the > names within the data frame... I.e. If you have a data frame as below > > Product Type Test > A One 67 > A Two 55 > B One 42 > A One 55 > > I would like to generate new dataframes as follow... > > A.One (including) > A One 67 > A One 55 > > A.Two (including) > A Two 55 > > B.One (including) > B One 42 > > > I've so far has been able to store each data as an indexed eps picture. I > put a summary of my code below, and as you can see I'm not used to program > R, and actually it was a long time since I used C or some other software > also... > > Platforms <- sort(unique(data_variable[,3])) # find all platforms sorted > > length(Platforms) # no of platforms > > > for(j in 1: length(Platforms)){ # > row_vector <- which(data_variable[,3]==Platforms[j]) #Find the first > platform > cleaner_1 <- data_variable[row_vector,] #store it in > cleaner_1 > > > Motor <- sort(unique(cleaner_1[,5])) # find all motors for > platform 1 sorted > > for(i in 1: length(Motor)){ > row_vector <- which(cleaner_1[,5]==Motor[i]) # find the > first motor > cleaner_type_1 <- cleaner_1[row_vector,] # store it in > cleaner_type_1 > > > > Data_x <-cleaner_type_1[9] > Data_y <-cleaner_type_1[10] > > > hist(Data_x[,], probability=TRUE, breaks=5, main=data_header[9]) > > > savePlot(filename = paste(c("C:/pow",j,"_",i), collapse="") ,type = "eps") > # Save plot with order no i > > ______________________________________________ > 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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O ______________________________________________ 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.