R programming Naming the output file using a variable

Question

I'm trying to redirect the output to a file by using the write.csv statement. I have 14 different output files, here's the code:

    trackfilenums=1:14
    for (i in trackfilenums){
       calculations etc
       write.csv(max.hsi, 'Index.csv', row.names=F)
    }

I want to label the output csv files as, 'Index_1.csv', 'Index_2.csv', etc. 

How can I do this?

Answer 1

Use the paste command:

write.csv(max.hsi, paste0("Index_", i,".csv"), row.names=F)