[R] Sorting Dataframes

[David A. Johnston]

Here's one way:

# Here I read in your data to a variable 'x'
x = read.delim(textConnection(
"Bin Depth Fish
1 4 2
1 8 24
1 12 4
2 4 3
2 8 21
2 12 2
3 4 12
3 8 2
3 12 33"), sep = " ", header = TRUE)


do.call(rbind, lapply(split(x, x$Bin), function(grp)
grp[which.max(grp$Fish),]))

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