Dear group,
kindly, I have the following data frame
structure(c(2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2,
3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1.5, 2, 1, 0, 2, 2, 1.5,
0, 0, 1, 1, 2, 0, 1, 2), .Dim = c(15L, 3L), .Dimnames = list(
NULL, c("i", "Measure_id", "value")))
it has 3 coulmns
I used
df$newcoulmn <- ave(df$value, paste( df$i, df$Measure_id), FUN=
function(x) x/max(x) )
to get x /max(x) and calc probability.. but I want to do that for each source
measure_id" separately that means that rows 4,7,13 ..their value should be
divided by 1.5 not 2..
rows 1,5,11 will be divided by 2 the max of their same group grouped by
measure id
how to make such grouping
thanks in advance
Ragia
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