Dear all,
propably this question sounds stupid to you, but since I'm new to R I got
some troubles regarding the following issue (The table below does not
represent my real data, it is just a simplified example):
My intention is to first subdivide my data into several groups of vectors,
let's say for instance 3 groups, such that group 1={A,B}, group2={C,D},
group3={E,F}. How can I do this even for a much larger data table (about
3'000 columns)??
After that I'd like to calculate weights for each element in the table as
follows: weight(ij)=element(ij)/sum(elements in a row per group).
So, for example:
For the first element of column A: 1/(1+2)=1/3
For the first element of column B: 2/(1+2)=2/3
For the second element of column A: 2/(2+3)=2/5
And so forth.
Table 1:
A B C D E F
1 2 3 4 5 9
2 3 4 5 6 8
3 4 5 6 7 7
4 5 6 7 8 6
5 6 7 8 9 5
I tried to do something like apply(Table1, 1, function(x)x/sum(x(i+1))) but
it returns an error (cannot find function x).
I would be truly grateful for any hints.
Many thanks in advance
Best, Sam
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