Hey Philip,
I'm not sure if I understand what your "x11", "x12", etc. are. You can
combine the values of your two vectors using the expand.grid function.
There is no need to do nester FOR loops:
> i=c(1,2,3,4,5)
> j=c(1,2,3)
> x=expand.grid(i,j)
> print (x)
Var1 Var2
1 1 1
2 2 1
3 3 1
4 4 1
5 5 1
6 1 2
7 2 2
8 3 2
9 4 2
10 5 2
11 1 3
12 2 3
13 3 3
14 4 3
15 5 3
Hope this helps,
Julian
Philip Twumasi-Ankrah wrote:
I am new to more radical programming in R. I am trying to write a nested 'for'
loop to produce output that takes subscripts like:
for i taking values 1,2,3,4,5 and
j taking values 1,2,3
I want to output for a computation using the combination values of i and j a
value x like this;
i j x
1 1 x11
1 2 x12
1 3 x13
2 1 x21
2 2 x22
2 3 x23
3 1 x31
3 2 x32
3 3 x33
........
.......
Need help urgently.
Thanks.
Philip
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