Generate new column from cumulating another

Hey,

I am trying to cumulate the values in a table's column and generate a new column with those values. The Table has 2734 lines. I tried running this code:

for x = 0:1:2733
t.AccumulatedCapacityLow(x+1)=t.neededCapacityLow(x)+t.neededCapacityLow(x+1)
end

This is not working as array indices must be positive integers - is there a way around that?

The result should look like that:

t.nCL t.ACL
1        1
2        3    
3        6    
4        10

Thanks for your help!

Answer 1

[Stephan]

A = (1:4)'
A(:,2) = cumsum(A)

gives:

A =

     1
     2
     3
     4


A =

     1     1
     2     3
     3     6
     4    10

[Lukas Netzer]

TYVM!