Help with a for loop and matrices

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I currently have this code where SizeChem is a 24x7 matrix and newcolum is a 24x1 matrix.
newcolumn = sum(SizeChem,2);
for i = 1:length(SizeChem)
T(i) = sum(newcolum(1:i,1));
end
I am wanting to create some arrays or variables that are the sum of the new column but summing one more row than the last. Then I want to take all those individual values and put them back into a matrix (24x1) starting with T{1} thru T{24}. I am also getting the error:
Undefined function or variable 'newcolum'.
Error in Analysis_plots (line 26)
T(i) = sum(newcolum(1:i,1));
I am not sure why this is. Thanks for the help in advanced.

Accepted Answer

Rajat Gupta
Rajat Gupta on 25 Jun 2019
It should be newcolumn instead of newcolum in your loop body.

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