MATLAB Answers

Change all elements in 2nd column to 3

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nty huy
nty huy on 27 Sep 2019
Commented: James Tursa on 27 Sep 2019
vArr = [ 5 5 5 5; 5 5 5 5 ; 5 5 5 5; 5 5 5 5; 5 5 5 5 ]
so i have this and i knw how to change one element but how to change whole colum??
i tired this vArr( :, 3 ) - 2 but then only shows one column

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James Tursa
James Tursa on 27 Sep 2019
vArr(:,3) is the 3rd column. vArr(:,2) is the 2nd column. Etc.

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Answers (1)

James Tursa
James Tursa on 27 Sep 2019
Edited: James Tursa on 27 Sep 2019
vArr(:,2) = _____; % <-- you fill in the blank

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James Tursa
James Tursa on 27 Sep 2019
Why are you using the minus operator - instead of the assignment operator = as I show? Why are you indexing into the 3rd column instead of the 2nd column?
nty huy
nty huy on 27 Sep 2019
because im seeing what i can do and you are not helping stop answering my questions if you are not goin to help, DO NOT ANSWER MY QUESTIONS ANYMORE
James Tursa
James Tursa on 27 Sep 2019
Wow ... uh ... OK, no more answers from me ...

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