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Matrix "User Define"

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ANAND ASP
ANAND ASP on 26 Nov 2020
Commented: KSSV on 26 Nov 2020
i wanna make matrix like user define matrix
take input from user but in case user dont know the value, they can put "NO"
user (2,2) dont know the value,
Matrix= 12 45 5
50 NO 63
45 56 66
that value i can read and modified also...

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Answers (1)

KSSV
KSSV on 26 Nov 2020
What you gave is a combination of numbers and strings.....this cannot be acieved by a matrix. But you can use cell arrays for this.
A = [{1} {2} ; {'NO'} {3}] ;
If you want matrix, you can consider repalcing with NaN instead of NO
A = [1 2 ; NaN 3] ;

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KSSV
KSSV on 26 Nov 2020
Yes easily can be changed...you can get the indices of NaN using isnan.
idx = isnan(A) ; % get logical indices of NaN
A(idx) = 3 ;

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