Making elements in an array zero

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deep
deep 2019-1-30
评论： deep 2019-1-30
Hello everyone,
This might be a very basic question or not im not sure.
I have an array say
[1 5 7 9 3 7 0 0 0
1 5 7 9 3 7 0 0 0
1 5 7 9 3 7 0 0 0
1 5 7 9 3 7 0 0 0
1 5 7 9 3 7 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0]
I have to empty these zeros from the table maintaing the array structure as the cell locations are assigned to some other variables.
Even though i make them blank in the input file, when it is read using uiget file this appears as nan and that i converted to zero assuming that the interp1 will work out .
But unfortunately it accounts for these zeros and throws unique grid points error.
So i plan to make these zero's blank or rather the nan elements to blank.
Can anyone help me in this?
I cannot disturb the row column used in the array.
Hope to get a solution.
Thank you
  2 个评论
madhan ravi
madhan ravi 2019-1-30
So you want to basically replace zeros with nan or remove the entire row/column filled with zeros?
deep
deep 2019-1-30
I have to remove the entire rows /column, so that they are not involved in carrying out the interpolation.If i keep them as zeros interpolation throws error.

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采纳的回答

madhan ravi
madhan ravi 2019-1-30
a(~any(a,2),:)=[]; % where a is your matrix
a(:,~any(a))=[]

更多回答（1 个）

KSSV
KSSV 2019-1-30
编辑：KSSV 2019-1-30
Let A be your matrix.
A(A==0) = NaN ;

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