if you run F Zero you will get [2 5], I want to delete the column number 2 and 5 from the Matrix W, but the problem is when I'm deleting the columns it deletes number 2 and 6

clc;
clear;
W=rand(6)
Pt=10;
Pn=[2 7 3 2 8 4];

 P = waterfill(Pt,Pn);
  F_Zero=find(~P) %Find Zeros

%% delete the columns 
      if (~isempty(F_Zero)) %There is Zeros (not empty) 
       for i=1:length(F_Zero) % Loop to Set Columns to Zeros 
       C_Zero=F_Zero(i); 
       W(:,C_Zero) = []
       end
      end

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[KSSV]

When you are using a loop the ddimension of W changes and it removes the column in the newly obtained W. You need not to use loop. remove columns at once.

clc;
clear;
W=rand(6) ;
Pt=10;
Pn=[2 7 3 2 8 4];

P = waterfill(Pt,Pn);
F_Zero=find(~P) %Find Zeros

%% delete the columns
if (~isempty(F_Zero)) %There is Zeros (not empty)
    W(:,F_Zero) = [] ;
end

[Matthew Worker]

I need to remove them one by one for a reason can you show me how

[KSSV]

W=rand(6) ;
Pt=10;
Pn=[2 7 3 2 8 4];

P = waterfill(Pt,Pn);
F_Zero=find(~P) ; %Find Zeros
W0 = W ;
P0 = P ;
%% delete the columns
if (~isempty(F_Zero)) %There is Zeros (not empty)
    for i=1:length(F_Zero) % Loop to Set Columns to Zeros
        C_Zero = find(P0==0,1,'first') ;
        if ~isempty(C_Zero)
            W(:,C_Zero) = [] ;
            P0(C_Zero) = [] ;
        end
    end
end

[Matthew Worker]

Thank you, but you didn't use W0.

[KSSV]

I kept it for checking later whether columns deleted properly or not. You may remove this.