Incorrect use if/else

Hi. How can I make the following if/else work ?

cell = {[],[],[]};
cell1 = {rand(1452,2),[],[]};
A = cell{1,1};
B = cell1{1,1};

if A = []
    B(:,2)=[];
else
    ....
end

Answer 1

[Star Strider]

Perhaps this —

cell = {[],[],[]};
cell1 = {rand(1452,2),[],[]};
A = cell{1,1};
B = cell1{1,1};

if isempty(A)
    B(:,2)=[];
else
    % What do you want to do here?
end

B

B = 1452×1

0.4969 0.7029 0.9556 0.4312 0.7830 0.4565 0.6727 0.7772 0.8387 0.8329

.

[Walter Roberson]

Note that matlab uses == for comparisons.

Exception: if you use a comparison in a symbolic expression, especially a piecewise expression, then the visual representation when you display it might use = instead of == . The visual representation of symbolic expressions is not always valid input to matlab or to the internal symbolic engine either.