Removing columns containing zeros

I have a 2x500 matrix containing data. Some columns contain only zeros and I need to remove these (forming, say, a 2x460 matrix when 40 columns contained zeros).

Similar questions have been asked and answered about cell arrays which give commands such as:

m = m(cellfun(@ischar,m(:,1)),:);

These commands produce the error 'Input #2 expected to be a cell array, was double instead' when I use my matrix in place of 'm'

Answer 1

[Torsten]

m=m(:,any(m))

Best wishes

Torsten.

[Oliver Vavasour]

Perfect solution, thank you

Answer 2

[Andy]

If you've got a table w/ various variable names that you want to keep, you might do:

function pTable = aRemoveZeroTableColumns(primersTable)
%
%
%
    pTable = primersTable;
    indexes = [];
    for i = 1:numel(primersTable.Properties.VariableNames)
        column = primersTable{:,i};
        if all(column == 0)
            indexes = [indexes, i];
        end
    end

      pTable(:,indexes) = [];
  end