How would one check for installed MATLAB toolboxes in a script/function?

Question

How would one check for installed MATLAB toolboxes in a script/function? (checking toolbox versions would also be good!) This could provide a quick and useful error messag

Answer 1

Ver seems like the way to go, and parsing shouldn't be that hard. Let's see:

function tf = areTheseToolboxesInstalled(requiredToolboxes)
%ARETHESETOOLBOXESINSTALLED takes a cell array of toolbox names and checks whether they are currently installed
% SYNOPSIS tf = areTheseToolboxesInstalled(requiredToolboxes)
%
% INPUT requiredToolboxes: cell array with toolbox names to test for. Eg. 
%        {'MATLAB','Image Processing Toolbox'}
%
% OUTPUT tf: true or false if the required toolboxes are installed or not
%%%%%%%%%%%%%%%%%%%%%%%%%%

% get all installed toolbox names
v = ver;
% collect the names in a cell array
[installedToolboxes{1:length(v)}] = deal(v.Name);

% check 
tf = all(ismember(requiredToolboxes,installedToolboxes));

By the way, if you need to check for versions, verLessThan is your friend.