MATLAB: What is the easiest programmatic test of whether a particular toolbox is installed

toolbox detection

For example, to test whether the Image Processing Toolbox is installed, I might do as follows,

   tf=false;
   try
     s=toolboxdir('images');
     tf=true;   
   end

But is there a more graceful way? And where would I find a master list of the string/keyword correspond to the different toolboxes?

Best Answer

Use "ver" to determine if it is installed. Use license() to determine whether you can get a license for it.

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MATLAB: In the gui3 , i want to break loop when i close the gui figure window

You can write a small function that tests if the object still exists. Unfortunately, exist and isobject don't solve this for you.

if isdeleted(handles.figure1)
    break;
end
function tf=isdeleted(h)
tf=false;
try
    get(h);
catch ME
    if strcmp(ME.identifier,'MATLAB:class:InvalidHandle')
        tf=true;
    end
end
end

MATLAB: Problem 10 of MATLAB cody challenge

There are a few problems with your solution:

You need to return true/false - not as string
You compare values to be bigger or equal -> [1 1 1] is not increasing, but your solution return true
Your solution wont work with single values, because x(i+1) does not exist

A working solution based on your approach might look like this:

 if length(x)==1
     tf=true;
 else
    i=1;
while i<length(x)
    if x(i)<x(i+1)
        tf=true;
    else
        tf=false;
        break;
    end
    %
    i=i+1;
end
end

Best Answer

Related Solutions

MATLAB: In the gui3 , i want to break loop when i close the gui figure window

MATLAB: Problem 10 of MATLAB cody challenge

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