Problems Using Financial Toolbox "maxdrawdown" Function

If I use the Financial Toolbox maxdrawdown.m function with a 1 input/ 1 output case it runs without a problem. I use the FundMarketCash data set embeded in the Financial Toolbox. Here is the case that works.

load FundMarketCash
MaxDD = maxdrawdown(TestData)

MaxDD =

   -0.1658   -0.3381         0

Now if I try to increase the number of inputs and outputs I get the following error

[MaxDD, MaxDDIndex] = maxdrawdown(TestData, 'arithmetic');
Error using maxdrawdown
Too many input arguments.

I thought perhaps I needed to change the input TestData to returns rather than the tick values. But stilll got an error message.

TestData2 = tick2ret(TestData);  
[MaxDD, MaxDDIndex] = maxdrawdown(TestData2, 'arithmetic');
Error using maxdrawdown
Too many input arguments.

Finally I tried just not using the arithemetic format but with two output variables. Again got an error message but this time too many output variables.

[MaxDD, MaxDDIndex] = maxdrawdown(TestData);
Error using maxdrawdown
Too many output arguments.

[Urmila Rajpurohith]

The above issue is not reproducible in 2019b.can I know which version of MATLAB you are using?

[Michael Muhle]

Hi Umila,

I was just getting ready to comment on this. One of the Matlab Central files I had downloaded before also had a file called maxdrawdown. Once I renamed the duplicate file everything worked fine. First time using Matlab Answers and really like it.