Error when calling a previously made function in a separate script. Any ideas?

I keep getting an Error when calling a previously made function that was made in a separate script, even when it is on my path. This piece of code performs a multiple regression iterative search task with 3 parameters.

Here is the original function that gets called later(Both original function script and the other Script it is being called in are attached) I created the function that is being called myself.

Open each attachment separately and run iterative search script to see error.

[Walter Roberson]

The opening comments say

% Function for fitting a multiple regression model to a set of data. Data should
% be in the form of a matrix, with column 1 as params1, column 2 as params2 and column 3
% as params 3.

But the code expects Data to be a table() object, not an array.

[Reece Nasse]

So your suggesting I turn my data back into a table First?

[Reece Nasse]

 Curve = MultipleRegression([Bestparams1,Bestparams2,Bestparams3],WR)

This is the line of code where the other function is called and this is where it stops running.

[Walter Roberson]

The function needs White blood cell count as well as red blood cell count. It ignores all other table properties.

[Reece Nasse]

So how should it look then? Are you referring to this line of code being changed or the original function? It may seem like a stupid question but I am new to using matlab and this is only the second piece of code ive ever written. Thanks.

Answer 1

[Ameer Hamza]

The problem is caused by this line

WR = table(RedBloodCellCount,MeanWBCM30,'variablenames',{'RedBloodCellCount','MeanWBCM30'});% 2 previosly defined varibles are put into a table.

The function MultipleRegression require tables with field WhiteBloodCellCount and RedBloodCellCount, which the table WR does not contain. Change the 2nd variable name to WhiteBloodCellCount and it will give no syntax error.

WR = table(RedBloodCellCount,MeanWBCM30,'variablenames',{'RedBloodCellCount','WhiteBloodCellCount'});% 2 previosly defined varibles are put into a table.

*** "the following passage is just a suggestion based on observing your code, you may ignore it if you are sure about what you are doing."

It appears that you are making a logical mistake in your code. The new table WR contain the same value for WhiteBloodCellCount, so it might not be a good way to evaluate the performance of [Bestparams1, Bestparams2, Bestparams3]. It might be better to compare the parameters based on the original Data table as follow

Curve = MultipleRegression([Bestparams1,Bestparams2,Bestparams3], Data);

Also as I mentioned in Answer to your previous question, the line

SSD = A(:,3)-SimulatedY.^2; %calculate squared deviations at each data point in column 3 of data table (the row labelled IQ). Column 3 represents Y values.

is definitely wrong which is also indicated by your comment after the line. The correct is

SSD = (A(:,3)-SimulatedY).^2;

Hope this will help.

[Reece Nasse]

Thank you very much, I changed the line relating to SSD and the name of the table, my script ran fine and produced my graph when I called the function.

[Ameer Hamza]

You are welcome.