Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

I got invalid expression on my code, I have no idea what I did wrong.

This is the error:

File: getCriticalValue.m Line: 10 Column: 69

Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched

delimiters.

Error in myKurtosis (line 30)

if (getKurtosis(DataSetCal, i, c1) > getCriticalValue(c1(:)))

This is the code:

function myKurtosis
    A = input('Enter File Name: ', 's');
    FileName = strcat(A,'.txt');
    
    % Data needs to be cleaned first where we put only one space in between and
    % split the data using delimiter
    opts = detectImportOptions(FileName);
    opts.VariableNamingRule = 'preserve'; % Preserve original column headers
    Data = readtable(FileName, opts);
    Data2 = table2array(Data);
    row = height(Data2);
    Outliers = [];
    
    for i = 1:14
        OutCount = 0; % Corrected typo (OutCOunt -> OutCount)
        c1 = 0;
        c2 = 1;
        DataSetCal = zeros(15, 14); % Initialize DataSetCal
        for j = 1:row
            % Add data to a dataset to be checked for kurtosis calculation
            c1 = c1 + 1;
            DataSetCal(c1, i) = Data2(j, i); % Assuming each column contains the data for one variable
            
            % Calculate kurtosis value
            kurtosisVal(j, i) = getKurtosis(DataSetCal, i, c1);
            
            % Compare the kurtosis value with the critical value stored and remove data if exceeded
            if (getKurtosis(DataSetCal, i, c1) > getCriticalValue(c1(:)))
                OutCount = OutCount + 1;
                Outliers(OutCount, i) = Data2(j, i);
                c1 = c1 - 1;
            else
                % Store value of kurtosis that will be used for visualization
                % of data with outliers removed
                NewKurtosis(c2, i) = kurtosisVal(j, i);
            end
        end
        
        % Used to find end limit for visualization purposes
        NewKurtosis(c2, i) = -1;
    end
    save 'New'
end

[VBBV]

You have getCriticalValue both as filename.m and also as variable inside the called function. Rename the filename to something different and try again

[Voss]

The error is in getCriticalValue.m, which is not shown. Please share the code for getCriticalValue.m.

[John D'Errico]

This is what you show as the error message:

File: getCriticalValue.m Line: 10 Column: 69
Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched
delimiters.
Error in myKurtosis (line 30)
if (getKurtosis(DataSetCal, i, c1) > getCriticalValue(c1(:)))

What does that mean? The error was seen in the function myKurtosis, but it does not actually happen there. The actual error happens in line 10 of the function getCriticalValue, where there is an invalid expression. But you don't show that function.

Voss is correct. Show that code.