Hi Nan Sun,
I understand that you wish to pass 'flag = 0' as an input argument to the function "kurtosis" inside the function called "varfun."
This can be done by parameterizing the function call. I have shown this in the following example -
% Correct for Bias in Sample Kurtosis
% For an input vector, correct for bias in the calculation of kurtosis by specifying the flag input argument.
% Set the random seed for reproducibility of the results.
rng('default')
% Generate a vector of length 10.
GEAR = randn(10,1);
% Find the biased kurtosis of x. By default, kurtosis sets the value of flag to 1 for computing the biased kurtosis.
k1 = kurtosis(GEAR) % flag is 1 by default
% Find the bias-corrected kurtosis of x by setting the value of flag to 0.
k2 = kurtosis(GEAR,0) %flag is set to 0
% Finding the kurtosis by passing 0 as flag using parameterizzation of functions.
tailedness_GEAR = varfun(@(x) kurtosis(x,0), table(GEAR),"InputVariables", @isnumeric)
Also, the input table 'GEAR' is allowed as a table or timetable.
