Chi-Square Leasqr.m

[aegreen]

I am trying to assess the fit of an exponential equation to a set of data.

I fit the data to an equation using leasqr.m but I want to calculate the
chi-squared value and complete a chi-square test.

if:

f = computed values
y = observed values

I have tried using chisquare_test_homogeneity(f,y,c)

Not sure what c is, so I entered the x array used for leasqr.m

What I receive in return though is:
NaN
NaN
36

36 is the correct degrees of freedom.

What am I missing?

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