Autocorrelation function of data show now points in plot

I am having a problem with autocorr function.When i take autocorr of series it shows no data on a graph.Can anyone help me why plot is showing no data?

[Image Analyst]

Yes, we almost certainly can, provided you show us your code. What function did you call to do the autocorrelation? What function did you call to do the display of the results?

[Nabeel Ali]

I am using autocorr function of matlab

[Jos (10584)]

I do not have a function by the name "autocorr". Which toolbox is it in?

Answer 1

[Jos (10584)]

Are there Nans in your input?

A = 1:10, A(4) = NaN
B = xcorr(A) % → all NaNs