How to compare xcorr and crosscorr in Matlab?

I am comparing two signals where the one is original, while the other one converted by distribution theory. Code where I am not sure about the application of `crosscorr` because its about two univariate, stochastic time series y1 and y2 with confidence bounds

 xc = max(abs(xcorr(u, utp))); % http://stackoverflow.com/a/1275705/54964

 sxc = crosscorr(u, utp);  % https://onlinecourses.science.psu.edu/stat510/node/74

MATLAB: 2016b OS: Debian 8.5 Possibly statistically related: here