histcountsmex undefined (version R2017b)

Hi, There was an error when I was running my code: The function 'histcountsmex' corresponding to the input parameter of type 'double' is not defined. I've updated my matlab version to 2017b but the function is still missing. What should I do?

[Eric]

I searched MATLAB documentation for 'histcountsmex', and it appears it is not a MATLAB function. Are you sure you have the function name correct? Is this a function that you or somebody else wrote?

[per isakson]

• In older releases histcountsmex was called by histcounts. The function was not documented and thus it may be changed or removed without notice.
• By which function was histcountsmex called when this error happened?

[Walter Roberson]

histcountsmex is still called by histcounts. It is near line 280 in R2017b.

Answer 1

[Walter Roberson]

In R2014b and R2015a, histcountsmex was an actual mex such as histcountsmex.mexmaci64 . In R2015a through R2017b (newest), it is histcountsmex.p . In all cases, it was in the toolbox/matlab/datafun/private directory -- for example /applications/MATLAB_R2017b.app/toolbox/matlab/datafun/private/histcountsmex.p on Mac.