Basic LFP characterization

[xingong6]

When running the basic LFP characterization, I get into the bug due to the inexistence of function array2stringCell, error message as below. May I know how to get this function? Thanks!

"
Undefined function 'array2stringCell' for input arguments of type 'double'.

Error in plotLFPpower (line 31)
hleg = legend(array2stringCell(marginalChans*10));

Error in Spikes_at_certrain_timepoint (line 68)
plotLFPpower(F, allPowerEst, dispRange, marginalChans, freqBands);