Fixed bug with default parameters NFFT and noverlap in specgram()#7845

Merged

efiring merged 3 commits intomatplotlib:masterfrom

DietBru:specgram_overlap_err

Jan 17, 2017

Commits on Jan 16, 2017

Fixed bug with default parameters NFFT and noverlap ins specgram()
DietBru
committed
Added warning to mlab.specgram() to fix Bug #6064
DietBru
committed
Set defaults for NFFT and noverlap function wide in _axes.specgram() and mlab.specgram().
DietBru
committed