plot(...,xtitle=None) results in the title being "None'
This is fixed, checking for None for string-type parameters.
This caused some problems with plotSymbol=None, which used code that happened to work because "None" was in the enumeration.
This is fixed, checking for None for string-type parameters.
This caused some problems with plotSymbol=None, which used code that happened to work because "None" was in the enumeration.