Reconstruct. This could only be utilised In case you have only one dtype for all columns. Or else, you can end up with dtype object for all columns and changing them again necessitates more dictionary perform. CowperKettleCowperKettle 36.7k1818 gold badges137137 silver badges235235 bronze badges two Took me some time to https://davidr540ucd9.jasperwiki.com/user