have upcoef and downcoef raise a ValueError on data with more than 1 dimension
have upcoef and downcoef raise a ValueError on data with more than 1 dimension

grlee77/pywt,rgommers/pywt,PyWavelets/pywt,PyWavelets/pywt,grlee77/pywt,rgommers/pywt,rgommers/pywt,rgommers/pywt