1， unsupported operand type(s) for /: ‘map‘ and ‘int‘
机器学习实战 PCA程序
Traceback (most recent call last): File "<ipython-input-29-808c65c1265e>", line 1, in <module> lowDMat,reconMat=pca.pca(dataMat,1) File "I:\python\PCA\pca.py", line 15, in pca meanVals = mean(dataMat, axis=0)
解决办法：
2 ，TypeError: ufunc ‘isnan‘ not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ‘‘safe‘‘
Traceback (most recent call last): File "<ipython-input-17-945c872e5152>", line 1, in <module> dataMat=pca.replaceNanWithMean() File "I:\python\PCA\pca.py", line 59, in replaceNanWithMean meanVal = mean(datMat[nonzero(~isnan(datMat[:,i].A))[0],i]) TypeError: ufunc ‘isnan‘ not supported for the input types, and the inputs could not be
safely coerced to any supported types according to the casting rule ‘‘safe‘‘
原文：https://www.cnblogs.com/Aaron12/p/9073930.html