_lhscorrelate calculates correlation coefficient incorrectly

[rob5ives]

The correlation coefficient in _lhscorrelate is calculated as: R = np.corrcoef(Hcandidate) According to NumPy documentation, this function expects each row to be a variable; however, lhs treats the columns as variables. The correct way to calculate the correlation coefficient should be: R = np.corrcoef(Hcandidate, rowvar=False)