Answer by mgilson for Filter numpy array by two conditions. More than one...
python's and looks at the boolean value on either side of the condition. Because of design decisions in numpy, arrays with more than 1 value don't have a boolean value (it raises ValueError as you've...
View ArticleAnswer by John Zwinck for Filter numpy array by two conditions. More than one...
You need to use & instead of and with NumPy arrays:mask = (data[:,0] == ptype) & (data[:,8] <= radius)data[mask,7].sum()
View ArticleFilter numpy array by two conditions. More than one element is ambiguous
I have a numpy array which I need to filter and perform a sum on. Similar to my previous question, although this one needs to be filtered by two conditions.Need to return the sum of column 7 where...
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