which allows you to select or exclude rows or columns of a data structure based on logical expressions. In this article, you will learn how to use boolean indexing or masking in Python with pandas ...

As well as checking the condition of the Boolean expression in line 2, this program also checks the condition of the Boolean expression in line 4: Boolean logic does not just work with numbers.

I recently switched to using python 2.5 from 2.4 ... false_value </pre><BR>Evaluation is still lazy as in existing Boolean expressions, so the order of evaluation jumps around a bit.

This is achieved by reasoning over Boolean expressions. We have implemented a prototype in Python and empirically evaluated its performance on three different benchmarks: TCAS, QuixBugs and the ...