p value generated by scipy.stats.chi2_contingency for independence testing Question: For testing if two features are independent or not, H0: A and B are independent H1: A and B are dependent p < 0.05, then A and B are dependent Upon trying the following code, where it is very clear that the two arrays are dependent(they …
How to get feature names corresponding to scores for chi square feature selection in scikit Question: I am using Scikit for feature selection, but I want to get the score values for all the unigrams in the text. I get the scores, but I how do I map these to actual feature names. from sklearn.feature_extraction.text …
Is there a python equivalent of R's qchisq function? Question: The R qchisq function converts a p-value and number of degrees of freedom to the corresponding chi-squared value. Is there a Python library that has an equivalent? I’ve looked around in SciPy without finding anything. Asked By: jveldridge || Source Answers: It’s scipy.stats.chi2.ppf – Percent …
P-value from Chi sq test statistic in Python Question: I have computed a test statistic that is distributed as a chi square with 1 degree of freedom, and want to find out what P-value this corresponds to using python. I’m a python and maths/stats newbie so I think what I want here is the probability …
