Questions tagged [goodness-of-fit]
The goodness-of-fit tag has no usage guidance.
5
questions
0
votes
0
answers
8
views
Goodness on test or train set?
I split my data set before on train (80%) and test (20%) splits. Trained logistic regression model on the train set. Now, want to check the goodness of fit using the Chi-square likelihood omnibus test,...
2
votes
1
answer
65
views
Why Should There Be Multiple Columns in Train Labels for One Model?
Going through the notebook on well known kaggle competition of favorita sales forecasting.
One puzzle is, after the data is split for train and testing, it seems ...
3
votes
1
answer
203
views
SAS Studio seems to imply that apparently non-normal data is normal
I have some data I'm trying to analyze in SAS Studio (university edition). I am using the Distribution Analysis feature to try to test some data for normality.
It gives me the following histogram:
...
0
votes
0
answers
53
views
Scipy kstest problem
I am fitting mixture models to data and assessing how mixtures with more or less components will fit the data. To do this, I am going to plot the cdf of the empirical data and the cdf of my mixture ...
1
vote
1
answer
87
views
Does statsmodels compute R2 and other metrics on a validation-/test- set?
Does statsmodels compute R2 and other metrics on a validation set?
I am using the OLS from the statsmodels.api
when printing summary, an r2 and r2_asjusted are ...