sm
import statsmodels.api as sm
scikit learn linear regression
from sklearn.linear_model import LinearRegression
format numeric axis for plots
from matplotlib.ticker import PercentFormatter
sklearn feature selection
from sklearn.feature_selection import f_regression
sklearn scaler. code and what does it do?
from sklearn.preprocessing import StandardScaler # (subtract mean) / std
sklearn split training and test
from sklearn.model_selection import train_test_split
check for multicollinearity
from statsmodels.stats.outliers_influence import variance_inflation_factor
fix for logistic regression from statsmodels
from scipy import stats
stats.chisqprob = lambda chisq, df: stats.chi2.sf(chisq, df)
sklearn kmeans
from sklearn.cluster import KMeans