Useful tips for everyday
Is standardization required for Lasso regression? Lasso regression puts constraints on the size of the coefficients associated to each variable. However, this value will depend…
How to derivation of residual sum of squares? Proof/Derivation of Residual Sum of Squares (Based on Introduction to Statistical Learning) Ask Question Asked6 years, 11…
How do you handle Heteroscedastic data? How to Deal with Heteroscedastic Data Give data that produces a large scatter less weight. Transform the Y variable…
What is the rule of thumb sample size needed in order for the CLT to hold? Sample sizes equal to or greater than 30 are…
What is the most common method to predict the relationship between variables? The Pearson correlation method is the most common method to use for numerical…
What does the subscript I mean in statistics? position indicator Most of the calculations we perform in statistics are repetitive operations on lists of numbers.…
How to calculate ROC for repeated cross validation? Use a proper accuracy score and accompany it with the c -index (concordance probability; AUROC) which is…
What is meant by V1 V2 and V3? At school, students often learn by heart the base, past simple and past participle (sometimes called V1,…
Why do we take the log of data? There are two main reasons to use logarithmic scales in charts and graphs. The first is to…
What is propensity value? 1 – Propensity values describing physical-chemical properties of residues at the interface as estimated in (Nagi and Braun 2007). A value…