Useful tips for everyday
How do you improve regression fit? Here are several options: Add interaction terms to model how two or more independent variables together impact the target…
Is scaling the same as normalizing? So what is the difference between Normalizing and Scaling? Normalization adjusts the values of your numeric data to a…
What is a Sankey diagram good for? Sankey diagrams allow you to show complex processes visually, with a focus on a single aspect or resource…
Are fitted values the same as residuals? The “residuals” in a time series model are what is left over after fitting a model. The residuals…
Does chi-square measure ranks? As ranking variables are categorical variables the chi-squared can be used to test the association among them. But when the number…
What happens when you have a small data set? But when working with small datasets, there is a high risk of noise due to the…
How to test the significance of multiple regression? Figure 1 implements the test described in Property 1 (using the output in Figure 3 and 4…
How do you read variable importance in random forest? The default method to compute variable importance is the mean decrease in impurity (or gini importance)…
Which is the back transformation for log10 ( x )? If you used a log10 (x) transformation, then the back-transformation is 10** (x) . But…
What is consistency in deep learning? Consistency as we define is the ability to reproduce the same predictions across different generations of a model for…