Useful tips for everyday
Can I create a Read replica of another Read replica? You can now create a second-tier Read Replica from an existing first-tier Read Replica. By…
What is the linear regression equation called? A linear regression line has an equation of the form Y = a + bX, where X is…
What is Markov switching model? Markov switching models are a family of models that introduces time variation in the parameters in the form of their…
Does random forest reduce overfitting? Random Forests do not overfit. The testing performance of Random Forests does not decrease (due to overfitting) as the number…
Can sklearn handle missing values? Missing values can be imputed with a provided constant value, or using the statistics (mean, median or most frequent) of…
How does Spark MLlib work with linear regression? Linear regression. The interface for working with linear regression models and model summaries is similar to the…
Why is MSE divided 2? It is simple. It is because when you take the derivative of the cost function, that is used in updating…
Can MAE be greater than RMSE? MAE will never be higher than RMSE because of the way they are calculated. They only make sense in…
How do you know which variables to use in regression? When building a linear or logistic regression model, you should consider including: Variables that are…
How do you perform a sentiment analysis on a tweet? Performing sentiment analysis on Twitter data involves five steps: Gather relevant Twitter data….3. Create a…