Useful tips for everyday
What is quantile regression model? Quantiles are points in a distribution that relates to the rank order of values in that distribution. Quantile regression is…
Can you do regression with discrete variables? If you have a discrete variable, you can decide whether to treat it as a continuous or categorical…
How do you handle informative censoring? Several methods have been described to deal with the problem of informative censoring. These include imputation techniques for missing…
What can be used to compare two continuously changing variables? The t-test is commonly used in statistical analysis. It is an appropriate method for comparing…
How do you calculate conditional expectation of X given Y? The conditional expectation, E(X |Y = y), is a number depending on y. If Y…
How are GARCH models different from one step forecasts? long run average variance than the one step forecast and ultimately, the distant horizon forecast is…
How do you measure ROI on marketing spend? Calculating Simple ROI You take the sales growth from that business or product line, subtract the marketing…
How does Numpy STD work? The numpy module of Python provides a function called numpy. std(), used to compute the standard deviation along the specified…
Why are counterfactuals important in research? The counterfactual concept is the basis of causal thinking in epidemiology and related fields. It provides the framework for…
What is the coefficient in polynomials? The coefficient is the number that is being multiplied by a variable. If you see 12x, the x is…