Useful tips for everyday
What are the units of the real interest rate? The real interest rate is the nominal rate of interest minus inflation, which can be expressed…
What is a partial dependence plot in randomForest? partialPlot: Partial dependence plot In randomForest: Breiman and Cutler’s Random Forests for Classification and Regression. Description. Partial…
What is circular standard deviation? So, in words, the circular standard deviation is the standard deviation of the normal distribution that, when wrapped, produces a…
Is linear regression sensitive to outliers if yes why if no why? It is sensitive to outliers and poor quality data—in the real world, data…
How do you compare mean and median in statistics? The Difference Between Mean and Median The mean is the average you already know: just add…
How are Loglinear Models and glmS related? They are related in a sense that the loglinear models are more general than logit models, and some…
How big should sample groups be? A good maximum sample size is usually around 10% of the population, as long as this does not exceed…
How to choose a classifier after cross validation? Here comes a common confusion in terms: we commongly refer to model selection, thinking that the model…
How do you derive standard error from variance? First, take the square of the difference between each data point and the sample mean, finding the…
Can population be estimated from a sample? A point estimate of the population proportion is given by the sample proportion. With knowledge of the sampling…