Useful tips for everyday
What is Stdev divided by mean? coefficient of variation The coefficient of variation represents the ratio of the standard deviation to the mean, and it…
Is LDA better than logistic regression? Theory: Logistic Regression Logistic regression has acouple of advantages over LDA and QDA. Since we’re not making any assumptions…
Do you need a regression model for missing data imputation? Regression Imputation assumes that the data is Missing At Random, more about it can be…
How many times do you repeat the k fold cross validator? Repeated K-Fold cross validator. Repeats K-Fold n times with different randomization in each repetition.…
How many data points fit in normal distribution? If there is no error in the points then thee unique points will determine the fit. This…
Why is regularization necessary in linear regression? This is a form of regression, that constrains/ regularizes or shrinks the coefficient estimates towards zero. In other…
What is the interaction term in logistic regression? The interaction term shows whether an effect of one predictor on the response variable depends on (varies)…
How do you know if its theoretical or experimental probability? Theoretical probability is what we expect to happen, where experimental probability is what actually happens…
How do you compare data with different sample sizes? One way to compare the two different size data sets is to divide the large set…
How do you calculate median and survival time? Divide the number of subjects by 2, and round down. In the example 5 ÷ 2 =…