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  1. Why are regression problems called "regression" problems?

    I was just wondering why regression problems are called "regression" problems. What is the story behind the name? One definition for regression: "Relapse to a less perfect or developed state."

  2. regression - What does it mean to regress a variable against another ...

    Dec 4, 2014 · When we say, to regress Y Y against X X, do we mean that X X is the independent variable and Y the dependent variable? i.e. Y = aX + b Y = a X + b.

  3. How should outliers be dealt with in linear regression analysis ...

    What statistical tests or rules of thumb can be used as a basis for excluding outliers in linear regression analysis? Are there any special considerations for multilinear regression?

  4. How to describe or visualize a multiple linear regression model

    I'm trying to fit a multiple linear regression model to my data with couple of input parameters, say 3.

  5. regression - When is R squared negative? - Cross Validated

    With linear regression with no constraints, R2 R 2 must be positive (or zero) and equals the square of the correlation coefficient, r r. A negative R2 R 2 is only possible with linear regression when either …

  6. Can I merge multiple linear regressions into one regression?

    Oct 3, 2021 · Although one can compute a single regression for all data points, if you include model assumptions such as i.i.d. normal errors, the model for all points combined can't be "correct" if the …

  7. What's the difference between logistic regression and perceptron?

    Jul 20, 2015 · 4 You can use logistic regression to build a perceptron. The logistic regression uses logistic function to build the output from a given inputs. Logistic function produces a smooth output …

  8. In linear regression, when is it appropriate to use the log of an ...

    Aug 24, 2021 · This is because any regression coefficients involving the original variable - whether it is the dependent or the independent variable - will have a percentage point change interpretation.

  9. Transforming variables for multiple regression in R

    I am trying to perform a multiple regression in R. However, my dependent variable has the following plot: Here is a scatterplot matrix with all my variables (WAR is the dependent variable): I know ...

  10. Why use linear regression instead of average y per x

    Mar 23, 2017 · Wow. So why bother going through the linear regression formulas if you can just divide the mean of y with the mean of x?