Tech Notes

My notes on Statistics, Big Data, Cloud Computing, Cyber Security

Tag Archives: linear regression

Prediction with Regression

Prediction with Linear Regression

Do the Linear Regression as mentioned in the post Linear Regression on a training set (data frame)and get a linear model and using that model, do the prediction Read more of this post

ANOVA

Analysis of variance

  • Used to compare differences of means among more than 2 groups.
  • Compares the amount of variation between groups with the amount of variation within groups.
  • Is a method to compare multiple linear models Read more of this post

Linear Regression, Covariance and Correlation

Linear regression is the relation between variables when the regression equation is linear: e.g., y = ax + b

Linear regression – basic assumptions

  • Variance is constant
  • You are summarizing a linear trend
  • You have all the right terms in the model
  • There are no big outliers Read more of this post