New Problem: Calculate R-squared (Coefficient of Determination)

[rittik9]

Problem Description

This problem will test the implementation of the R-squared (R²) coefficient, a fundamental statistical measure used to evaluate the goodness of fit in regression models.

Importance

The R-squared coefficient (coefficient of determination) measures how well a regression model fits the observed data. It represents the proportion of variance in the dependent variable that is predictable from the independent variable(s).

Mathematical Definition

R² is calculated as:
R² = 1 - (SSR/SST)

Where,

• SSR = Sum of Squared Residuals
• SST = Total Sum of Squares

Reference:

https://www.ncl.ac.uk/webtemplate/ask-assets/external/maths-resources/statistics/regression-and-correlation/coefficient-of-determination-r-squared.html

[moe18]

all yours

[rittik9]

pls let me know the problem no.

[moe18]

You could use 70, I am going to refactor at some point and fix up the ids but for now just use 70

[rittik9]

pr
here is the pr for the issue