Useful R Functions

Project Overview

A collection of R functions that make certain calculations simpler. Built on top of pre-existing R functions. Copy + Paste into RStudio or similar. (File on GitHub link Above)

Functions For Calculating:

- Standard Error for Sample Proportions/Means/Independent Groups

- Test Statistic for Sample Proportions/Means (unknown SD)/Independent Groups/Dependent Groups

- Test Statistic for Analysis of Variance

- Confidence intervals for Sample Proportion (with + without SE)

- Confidence intervals for Sample Means (with + without SE, known/unknown population SD)

- Confidence intervals for Independent Groups

- Margin of Error (from Confidence Level)

- Minimum Sample size given margin of error

- Regression Line Model Slope + Intercepts

Development/Implementation

These were developed as I found certain calculations tedious, with no simpler way of calculating them with R, or in-built R calcuations gave excess superfluous information. Since I was already using R as a tool in many of these calcuations, I wrote these functions to automate the entire calcuations.