## Category: Learn R

### R Basics

- Working with Sets in R
- Create and Graph Intervals in R
- How to Solve an Equation in R
- Solve a Polynomial in R
- Writing Custom Functions in R
- Find the Line Equation From 2 Points in R
- How to Plot a Quadratic Function in R
- Coding and Plotting a Piecewise Function in R
- Plot a Step Function in Base R and ggplot2
- Write a Function that Returns the nth Fibonacci Number in R
- Find the Minimum and Maximum of a Function in R
- Modulo Operator (%%) in R: Explained + Practical Examples
- Convert Columns to Rows in R
- Plot Median and Interquartile Range in R
- Join Dataframes In R: Left/Right/Inner/Full Joins
- Easiest Way to Plot Data on a Map in R (Using ggmap)

### Descriptive Statistics in R

- How to Describe/Summarize Categorical Data in R (Example)
- How to Describe/Summarize Numerical Data in R (Example)
- How to Summarize Data In R (Using Dplyr)

### Data Modeling in R

- How to Check Linear Regression Assumptions in R
- How to Deal with Multicollinearity in R
- Linear Regression in R (with a Categorical Variable)
- Interpret Linear Regression Output in R
- Linear Regression with Interaction in R
- Logistic Regression in R (with Categorical Variables)
- How to Run and Interpret a Logistic Regression Model in R
- Plot Logistic Regression Decision Boundary in R
- Stepwise (Linear & Logistic) Regression in R
- Run and Interpret Ordinal Logistic Regression in R
- Run and Interpret a Mixed Model in R
- Modeling using the
*tidymodels*package:

### Text Analysis in R

- Download and Analyze PubMed Articles in R (Example)
- Extract Numbers from Strings in R
- Using pivot_longer with names_sep and names_pattern in R
- Extract p-values from Text in R: Using separate_wider_regex()
- Extract Multiple Occurrences of a Pattern in a String in R