05.17.2021
How to Get Started with ggplot2 in R
Intro The library ggplot extends the normal graphics library in R greatly…
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05.16.2021
ggplot2 aes Function in R
Intro The function is a method in ggplot2 called an Aesthetic Mapping…
05.15.2021
How to Calculate Quantiles for Distributions in R
Intro The quantile is the value of X such that P(X <= x) = p. In a previous…
05.14.2021
How to Calculate Probabilities for Continuous Distributions in R
To calculate probabilities for continuous distributions, you need to use…
05.13.2021
Discrete Distributions in R
Two common probabilities you will calculate in statistics is P(X = x) and P…
05.12.2021
Combinations and Permutations in R
Intro Combinatorics is one of the cornerstones of mathematics. Many…
05.11.2021
How to use T-test in R to Compare Means
Introduction One common test on samples is the mean test. The t-test is…
05.10.2021
How to Set Seed in R
Introduction When simulating data or generating random numbers, it is often…
05.09.2021
How to Stack Columns in R
Intro Stacking allows you to combine multiple vectors into a single vector…
05.08.2021
How to Normalize or Create Z-Scores in R
Often you would like to compare variables that have different ranges. For…
05.07.2021
How to Test Independence Categorical Variables in R
Let's say we have a survey of students stating if they liked a class and if…
05.06.2021
How to Generate Combinations in R
Generating combinations is a common task when building websties and…
05.05.2021
How to Create Count Tables and Contingency Tables in R
When dealing with one more more factor, it is often needed to view the…
05.04.2021
How to Generate Random Variables from Popular Distributions in R
R provides many features for generating random numbers, especially compared…
05.03.2021
How to update all your NPM packages at once
You come back to a 6-month-old project that you haven't touched in a while…
05.03.2021
How to Summarize Data in R
When working with statitics, there are many common stats you would like to…
05.01.2021
How to Generate a Random Sample in R
Generating a random sample is a common task in statistics. You use random…
04.30.2021
How to Create a Sequence of Dates in R
R provides a simple way to create sequences of dates. Using the generic…
04.29.2021
How to Add Commento (or other Comments) to Gatsby
Recently, I wanted to add comments to by Gatsby site. I found this open…
04.29.2021
How to Extract Year, Month, Day and Other Parts from a Date in R
Once you have a date object, it is often helpful to extract the year, month…