Method in R for Performing a Visual Check of the Model Assumptions

Intro Here is a function in R to help you when you visually check that various model assumptions are valid (normality of random effects, normality of residuals, homogeneity of variance, linear relationship, multicollinearity). R Code check_model(x, …) # S3 method for default check_model( x, dot_size = 2, line_size = 0.8, panel = TRUE, check =… Continue reading Method in R for Performing a Visual Check of the Model Assumptions

The Most Important Programming Languages of Data Science in 2021

Data scientists who use massive sets of data or work in high-powered computing environments may see the following coding languages as necessary for making data extraction effortless and fast. The field of data science is focused on pulling insights from data. Take for example the COVID-19 pandemic: Officials in the government were tasked with analyzing… Continue reading The Most Important Programming Languages of Data Science in 2021

R Studio for Beginners

No one beginning point will help everyone, but the following are six methods to start learning R: Install , RStudio, and R packages like the tidyverse. These 3 steps are often confusing at first for some users. For beginner-friendly instructions, we suggest the free online ModernDive chapter Getting Started with R and RStudio. You may… Continue reading R Studio for Beginners

Advice on How to Become a Data Scientist

#1 Career Advice: Understand the Roles and Industries Data science is an all-encompassing field. There are various roles within the field. Some of the predominant ones are: Data scientist: Focus on statistical analysis and research; they also model the algorithm and prototype it for testing. Skilled in programming languages like SQL, Python and R, data… Continue reading Advice on How to Become a Data Scientist

GGPlot2 in R Studio

Overview ggplot2 is a system for declaratively creating graphics, based on The Grammar of Graphics. You provide the data, tell ggplot2 how to map variables to aesthetics, what graphical primitives to use, and it takes care of the details. Installation # The easiest way to get ggplot2 is to install the whole tidyverse: install.packages(“tidyverse”) #… Continue reading GGPlot2 in R Studio

Exploratory Data Analysis in R for beginners (Part 1)

A Step-by-step Approach From Data Importing to Cleaning and Visualization Exploratory Data Analysis (EDA) is the process of analyzing and visualizing the data to get a better understanding of the data and glean insight from it. There are various steps involved when doing EDA but the following are the common steps that a data analyst can… Continue reading Exploratory Data Analysis in R for beginners (Part 1)