Publications by Emmanuel Thompson
Project 3: Continuous Frequency Distribution
Problem: From the World Bank Data, do the following: Construct histograms for Life Expectancy (lifeExp) for each continent and comment briefly on each. Use the rule of thumb ( 5 to 20) to decide on a reasonable number of bars). Below are simple R-code to help you read and subset data by continent. library(readr) world_bank_data <- read_csv("wo...
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Project 2: Categorical Frequency Distribution
Use R/RStudio to work on the following problems from the textbook. Exercises 2–1, Question 13 page 52. Exercises 2–1, Question 14 page 52. Note: Before working on the project, make sure you have reviewed 2.1: Organizing data. Write your code using R Script \((Ctrl + Shift + N)\) and make sure you save your script. Once you are done, test y...
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Visual Display of Data in R
Types of visual displays to be covered Qualitative (Categorical) Data: Bar graph Pie chart Quantitative (Numerical) Data: Histogram Boxplot Data sets used birthwt.csv healthexp.csv Import the data sets library(readr) birthwt <- read_csv("birthwt.csv") expd <- read_csv("healthexp.csv") Structure of data sets str(birthwt) ## Classes 'spec_t...
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Visualizations in R
Visualization using ggplot2 ggplot2 package in R was written by Hadley Wickham for visualizing data. It provides a powerful model of graphics that makes it easy to produce complex multi-layered graphics. We will be using the birthwt data set for visualizations with ggplot2 therefore we first need to import the data set. Import the birthwt.csv a...
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Project 1: Importing Data into RStudio Cloud (Due: Jan 31 on Moodle)
Instructions Uploading a file to a cloud RStudio instance Watch the video on importing files and datasets to RStudio Cloud before doing this project Import the the following datasets to RStudio Cloud: Wholesale_customers_data.csv world_bank.txt sweden_motor_insurance_xlsx Once you are done with the importation for each of the datasets, take a...
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Import Data into R
Introduction Data come in a variety of formats. Depending on the format, R has a specific function and argument. Below, we show how to import data into R for different formats. Importing Files and Datasets to RStudio Cloud (Very Important) Uploading a file to a cloud RStudio instance This video shows you how to import files and datasets into ...
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R & RStudio
Introduction Both R and RStudio are free, open-source software, available for all commonly used operating systems, including Windows, macOS, and Linux systems. Installing R for Windows Go to the Comprehensive R Archive Network (CRAN) and select a mirror site; a list of CRAN mirrors shows up at the upper left of the CRAN home page. I recommend ...
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2.1: Organizing data
Categorical Frequency Distribution # Data grade <- c("C", "A", "B", "C", "D", "F", "B", "B", "A", "C", "C", "F", "C", "B", "D", "A", "C", "C", "C", "F", "C", "C") # Frequency freq <- table(grade) freq ## grade ## A B C D F ## 3 4 10 2 3 \[\mbox{Relative Frequency}=\frac{\mbox{Frequency}}{\mbox{Total Frequency}}\] # Relative ...
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2.2: Visualizing Data (Histogram)
Histogram Histogram for Age options(warn=-1) age <- c(11, 10, 22, 50, 52, 50, 22, 28, 30, 31, 30, 29, 40, 40, 41, 36, 39, 54, 55, 64) min <- min(age) max <- max(age) range <- max - min classes <- 5 class_size <- trunc(range/classes) + 1 class_size ## [1] 11 hist(age, main = "Ages of Chronic Migraine Patients", xlab = "Age in ...
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2.2_2.3: Visualizing Data
Visualizing Data from existing Data in a csv or excel file or txt Histogram of Income from Credit data library(readr) Credit <- read_csv("Credit.csv") ## Parsed with column specification: ## cols( ## id = col_double(), ## Income = col_double(), ## Limit = col_double(), ## Rating = col_double(), ## Cards = col_double(), ## Age = col_d...
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