Publications by Irene Jacob
DATA 607_Project_1
Chess Tournament In this project, you’re given a text file with chess tournament results where the information has some structure. Your job is to create an R Markdown file that generates a .CSV file (that could for example be imported into a SQL database) with the following information for all of the players: Player’s Name, Player’s State, ...
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DATA 607_Assignment_3
1. Using the 173 majors listed in fivethirtyeight.com’s College Majors dataset [https://fivethirtyeight.com/features/the-economic-guide-to-picking-a-college-major/], provide code that identifies the majors that contain either “DATA” or “STATISTICS” Load the data from csv file and identify the majors that contain DATA and STATISTICS maj...
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DATA 607_Project_2
Goal The goal of this assignment is to give you practice in preparing different datasets for downstream analysis work. Your task is to: Choose any three of the “wide” datasets identified in the Week 6 Discussion items. (You may use your own dataset; please don’t use my Sample Post dataset, since that was used in your Week 6 assignment!) For...
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DATA 607_Assignment_7
Goal Pick three of your favorite books on one of your favorite subjects. At least one of the books should have more than one author. For each book, include the title, authors, and two or three other attributes that you find interesting. Take the information that you’ve selected about these three books, and separately create three files which st...
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Data606_Homework 3
Dice rolls If you roll a pair of fair dice, what is the probability of getting a sum of 1? It is not possible to get a sum of 1 when a pair of dice is rolled. The minimum sum possible is 2. getting a sum of 5? It is possible to get a sum of 5 when a pair of dice is rolled. The different possible combinations are: 1 and 4, 2 and 3, 3 and 2, 4 ...
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Data606_Homework 4
Chapter 4 - Distributions of Random Variables Area under the curve, Part I. What percent of a standard normal distribution N(μ = 0, = 1) is found in each region? Be sure to draw a graph. Z < −1.35 pnorm(-1.35) ## [1] 0.08850799 normalPlot(bounds = c(-5,-1.35)) Z > 1.48 1-pnorm(1.48) ## [1] 0.06943662 normalPlot(bounds = c(1.48,5)) −0.4...
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Data606_Homework 5
Heights of adults Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight, height and gender, for 507 physically active individuals. The histogram below shows the sample distribution of heights in centimeters. What is the point estimate for the average height of active indiv...
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Data606_Lab 4
Lab 4 The data library(tidyverse) ## -- Attaching packages --------------------------------------- tidyverse 1.3.0 -- ## v tibble 3.0.4 v purrr 0.3.4 ## v tidyr 1.1.2 v stringr 1.4.0 ## v readr 1.4.0 v forcats 0.5.0 ## Warning: package 'tibble' was built under R version 4.0.3 ## -- Conflicts ---------------------------------...
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DATA 607_Assignment_9
Goal The New York Times web site provides a rich set of APIs, as described here. You’ll need to start by signing up for an API key. Your task is to choose one of the New York Times APIs, construct an interface in R to read in the JSON data, and transform it into an R DataFrame. Register for API Key and Retrieve the Data Read the data having mo...
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DATA 607_Tidyverse_CREATE_Assignment
Goal In this assignment, you’ll practice collaborating around a code project with GitHub. You could consider our collective work as building out a book of examples on how to use TidyVerse functions. GitHub repository: https://github.com/acatlin/FALL2020TIDYVERSE Your task here is to Create an Example. Using one or more TidyVerse packages, and a...
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