Publications by Jean Jimenez
Data 605 Fall 2023 HW#5
#1 Question (Bayesian). A new test for multinucleoside-resistant (MNR) human immunodeficiency virus type 1 (HIV-1) variants was recently developed. The test maintains 96% sensitivity, meaning that, for those with the disease, it will correctly report “positive” for 96% of them. The test is also 98% specific, meaning that, for those without...
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Data 607 Fall 2023 Week 5 Assignment Version 2
Week 5 Assignment Data Cleanup Work First, I imported the necessary packages to use for this assignment. I had created and saved an ‘airlines.csv’ in the current working directory with the data from the homework. Then, I imported the data set of airlines data. For sake of reproducibility, the csv was uploaded to github and this rmd will ge...
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Data 607 Fall 2023 Week 5 Assignment
Week 5 Assignment Data Cleanup Work First, I imported the necessary packages to use for this assignment. I had created and saved an ‘airlines.csv’ in the current working directory with the data from the homework. Then, I imported the data set of airlines data. For sake of reproducibility, the csv was uploaded to github and this rmd will ge...
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Data 607 Tidyverse Project: Geographic Data visualization
Tidyverse Assignment Overview Tidyverse is a package in R that is a collection of many different tools and functions that help make organizing and visualizing data easier. People usually make R packages to make specific tasks easier to do. For this assignment, I will be demonstrating how to clean and visualize Geographical Data using some Tidy...
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Data 607 Project #1
Project 1 Overview Project 1 assignment was to take a text file and to process it and return a csv. The text file is of chess tournament scores and it is in the format of Chess Ranking System. In this assignment, I will show how I processed the given data set and exported as csv. Work and Thought Process Importing, Reading, and Cleaning The f...
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Data 605 Fall 2023 HW#4
Homework 4 Question With the attached data file, build and visualize eigenimagery that accounts for 80% of the variability. Provide full R code and discussion. The attached data file contained a folder with .jpg images of shoes. Work Preparing the data For this homework, I am using the imager package which has some useful functions fo...
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Data 605 Fall 2023 HW#3
Assignment 3 Problem Set 1 #1 What is the rank of the matrix A? [1 2 3 4] [-1 0 1 3] A= [0 1 -2 1] [5 4 -2 -3] To solve this problem, I inserted matrix A into R and used the rankMatrix() function #what is the rank of matrix A? library(Matrix) A=matrix(c(1,2,3,4,-1,0,1,3),nrow=4,ncol=4) rank_A=rankMatrix(A) rank_A ## [1] 2 ## attr(,"method...
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Data 607 Homework #3
Data 607 Homework #3 #1 Question 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”. Solution First, I imported the csv from the raw github u...
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Data 605 Homework 2 Problem Set 2
Problem Set 2 The second problem for this week’s homework was to create a function that will conduct LU factorization on a square matrix. Function I created a function that does the LU Factorization of any 2x2, 3x3, or 4x4 matrix. My function is called lu_decomp: lu_decomp = function(A) { #Getting the dimensions of matrix n = dim(A)[1]...
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Data607_Homework_2
Data 607 Homework 2 SQL and R Overview This week’s assignment was to survey people about movies. The goal was to use the data collected to practice creating tables/databases in SQL and using R to access the data from SQL. 4 people in the survey are real and 3 people have randomly generated data. Each person was asked to rate the following mo...
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