Publications by KoohPi
DATA607 2nd Project
Data preparation The purpose of this assignment is to gain practice in preparing different datasets for downstream analysis. The project consists of three main steps, and this R Markdown document follows the steps as requested. #1: Dataset Selection and Import: I have chosen three datasets: cancer-poverty, consumer index, and air quality. These...
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DATA607 5th Week Assignment
Assignment – Tidying and Transforming Data The goal of this week’s assignment is to work with data structures and utilize tidyverse and dplyr for data manipulation. We will focus on both wide and tall tables, practicing the transformation of data from one format to another. The assignment comprises Three sections, and this R-Markdown documen...
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DATA606 LAB3
The Hot Hand Basketball players who make several baskets in succession are described as having a hot hand. Fans and players have long believed in the hot hand phenomenon, which refutes the assumption that each shot is independent of the next. However, a 1985 paper by Gilovich, Vallone, and Tversky collected evidence that contradicted this beli...
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DATA607 Extra Credit - Elo Rating
The goal of this extra credit 2 Chess ELO calculations Based on the difference in ratings between the chess players and each of their opponents in our Project 1 tournament, calculate each player’s expected score (e.g., 4.3) and the difference from their actual score (e.g., 4.0). List the five players who most overperformed relative to their e...
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DATA607 1ST Project
R Markdown This is a week 4 project 1, working with strings. The project is explained below after the initialization section. Code Initialization In the first section of the code like, I ensure all the relevant packages are installed and libraries are loaded. ## [1] "All required packages are installed" Project 1: description In this project, W...
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DATA606 LAB2
Some define statistics as the field that focuses on turning information into knowledge. The first step in that process is to summarize and describe the raw information – the data. In this lab we explore flights, specifically a random sample of domestic flights that departed from the three major New York City airports in 2013. We will generat...
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Extra Credit 1
R Markdown First let’s donwlaod the data from the source. #LaodData library('RCurl') library(tidyverse) ## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ── ## ✔ dplyr 1.1.4 ✔ readr 2.1.5 ## ✔ forcats 1.0.0 ✔ stringr 1.5.1 ## �...
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3rd Week Assignment, Text manipulation
R Markdown This is a week 3 assignment, working with strings. The assignment has four different sections each will be presented below separately. 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 ma...
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DATA607 2nd Assignment
What and Why In this assignment, we have been asked to choose 6 popular movies and rate them. We also have to ask at least five people to rate each of these movies on a scale of 1 to 5. Then, we have to store the ratings in a SQL database and load the information from the SQL database. The goal is to learn SQL and SQL queries, and how to work w...
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DATA606-Lab1
The RStudio Interface The goal of this lab is to introduce you to R and RStudio, which you’ll be using throughout the course both to learn the statistical concepts discussed in the course and to analyze real data and come to informed conclusions. To clarify which is which: R is the name of the programming language itself and RStudio is a conv...
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