Publications by Coffy Andrews-Guo
R Character Manipulation and Date Processing
R Character Manipulation and Date Processing Question 1 The 173 majors listed in fivethirtyeight.com’s College Majors dataset [https://fivethirtyeight.com/features/the-economic-guide-to-picking-a-college-major/], was pulled from [https://github.com/fivethirtyeight/data/blob/master/college-majors/majors-list.csv] library(readr) urlfile = "http...
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Lab1
library(tidyverse) library(openintro) Exercise 1 data('arbuthnot') Command to extract just the counts of girls baptized. arbuthnot$girls ## [1] 4683 4457 4102 4590 4839 4820 4928 4605 4457 4952 4784 5332 5200 4910 4617 ## [16] 3997 3919 3395 3536 3181 2746 2722 2840 2908 2959 3179 3349 3382 3289 3013 ## [31] 2781 3247 4107 4803 4881 5681 485...
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Project 2
Project 2 - Group Members Chinedu Onyeka “Datase2” GitHub RPubs Krutika Patel “Human Trafficking” GitHub RPubs Peter Phung “Jiho Kim’s Stock Market Data from India” Github RPubs Candy Hierarchy Data 2017 Load packages # load library library(stringr) library(readr) library(tidyverse) library (tidyr) library(jpeg) library(grid...
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More Practice with JSON
Source Github RPubs Load packages library("jsonlite") library("plyr") library("dplyr") library("httr") library("purrr") Make a request to the API Server In this assignment, The Nobel Prize, JSON data was pulled using the Developer zone API from https://www.nobelprize.org/about/developer-zone-2/. A request for data with a GET function and re...
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Sentiment Analysis
Author: Chinedu Onyeka Collaborators: Coffy Andrews-Guo, Krutika Patel Date: 10/30/2021 Sentiment Analysis Introduction Sentiment Analysis is basically an automated process of determining and analyzing the sentiments (negative, positive, or neutral emotions) from a body of text by use of machine learning techniques. It has a wide range of ap...
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Sample
Drug Use by Age Age Groups Pictures Abstract In the analysis, the data review drug use by age groups over the past 12 months. Drug use has among individuals has risen over the years between prescription and illicit drug. In the article, “How Baby Boomers Get High” compares the overall usage between younger counterparts and individuals over ...
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Matrix
LFulton_Assignment2 PS1 & PS2 Coffy Andrews-Guo 06 February 2022 Problem Set 1 Show that \(A^TA \neq AA^T\) in general. (Proof and demonstration.) For a special type of square matrix \(A\), we get \(A^TA = AA^T\). Under what conditions could this be true? (Hint: The Identity matrix I is an example of such a matrix). Solution to Set 1 Proof No...
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Image Manipulation
Image Manipulation Coffy Andrews-Guo 06 February 2022 Homework Assignment One of the most useful applications for linear algebra in data science is image manipulation. We often need to compress, expand, warp, skew, etc. images. To do so, we left multiply a transformation matrix by each of the point vectors. For this assignment, build the first ...
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D605 Assignment10
Assignment Smith is in jail and has 1 dollar; he can get out on bail if he has 8 dollars. A guard agrees to make a series of bets with him. If Smith bets A dollars, he wins A dollars with probability .4 and loses A dollars with probability .6. (a) he bets 1 dollar each time (timid strategy) Calculation 1 - Manual According to formula of Gambler...
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D605 Assignment11
Regression Model In this weekly discussion, each data set was individually selected to build a regression model and conduct a residual analysis. The analysis will indicate the data linearity for unbiased observations. Heart Failure Prediction Dataset Heart failure due to cardiovascular diseases (CVDs) is one of the top causation of deaths among ...
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