Publications by Gabriella Martinez
DATA607 Project 1
library(stringr) library(knitr) library(tidyverse) library(dplyr) library(rstudioapi) library(googledrive) Load Data In order to load the data from Blackboard and into R, the txt file was downloaded and then saved to my GitHub account in order to ensure reproducibility. https://github.com/gabbypaola/DATA-607/blob/main/tournamentinfo.txt che...
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DATA607 HW10
Assignment Overview Re-create and analyze primary code from Text Mining with R 1. Provide citation to text book, using a standard citation syntax like APA or MLA. Identify and implement a different corpus to perform sentiment analysis. Identify and implement an additional lexicon for sentiment analysis. Packages library(RCurl) library(tidyverse...
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DATA607 Project 3
Which are the most valued data science skills? Assignment Requirements This is a project for your entire class section to work on together, since being able to work effectively on a virtual team is a key “soft skill” for data scientists. Please note especially the requirement about making a presentation during our first meetup after the proj...
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DATA607 Project 2
Data Transformation UNICEF: The State of the World’s Children 2019 Statistical Tables- Table 10 Education Assignment Overview 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....
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DATA607 Project 2
Data Transformation UNICEF: The State of the World’s Children 2019 Statistical Tables- Table 1 Demographics Assignment Overview 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 item...
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DATA605 Week 7 Post
Exactly one of six similar keys opens a certain door. If you try the keys, one after another, what is the expected number of keys that you will have to try before success? \(E(X) = p(x)(x) = \frac{1}{6}(1+2+3+4+5+6) = \frac{21}{6}=\frac{7}{2}\) ...
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DATA 607 HW 5
The chart above describes arrival delays for two airlines across five destinations. Create a .CSV file (or optionally, a MySQL database!) that includes all of the information above. You’re encouraged to use a “wide” structure similar to how the information appears above, so that you can practice tidying and transformations as described bel...
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DATA607 Project 2
Data Transformation UNICEF: The State of the World’s Children 2019 Statistical Tables- Table 7 Nutrition Assignment Overview 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. ...
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DATA605 HW8
Grinstead and Snell’s Introduction to Probability* CHAPTER 7. SUMS OF RANDOM VARIABLES and CHAPTER 8. LAW OF LARGE NUMBERS pg. 303 11. A company buys 100 lightbulbs, each of which has an exponential lifetime of 1000 hours. What is the expected time fot the first of these bulbs to burn out? n= 100 lightbulbs Exponential lifetime= 1000 hours ...
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DATA607 HW 7
Working with XML and JSON in R Assignment Overview The goal of this assignment is to give you practice in working with XML and JSON in R. Your task is to: Pick three of your favorite books on one of your favorite subjects where at least one of the books has more than one author. Each book should include the title, authors, and two or three othe...
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