Publications by Julia Ferris
Lab 8 DATA 606
library(tidyverse) library(openintro) library(ggplot2) data('hfi', package='openintro') Exercise 1 What are the dimensions of the dataset? The dataset has 1458 rows and 123 columns. glimpse(hfi) ## Rows: 1,458 ## Columns: 123 ## $ year <dbl> 2016, 2016, 2016, 2016, 2016, 2016,… ## $ ISO_code ...
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Assignment 9 - API HW
Load Libraries library(rjson) library(RJSONIO) ## ## Attaching package: 'RJSONIO' ## The following objects are masked from 'package:rjson': ## ## fromJSON, toJSON library(gt) library(ggplot2) Format Data and Create Data Frame The data was uploaded from the NY Times API I created. It shows data for the top stories in the U.S. usa_data <...
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Project Proposal DATA 606
Data Preparation library(readr) traffickingVictims <- read_csv("https://raw.githubusercontent.com/juliaDataScience-22/cuny-fall-23/stats-and-probability/data_glotip.csv") library(dplyr) library(plyr) library(ggplot2) # Less than 5 can include 0, 1, 2, 3, or 4. # On average, we can expect 2 to be the value, # so I changed every value tha...
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Project 3 DATA 607
Finding Value Within the Data Science Industry Author Team Krijudato (Kristin L, Julia F, David G, Tony F) Published October 29, 2023 Introduction Beginning in 2011, Stack Overflow has conducted an annual survey for developers to participate in. This survey provides insights on a wide variety of topics, such as employment status, annual salar...
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Lab 7
knitr::opts_chunk$set(eval = TRUE, message = FALSE, warning = FALSE) library(tidyverse) library(openintro) library(infer) library(ggplot2) data('yrbss', package='openintro') Question 1 What are the cases in this data set? How many cases are there in our sample? The cases are individual high schoolers who participated in the survey. 13,583...
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Lab 6: Inference for Categorical Data
library(tidyverse) library(openintro) library(infer) Exercise 1 What are the counts within each category for the amount of days these students have texted while driving within the past 30 days? 0 — 4792 1-2 — 925 3-5 — 493 6-9 — 311 10-19 — 373 20-29 — 298 30 — 827 did not drive — 4646 NA — 918 library(dplyr) yrbss |> co...
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Assignment 7 - Working with Different Data Sources
Introduction In this file, three data frames (tables) are created. Each one shows the same data, but each one has data from different types of sources. The first one is from a json file, the second is from a html file, and the third is from an xml file. All the tables are at the end of this document. library(rvest) library(rjson) library(json...
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Extra Credit - Vaccine Data
Import the Data I used the read.csv() function to read the data from a csv file. vaccineData <- read.csv("https://raw.githubusercontent.com/juliaDataScience-22/cuny-fall-23/manage-acquire-data/vaccine_data.csv") Format the Data To format the data, I made the types of data the names of the columns. I renamed the first and last columns, and then I ...
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Lab 5a
knitr::opts_chunk$set(eval = TRUE, message = FALSE, warning = FALSE) set.seed(1234) library(tidyverse) library(openintro) library(infer) Exercise 1 Describe the distribution of responses in this sample. How does it compare to the distribution of responses in the population. Hint: Although the sample_n function takes a random sample of obser...
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Lab 5b
knitr::opts_chunk$set(eval = TRUE, message = FALSE, warning = FALSE) library(tidyverse) library(openintro) library(infer) Exercise 1 What percent of the adults in your sample think climate change affects their local community? Hint: Just like we did with the population, we can calculate the proportion of those in this sample who think clima...
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