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Added DS_Store files to the gitignore #3

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Added DS_Store files to the gitignore #3

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aaa3093
Added DS_Store files to the gitignore
Apr 19, 2017
4283e86
partial completion for participation
Apr 19, 2017
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3 changes: 3 additions & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,9 @@ vignettes/*.pdf
/*_cache/
/cache/

# Mac system files
.DS_Store

# Temporary files created by R markdown
*.utf8.md
*.knit.md
20 changes: 15 additions & 5 deletions exercise-8/exercise.R
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@@ -1,4 +1,5 @@
# Exercise 8: Pulitzer Prizes
setwd("~/Work/School/INFO201/m11-dplyr/exercise-8/")

# Read in the data
pulitzer <- read.csv("data/pulitzer-circulation-data.csv", stringsAsFactors = FALSE)
Expand All @@ -9,27 +10,36 @@ pulitzer <- read.csv("data/pulitzer-circulation-data.csv", stringsAsFactors = FA
#install.packages(dplyr)
library(dplyr)

# View in the data set. Start to understand what the data columns contains
# View in the data set. Start to understa'nd what the data columns contains
# Be sure to comment out the function so it won't view everytime you run the code.

View(pulitzer)

# Use 'colnames' to print out the names of the columns

print(colnames(pulitzer))

# Use 'str' to print what types of values are contained in each column
# Did any value type surprise you? Why do you think they are that type?

print(str(pulitzer))

# Add a column that contains the diffrence in changes in Daily Circulation from 2004 to 2013
pulitzer.diff <- mutate(pulitzer, Change.2004.to.2013 =
Pulitzer.Prize.Winners.and.Finalists..2004.2014 -
Pulitzer.Prize.Winners.and.Finalists..1990.2003)


# What publication gained the most pulitzer prizes from 2004-2014?
# Be sure to use the pipe operator!
most.pulitzer <- filter(pulitzer.diff, max(Pulitzer.Prize.Winners.and.Finalists..2004.2014) ==
Pulitzer.Prize.Winners.and.Finalists..2004.2014) %>% select(Newspaper)


# Which publication with at least 5 Pulitzers won from 2004-2014 had the biggest decrease(negative) in Daily circulation numbers?
# This publication should have Pulitzer prizes won a minimum of 5 Pulitzers, as well as the biggest decrease in circulation


# Your turn! An important part about being a data scientist is asking questions.
# Create a question and use dplyr to figure out the answer.
# Create a question and use dplyr to figure out the answer.