Publications by John Poratti
Quiz1
# Load packages library(tidyquant) library(tidyverse) # for count() function # Import S&P500 Stock Index SP500 <- tq_index("SP500") SP500 ## # A tibble: 505 x 8 ## symbol company identifier sedol weight sector shares_held local_currency ## <chr> <chr> <chr> <chr> <dbl> <chr> <dbl> <chr> ## 1 AAP...
734 sym R (1735 sym/4 pcs)
Quiz 3
For this quiz, you are going to use orange juice data. This data set is originally used in a machine learning (ML) class, with the goal to predict which of the two brands of orange juices the customers bought. Of course, you are not building a ML algorithm in this quiz. I just wanted to provide you with the context of the data. The response varia...
2099 sym R (6513 sym/18 pcs) 2 img
Quiz2
For this quiz, you are going to use orange juice data. This data set is originally used in a machine learning (ML) class, with the goal to predict which of the two brands of orange juices the customers bought. Of course, you are not building a ML algorithm in this quiz. I just wanted to provide you with the context of the data. The response varia...
1932 sym R (5665 sym/7 pcs) 1 img
Quiz4
For this quiz, you are going to use orange juice data. This data set is originally used in a machine learning (ML) class, with the goal to predict which of the two brands of orange juices the customers bought. Of course, you are not building a ML algorithm in this quiz. I just wanted to provide you with the context of the data. The response varia...
3092 sym R (5761 sym/10 pcs) 1 img
Quiz5
Q1 Import data. Hint: The data file is posted in Moodle. See Module 5. It’s named as “gapminder.csv”. data <- read.csv("gapminder.csv") head(data) ## country continent year lifeExp pop gdpPercap ## 1 Afghanistan Asia 1952 28.801 8425333 779.4453 ## 2 Afghanistan Asia 1957 30.332 9240934 820.8530 ## 3 Afghanist...
1480 sym R (1134 sym/12 pcs) 2 img
Term Paper
Choose one of David Robinson’s tidytuesday screencasts, watch the video, and summarise. https://www.youtube.com/channel/UCeiiqmVK07qhY-wvg3IZiZQ Instructions You must follow the instructions below to get credits for this assignment. Elaborate your answer. One or two sentence answers won’t get credit. Make sure to cite what you see and hear ...
2567 sym