Publications by Jacob Martin
DS 2870: Homework 6 Key - Spring 2024
Dice Description The dice rolling game Boreal comes with 7 dice: 4 six-sided dice (d6), 1 ten-sided die (d10), 1 twenty-sided die (d20), and 1 thirty-sided die (d30). All the dice start at 1 and increment by 1 to their max value (d6 = max 6, d30 = max 30). Question 1: Dice Rolling Function Create a function called dice_roller() that has the fo...
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STAT 5230: Chapter 9 - QDA with stars data
Reading in the data: stars <- read_excel("stars.xlsx") |> dplyr::mutate( type = factor(type, levels=c("Brown Dwarf", "Red Dwarf", "White Dwarf","Main Sequence", "Supergiant", "Hypergiant"))) |> dplyr::select(-color,-class) Initial check Using skim() to ge...
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STAT 5230: Chapter 9 - kNN with star data
Reading in the data: stars <- read_excel("stars.xlsx") |> dplyr::mutate( type = factor(type, levels=c("Brown Dwarf", "Red Dwarf", "White Dwarf","Main Sequence", "Supergiant", "Hypergiant")) ) |> mutate( across( .cols = c(lumin, radius, temp)...
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STAT 5230: Chapter 9 - LDA for two groups
Reading in the data and skimming it credit <- read_excel("credit fraud.xlsx") |> mutate(Fraud = factor(Fraud, levels = c("No", "Yes"))) #credit <- # read_csv("Credit Fraud Full.csv") |> # mutate(Fraud = factor(Fraud, # levels = c("No", "Yes"))) |> # dplyr::select(Fraud, Amount, PC1...
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STAT 5230: Lab 4 - Skulls Data
knitr::opts_chunk$set(echo = TRUE, fig.width = 10, fig.height = 6, fig.align = "center") # Load the needed package(s) below: pacman::p_load(heplots, readxl, tidyverse, magrittr, MVN, rstatix, broom) # Change the default theme below: theme_set(theme_bw()) ...
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DS 1870: Homework 4.1 Solutions - Spring 2024
If a question asks for any calculations (means, medians, tables, proportions, etc…) or graphs, make sure they appear in the knitted document The final document should not show any warnings Data Description The video game data set (vg) has 11 variables on over 64000 video games. The important variables are: title: the name of the game genre: ...
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DS 2870: Gradient Descent
Minimizing a second level polynomial We’ll start by minimizing a simple function: \[f(x) = (x - 2)^2\] Since the whole term is squared, the minimum value of \(f(x)\) is 0, which occurs when \(x = 2\) We can also graph it: # Function to be optimized second_order_poly <- function(x){(x - 2)^2} # Creating the function for values of -5 to 5 tibbl...
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STAT 5230: Chapter 8 - Discriminant Analysis for NBA data
Set Up Your Project and Load Libraries knitr::opts_chunk$set(echo = TRUE) options(digits = 3) ## Load the libraries we will be using pacman::p_load(tidyverse, magrittr, GGally, MVN) ## Changing the default theme to black white theme_set(theme_bw()) theme_update( axis.title = element_text(size = 12), axis.text = element_text(size = 1...
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DS 1870: Module 4.2 Homework Results - Sp 24
Question 1 Blackjack is a card game where the player goes up against the dealer (not other players). A round of blackjack can end in one of three ways: “player” wins, “dealer” wins, or a “push” (tie). The goal of blackjack is to try to get as close of a point total of 21 as possible without going over (called a bust). If the player i...
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STAT 5230: Chapter 6 - Oney-way RCBD MANOVA
Set Up Your Project and Load Libraries knitr::opts_chunk$set(echo = TRUE) options(digits = 3) ## Load the libraries we will be using pacman::p_load(tidyverse, Rfast, heplots, GGally, MVN, car, rstatix) ## Changing the default theme to black white theme_set(theme_bw()) theme_update( axis.title = element_text(size = 10),...
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