Publications by Johnny Rodriguez
DATA 621 Homework 2
Overview In this homework assignment, you will work through various classification metrics. You will be asked to create functions in R to carry out the various calculations. You will also investigate some functions in packages that will let you obtain the equivalent results. Finally, you will create graphical output that also can be used to evaluat...
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Data 621 Homework 1
Data Exploration Here we load and explore the baseball data. Some key insights include: The dataset’s variables show a wide range in means and standard deviations with some variables showing significant variation. Several predictors present significant outliers, especially TEAM_PITCHING_H and TEAM_PITCHING_SO, indicating that some teams have ext...
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Data 624 Project 2 - Final Report
library(readxl) library(caret) library(tidyverse) library(VIM) library(ggplot2) library(GGally) library(car) library(glmnet) Abstract We are tasked with with analyzing the manufacturing process of a beverage company, ABC Beverage. Specifically, we are tasked with analyzing what factors in the process can help us predict the PH of a beverage. We tr...
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Data 624 Project 2 Version 2
library(readxl) library(caret) library(tidyverse) library(VIM) library(ggplot2) library(GGally) library(car) library(glmnet) Import Excel tables: Below we import the excel data from Github stu_data_url <- 'https://github.com/amedina613/Data624-Project2/raw/refs/heads/main/StudentData.xlsx' dest_file_stu_data <- 'StudentData.xlsx' stu_eval_url <-...
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Data 624 Project 2 DRAFT
Problem Statement My leadership has told me that new regulations are requiring us to understand our manufacturing process, the predictive factors and be able to report to them our predictive model of PH. Please use the historical data set I am providing. Build and report the factors in BOTH a technical and non-technical report. Please provide your ...
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Data 624 Week 12 HW
# Load libraries library(caret) library(AppliedPredictiveModeling) library(mlbench) library(partykit) library(Cubist) library(randomForest) library(party) library(gbm) Do problems 8.1, 8.2, 8.3, and 8.7 in Kuhn and Johnson. Please submit the Rpubs link along with the .rmd file. Exercise 8.1 Simulated Data Recreate the simulated data from Exercise...
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Data 624 Week 11 HW
# Load libraries library(caret) library(mlbench) library(earth) library(kernlab) library(nnet) library(AppliedPredictiveModeling) Exercise 7.2 Friedman (1991) introduced several benchmark data sets create by simulation. One of these simulations used the following nonlinear equation to create data: \[y = 10\sin(\pi x_1x_2) + 20(x_3 - 0.5)^2 + 10x_4...
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Data 624 Week 10 HW
# Load libraries library(caret) library(elasticnet) library(MASS) library(lars) library(pls) library(AppliedPredictiveModeling) library(RANN) library(corrplot) library(car) Exercise 6.2 Developing a model to predict permeability (see Sect. 1.4) could save significant resources for a pharmaceutical company, while at the same time more rapidly ident...
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Data 624 Project 1
# Load libraries library(tidyverse) library(fpp3) library(imputeTS) library(kableExtra) library(scales) library(gridExtra) library(lubridate) Part A – ATM Forecast In part A, I want you to forecast how much cash is taken out of 4 different ATM machines for May 2010. The data is given in a single file. The variable ‘Cash’ is provided in hundr...
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Data 624 Week 8 HW
# Load libraries library(fpp3) library(dplyr) library(imputeTS) library(fable) library(tibble) library(kableExtra) library(ggplot2) library(scales) library(gridExtra) Instructions Do the exercises 9.1, 9.2, 9.3, 9.5, 9.6, 9.7, 9.8 in Hyndman. Please submit both the Rpubs link as well as your .rmd file. Exercise 9.1 Figure 9.32 shows the ACFs for ...
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