Publications by Kim Koon
Data 624 Assignment 4
Load packages library(fpp3) library(RColorBrewer) library(seasonal) library(mlbench) library(fmsb) Instructions Do problems 3.1 and 3.2 in the Kuhn and Johnson book Applied Predictive Modeling. Exercise 3.1 The UC Irvine Machine Learning Repository6 contains a data set related to glass identification. The data consist of 214 glass samples ...
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Data 607 Assignment 5
Load packages library(tidyverse) Overview / Introduction For this assignment, we are given a table in an untidy structure. This table contains information on Alaska and AmWest airline flights to Los Angeles, Phoenix, San Diego, San Francisco, and Seattle. Specifically, it contains information on the number of delayed and on-time flights to eac...
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Data 624 Assignment 3
Load packages library(fpp3) library(RColorBrewer) library(seasonal) Instructions Do exercises 5.1, 5.2, 5.3, 5.4 and 5.7 in the Hyndman book. Please submit your Rpubs link as well as your .pdf file showing your run code. Exercise 1 Produce forecasts for the following series using whichever of NAIVE(y), SNAIVE(y) or RW(y ~ drift()) is more a...
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Data 624 Assignment 2
Load packages library(fpp3) library(RColorBrewer) library(seasonal) Instructions Do exercises 3.1, 3.2, 3.3, 3.4, 3.5, 3.7, 3.8 and 3.9 from the online Hyndman book. Please include your Rpubs link along with.pdf file of your run code Exercise 1 Consider the GDP information in global_economy. Plot the GDP per capita for each country over tim...
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Data 607 Assignment 3
Load packages library(tidyverse) Overview / Introduction This week we reviewed regular expressions, which are useful for string manipulation and identifying patterns within strings. Since understanding strings is foundational to understanding regular expressions, we also touched upon useful string functions in this assignment. Question 1 Usin...
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Data 607 Assignment 2
Load packages library(tidyverse) Overview / Introduction For this assignment, I surveyed 5 people with the following question: Please rate these movies on a scale of 1-5, with NA if you did not see them. 1. Deadpool and Wolverine 2. Everything, Everywhere, All at Once 3. Barbie 4. Oppenheimer 5. Spiderman Into the Spiderverse 6. Puss in Boots ...
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Data 624 Assignment 1
Load packages library(fpp3) Instructions Please submit exercises 2.1, 2.2, 2.3, 2.4, 2.5 and 2.8 from the Hyndman online Forecasting book. Please submit both your Rpubs link as well as attach the .pdf file with your code. Exercise 1 Explore the following four time series: Bricks from aus_production, Lynx from pelt, Close from gafa_stock, Dema...
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Data 607 Assignment 1
Load packages library(tidyverse) Overview / Introduction For my article, I chose “The Economic Guide to Picking a College Major”, found here: https://fivethirtyeight.com/features/the-economic-guide-to-picking-a-college-major/. The article discusses median salaries for various college degrees, highlighting the lucrative nature of engineering ma...
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