Publications by Nikoleta Emanouilidi
Homework 5 Data 624
library(fpp3) library(fable) library(ggplot2) library(tsibble) library(dplyr) Question 1 Consider the the number of pigs slaughtered in Victoria, available in the aus_livestock dataset. a) Use the ETS() function to estimate the equivalent model for simple exponential smoothing. Find the optimal values of a and l0 , and generate forecasts ...
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Homework 4 Data 624
3.1. The UC Irvine Machine Learning Repository6 contains a data set related to glass identification. The data consist of 214 glass samples labeled as one of seven class categories. There are nine predictors, including the refractive index and percentages of eight elements: Na, Mg, Al, Si, K, Ca, Ba, and Fe.The data can be accessed via: library...
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Homework 3 Data 624
1 Produce forecasts for the following series using whichever of NAIVE(y), SNAIVE(y) or RW(y ~ drift()) is more appropriate in each case: Australian Population (global_economy) Bricks (aus_production) NSW Lambs (aus_livestock) Household wealth (hh_budget). Australian takeaway food turnover (aus_retail). library(fpp3) ## Warning: package 'fpp3...
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Homework 2 Data 624
library(lubridate) library(tsibble) ## Warning: package 'tsibble' was built under R version 4.3.3 library(ggplot2) ## Warning: package 'ggplot2' was built under R version 4.3.3 library(tidyverse) library(fpp3) ## Warning: package 'fpp3' was built under R version 4.3.3 ## Warning: package 'tsibbledata' was built under R version 4.3.3 ## Warning: p...
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Homework 1 Data 624
First, I’m loading some libraries that I think will be useful. library(lubridate) ## ## Attaching package: 'lubridate' ## The following objects are masked from 'package:base': ## ## date, intersect, setdiff, union library(tsibble) ## Warning: package 'tsibble' was built under R version 4.3.3 ## Registered S3 method overwritten by 'tsibbl...
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Final Project data 607
library(dplyr) library(ggplot2) library(tidyr) library(shiny) ## Warning: package 'shiny' was built under R version 4.3.3 library(DT) ## Warning: package 'DT' was built under R version 4.3.3 library(jsonlite) ## Warning: package 'jsonlite' was built under R version 4.3.3 library(httr) ## Warning: package 'httr' was built under R version 4.3.3 I...
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Week 10 Data 607
Load the libraries ### I found the libraries by reading chapter 1 library(tidyverse) ## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ── ## ✔ dplyr 1.1.4 ✔ readr 2.1.5 ## ✔ forcats 1.0.0 ✔ stringr 1.5.1 ## ✔ ggplot2 3.4.4 ...
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Week 9 Data 607
Load the desired libraries. library(httr) library(jsonlite) library(tidyverse) ## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ── ## ✔ dplyr 1.1.4 ✔ readr 2.1.5 ## ✔ forcats 1.0.0 ✔ stringr 1.5.1 ## ✔ ggplot2 3.4.4 ✔ t...
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Week 7 Data 607
Load the needed libraries library(xml2) library(jsonlite) library(XML) HTML You can find the code I used to create the html table in my Github page! There’s a link to the code source: https://github.com/NikoletaEm/607LABS/blob/main/books.html Load the html file I created with my favourite books in a dataframe! books_html <- readHTMLTable(...
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Project 2 Data 607
Dataset 1: FIFA 2021 Data First step. Load the needed libraries! library(tidyr) library(dplyr) ## ## Attaching package: 'dplyr' ## The following objects are masked from 'package:stats': ## ## filter, lag ## The following objects are masked from 'package:base': ## ## intersect, setdiff, setequal, union library(ggplot2) library(rea...
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