Publications by Winelyn Pelias
Factor Analysis in R
Data Overview Fetching data from the server url <- "https://raw.githubusercontent.com/housecricket/data/main/efa/sample1.csv" data_survey <- read.csv(url, sep = ",") Describing the data vars n mean sd median trimmed mad min max range skew kurtosis ID 1 259 130.00 74.91 130 130.00 96.37 1 259 258 0.00 -1.21 KM1 ...
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ACTIVITY 2 (PCA)
Principal Components Analysis in R We will use the Places Rated Almanac data (Boyer and Savageau) which rates 329 communities according to nine criteria: Climate and Terrain, Housing, Health Care & Environment, Crime, Transportation, Education, The Arts, Recreation and Economics. Load the Data places <- read.table("D:/Stat 56/places.txt", heade...
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Using R for Multivariate Analysis
Multivariate Analysis It tells you how to use the R statistical software to carry out some simple multivariate analyses, with a focus on principal components analysis (PCA) and linear discriminant analysis (LDA). Reading Multivariate Analysis Data into R wine <- read.table("D:/Stat 56/wine.data", sep=",") paged_table(wine) P...
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Exercise 4
Equality of Variances in R-Homogeneity test-Quick Guide There are different types of tests that can be utilized to assess the equality of variances. F-test:- Used for two groups variance comparison. Data must be normally distributed. Bartlett’s test:- Used for two or more groups variance comparison. Data must be normally distributed. Leven...
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Exercise 3
Paired sample t-test using RICT training data Paired sample T-test is also called the dependent sample T-test. It compares differences between two dependent mean scores. It is used to determine whether the mean difference between two sets of observations is zero. In a paired sample t-test each subject or entity is measured twice. This results...
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Exercise 5
One-way ANOVA One way ANOVA Example in R, the one-way analysis of variance (ANOVA), also known as one-factor ANOVA, is an extension of the independent two-sample t-test for comparing means when more than two groups are present. The data is divided into numerous groups using one single grouping variable in one-way ANOVA (also called factor var...
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Exercise 2
Two-way Anova Data library(readxl) Data1 <- read_excel("D:/Winelyn/Data1.xlsx") View(Data1) TT1<-Data1 TT1 # A tibble: 27 × 5 PhaseInterval Temperature `Adlay with wash` `Adlay with mi…` `Adlay with mi…` <chr> <chr> <dbl> <dbl> <dbl> 1 3- day 25°C 759...
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Midterm Exam
Question 1 A COVID frontliner wants to estimate the average amount that a resident in Maramag would donate to COVID affected families in Maramag. Twenty residents were randomly selected from the Municipality of Maramag. The 20 randomly residents were contacted by telephone and asked how much they would be willing to donate. Their responses ar...
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Sample Analysis Using MR - PELIAS, WINELYN
New names: • `Relax3` -> `Relax3...40` • `Relax3` -> `Relax3...41` • `Education` -> `Education...50` • `` -> `...51` • `Income` -> `Income...52` • `` -> `...71` • `Education` -> `Education...72` • `` -> `...73` • `` -> `...74` • `` -> `...75` • `Income` -> `Income...76` • `` -> `...77` • `` -> `...79` • `...
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Analysis Using MR
Independent variables: SSOverall, STOverall , and SCOverall Dependent variable: GWA (1st sem SY: 2021-2022) library(rmarkdown) library(dplyr) Warning: package 'dplyr' was built under R version 4.2.1 Attaching package: 'dplyr' The following objects are masked from 'package:stats': filter, lag The following objects are masked from 'packag...
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