Publications by Sith
Week 1 Discussion
Load Libraries library(fpp3) ## ── Attaching packages ────────────────────────────────────────────── fpp3 0.5 ── ## ✔ tibble 3.2.1 ✔ tsibble 1.1.3 ## ✔ dplyr 1.1.1 ✔ tsibbledata 0.4.1 ## ✔ tidyr 1.3.0 ✔ ...
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Lecture 2-R
Libraries require(fpp3) ## Loading required package: fpp3 ## ── Attaching packages ────────────────────────────────────────────── fpp3 0.5 ── ## ✔ tibble 3.2.1 ✔ tsibble 1.1.3 ## ✔ dplyr 1.1.1 ✔ tsibbledata 0.4.1 ## �...
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For Anthony
Load Data #remove(list=ls()) require(Amelia) ## Loading required package: Amelia ## Loading required package: Rcpp ## ## ## ## Amelia II: Multiple Imputation ## ## (Version 1.8.1, built: 2022-11-18) ## ## Copyright (C) 2005-2023 James Honaker, Gary King and Matthew Blackwell ## ## Refer to http://gking.harvard.edu/amelia/ for more informatio...
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Week 7 Solutions
Problem 1 Let \(X_1, X_2, . . . , X_n\) be n mutually independent random variables, each of which is uniformly distributed on the integers from 1 to k. Let Y denote the minimum of the \(X_i's\). Find the distribution of \(Y\). Let \(P(Y \le y)\) be the distribution of the minimum. \[P(min(X_1, X_2, ..X_n) \le y)\] Using the complement, \(P(Y ...
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Initial Look at Data for Brad
Graphing Functions require(ggplot2) ## Loading required package: ggplot2 ## Warning: package 'ggplot2' was built under R version 4.2.2 require(ggcorrplot) ## Loading required package: ggcorrplot ## Warning: package 'ggcorrplot' was built under R version 4.2.2 corfunction=function(d){ mycorr=cor(d[, 1:ncol(d)]); p.mat=ggcorrplot::cor_pmat(d[,1:nc...
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BRFSS 2023 Take2
Setup Setup knitr::opts_chunk$set(echo = TRUE) knitr::opts_knit$set(root.dir = "C:/Users/lfult/Documents/Jose") Load Libraries options(scipen=20) require(dplyr);require(doParallel);require(epitools);require(foreach) ## Loading required package: dplyr ## ## Attaching package: 'dplyr' ## The following objects are masked from 'package:stats': ...
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BRFSS 2023
Setup Setup knitr::opts_chunk$set(echo = TRUE) knitr::opts_knit$set(root.dir = "C:/Users/lfult/Documents/Jose") Load Libraries options(scipen=20) require(dplyr);require(doParallel);require(epitools);require(foreach) ## Loading required package: dplyr ## ## Attaching package: 'dplyr' ## The following objects are masked from 'package:stats': ...
18731 sym R (131130 sym/163 pcs) 20 img 4 tbl
Simple Regression with Box Cox
Libraries require(car) ## Loading required package: car ## Loading required package: carData require(lmtest) ## Loading required package: lmtest ## Loading required package: zoo ## ## Attaching package: 'zoo' ## The following objects are masked from 'package:base': ## ## as.Date, as.Date.numeric require(Hmisc) ## Loading required package: ...
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Population Variance Sample Size
Sample Size for Variance The problem: Find the minimum sample size needed to be 99% confident that the sample’s variance is within 1% of the population’s variance. This question is exceedingly tricky, since 1) \(\chi^2\) is not symmetrical, but we can at least find one interval that meets the mission. But remember, the sample variance is th...
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ASiF Modeling
Libraries ###################### library(Amelia) # ## Warning: package 'Amelia' was built under R version 4.2.2 ## Loading required package: Rcpp ## ## ## ## Amelia II: Multiple Imputation ## ## (Version 1.8.0, built: 2021-05-26) ## ## Copyright (C) 2005-2023 James Honaker, Gary King and Matthew Blackwell ## ## Refer to http://gking.harv...
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