Publications by Janet Rosenbaum
Epi 5201/7201 Project skill: Making table 1
The purpose of this Rmarkdown file The table 1 of a paper shows the demographic composition of the sample. In this file, we’ll use the library table1 to make a table 1 that can be included in your papers. Define variables Before we can make a table, we need variables. Load libraries, including libraries for table: library(mosaic) library(reads...
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Epi 5201/7201: Session 3-4 in class exercises - data display
For homework, you will be making plots with HELPrct and you will also be doing analysis of YRBS: see the Homework 3 example Rmarkdown file for that. Load the libraries Load your libraries. library(mosaic) library(HistData) library(ggplot2) For each plot, I’ve made it in both mosaic/lattice and in ggplot. The ggplot commands are in the 3rd vers...
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Epi 5201/7201 Project skill: Example analysis
library(mosaic) library(readstata13) library(arm) setwd("../../datasets/yrbs2019") yrbs=read.dta13("yrbs2019.dta") Bivariate analysis Outcome variable: depression in past year Whenever we define a variable, we check that we did it correctly: yrbs$depression=yrbs$Q25=="Yes" tally(depression ~ Q25 , data=yrbs) ## Q25 ## depression Yes ...
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Epi 5205/7202: Session 2 in class exercises - linear regression
Load libraries library(mosaic) library(arm) library(Sleuth2) library(foreign) Building height and stories The 1994 World Almanac reports heights and number of stories for notable tall buildings in North America. The data in this data frame ex0728 are a random sample of size 60 of those for which dates of completion were available. Scatterplot �...
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Epi 5201/7201: Session 13 survey data analysis
Why we do data analysis in methods 1: I know this is hard. I introduce data analysis in methods 1 precisely because I know you don’t fully understand it and are copying and pasting and changing commands. That’s how I learned! Next time, you will have seen it already, and you will understand it better. It’s a skill that requires time and rep...
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Epi 5201/7201: Session 11 missing data
library(foreign) library(arm) library(sem) library(mosaic) library(readstata13) # Missing data library(mice) setwd("~/Dropbox/Epidemiology5205-spring2022/data/MIDUS data") M=read.dta13("midus-waves123.dta") Study 1: mental health and later hypertension Study 2: some college and later diabetes Study 3: hypertension and later gum disease Define so...
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Epi 5205/7202: Session 5 in class exercises - hypothesis testing
Fall 2021, Epidemiology 5201/7201 In-class exercise 5 Using the Health Evaluation and Linkage to Primary Care (HELPrct) dataset, do the following types of statistical hypothesis tests. Remember to load the mosaic library. We’re also using a new library for chi-square posthoc tests. We use message=F here so that we don’t have many screenfuls o...
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Biostat 5201: Session 2: Using R for binary outcomes
Load the libraries at the start of every session. Note that brglm has been replaced by brglm2. library(faraway) library(MASS) library(splines) library(mosaic) library(arm) library(Sleuth2) trellis.par.set(theme = col.mosaic()) library(dplyr) library(brglm2) library(brglm) library(ggplot2) options(digits = 3) Bird keeping and lung cancer Statist...
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Biostat 5201: Session 1: Using R for Linear Regression
R Markdown This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com. When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within t...
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Document
Load libraries We start out loading libraries: mosaic for the simpler commands, and Sleuth2 for the data. For Gelman and Hill’s book, we install and then load the arm package. (arm stands for the book’s title: Analysis using Regression and Multilevel (models)) We will also install the foreign package that lets us load in data formats from oth...
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