Count in r dplyr
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dplyr ≥0.7 Used for performing queries during calculations of the partial ROC (functions: arrange, count, desc, group_by, full_join, mutate, reexports, and ungroup).
[DOC File]R course exercises .uk
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Load the “tidyverse” library into your R session. Look at which packages are loaded and their versions. Read . small_file.txt. into an R variable called . small.file. This is a tab delimited text file so you’ll need to use the . read_tsv. function.
[DOCX File]AN INTRODUCTION TO CARE MANAGEMENT INTERVENTIONS
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R Code Included in Text. Chapter 3. Appendix . 3.10: R Code for Grouping. 2017 Medical and Surgical MS-DRG Codes # before running this script, make sure data is a data table, column with MS-DRG value is in string format # DRG is composed of 3 groups: medical, surgical, and ungrouped (invalid DRG code) # source of this classification could be ...
[DOC File]Biol 381: Special Topics: An Introduction to Computational ...
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Things you need: A large amount of computer programming will be necessary to successfully complete the course, so students will need easy access to computers running R (or with administrative access to download R), which is free, open-source software and some form of spreadsheet software (Microsoft Excel, Open Office, etc.).
[DOCX File]jogc
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#comment 1: this code specifies the use of the glmer function, from the lme4 package in R. This function specifies a logistic regression model (based on the specified family and link function) and includes a random intercept term for each hospital (“hospid”). “prov” specifies indicator variables for each province, while the remaining variables are the case-mix and hospital-level ...
[DOCX File]pages.pomona.edu
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Math 154 – Computational Statistics. Fall 2017. Jo Hardin. iClicker Questions. 1. The reason to take random samples is: (a) to make cause and effect conclusions
[DOCX File]Data Wrangling R with Answers
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Data Wrangling R with Answers. Prof. Eric A. Suess. Some of the code from Chapter 4, Section 1. In this chapter dplyr is introduced. We will be using dplyr all year. The main idea of data wrangling with dplyr are the 5 verbs. select() # take a subset of columns. filter() # take a subset of rows. mutate() # add or modify existing columns ...
[DOCX File]Module 3 examples - R code
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The following commands are intended to demonstrate the importance of using the sample weight in your analyses. The weighted estimate produces the correct point estimates for the prevalence of hypertension. However, your analysis must account for the complex survey design of NHANES (e.g. stratification and clustering), in order to produce correct standard errors (and confidence intervals ...
[DOCX File]Project 2 – FIN 654 - Spring 1: 2018
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R Markdown set up. Open a new R Markdown pdf (or Word) document file and save it with file name . lastname-firstname_Project2. to your working directory. The Rmd file extension will automatically be appended to the file name. Create a new folder called data in this working directory and deposit the .csv file for Project #2 to this directory.
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