- MESA EXAM 5 ANCILLARY STUDY 113 SLEEP QUESTIONNAIRE DATA SET VARIABLE GUIDE Data Set name: MESAe5SleepQ20140617 Principal Investigator: Susan Redline Contact Information: [email protected].
- To install the ado-files and the help files, click on click here to install, or type net install packagename. To install the ancillary files, select the click here to get link, or type net get packagename. Stata will automatically find the correct directory for installation.
- That looks, as usual, a very powerful new tool for Stata Users. Unfortunately using the ancillary files the examples described in the paper do not run probably because the do files use some macro not available on the web: -meanzero-, -gdelta-, -gph2wmf8- and -logopen-.
This page will demonstrate the use of the Stata program ctems to do the Cornfield-Tukey computation. Ctems can be found and downloaded using the command, search ctems (see How can I use the search command to search for programs and get additional help? For more information about using search ), and following the instructions.
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In Stata, the very first step of analyzing a dataset should be opening the dataset in Stata so that it knows which file you are going to work with. Yes, you can simply double click on a Stata data file that ends in .dta to open it, or you can do something fancier to achieve the same goal – like write some codes. Okay, there is at least one more reason than being fancier that makes me prefer to write syntax than clicking through things in Stata – I like to have everything I did recorded so that I can easily reproduce the same work or use the scripts again when working on similar tasks next time. In this post, I introduce ways of reading in, using and saving Stata and other formats of data files.
![Stata commands Stata commands](https://writerswrite000.files.wordpress.com/2017/11/cristoph-contact-file-page-001.jpg?w=600)
-sysuse-: reading in datasets come with Stata
Several example datasets are installed with Stata. This command reads in one of them, census.dta, to memory. You should be able to see the data in your Stata Data Browser after running this following line.
-describe-: the information of the dataset in memory
Tip: run “set more off” to tell Stata to pause for -more- messages
-summarize-: summary statistics
-clear-: wipe out the data in memory
-use-: read in Stata datasets
Most of the time, we use datasets that are either stored on our machine or on the web. Simply use the -use- command to read in the data file to memory.
-cd-: change directory
Now let’s save this dataset on the web to your machine. You can use the -cd- command to tell Stata where to save this file.
-save-: save files
-dir-: display file names
-insheet- and -outsheet-: import and export .csv files
Oftentimes we work with Stata and other software for the same project. In that case we need to import data files that are not in a Stata format or export Stata data files to other formats. Here is an example of how to save datasets as .csv files and read them into Stata.
View the entire collection of UVA Library StatLab articles.
Stata
Yun Tai
CLIR Postdoctoral Fellow
University of Virginia Library
CLIR Postdoctoral Fellow
University of Virginia Library