Data-Management Reference Manual

Publisher:  Stata Press Copyright:  2011 ISBN-13:  978-1-59718-080-1 Pages:  636 Price:  $55.00 See a larger photo of the front cover Overview of the Stata 12 documentation Table of contents Introduction to data-management reference manual (pdf) Introduction to data-management commands (pdf) Sample entries (pdf): datetime business calendars—Business calendars merge—Merge datasets reshape—Convert data from wide to long form and vice versa Subject and author index (pdf) Download the datasets used in this manual (from www.stata-press.com)

Table of contents

intro (pdf)	Introduction to data-management reference manual
data management (pdf)	Introduction to data-management commands
append	Append datasets
assert	Verify truth of claim
bcal	Business calendar file manipulation
by	Repeat Stata command on subsets of the data
cd	Change directory
cf	Compare two datasets
changeeol	Convert end-of-line characters of text file
checksum	Calculate checksum of file
clear	Clear memory
clonevar	Clone existing variable
codebook	Describe data contents
collapse	Make dataset of summary statistics
compare	Compare two variables
compress	Compress data in memory
contract	Make dataset of frequencies and percentages
copy	Copy file from disk or URL
corr2data	Create dataset with specified correlation structure
count	Count observations satsifying specified conditions
cross	Form every pairwise combination of two datasets
data types	Quick reference for data types
datasignature	Determine whether data have changed
datetime	Date and time values and variables
datetime business calendars (pdf)	Business calendars
datetime business calendars creation	Business calendars creation
datetime display formats	Display formats for dates and times
datetime translation	String to numeric date translation functions
describe	Describe data in memory or in file
destring	Convert string variables to numeric variables and vice versa
dir	Display filenames
drawnorm	Draw sample from multivariate normal distribution
drop	Eliminate variables or observations
ds	List variables matching name patterns or other characteristics
duplicates	Report, tag, or drop duplicate observations
edit	Browse or edit data with Data Editor
egen	Extensions to generate
encode	Encode string into numeric and vice versa
erase	Erase a disk file
expand	Duplicate observations
expandcl	Duplicate clustered observations
export	Overview of exporting data from Stata
filefilter	Convert text or binary patterns in a file
fillin	Rectangularize dataset
format	Set variables' output format
functions	Functions
generate	Create or change contents of variable
gsort	Ascending and descending sort
hexdump	Display hexadecimal report on file
icd9	ICD-9-CM diagnostic and procedure codes
import	Overview of importing data into Stata
import excel	Import and export Excel files
import sasxport	Import and export datasets in SAS XPORT format
infile (fixed format)	Read text data in fixed format with a dictionary
infile (free format)	Read unformatted text data
infix (fixed format)	Read text data in fixed format
input	Enter data from keyboard
insheet	Read text data created by a spreadsheet
inspect	Display simple summary of data's attributes
ipolate	Linearly interpolate (extrapolate) values
isid	Check for unique identifiers
joinby	Form all pairwise combinations within groups
label	Manipulate labels
label language	Labels for variables and values in multiple languages
labelbook	Label utilities
list	List values of variables
lookfor	Search for string in variable names and labels
memory	Memory management
merge (pdf)	Merge datasets
missing values	Quick reference for missing values
mkdir	Create directory
mvencode	Change missing values to numeric values and vice versa
notes	Place notes in data
obs	Increase the number of observations in a dataset
odbc	Load, write, or view data from ODBC sources
order	Reorder variables in dataset
outfile	Export dataset in text format
outsheet	Write spreadsheet-style dataset
pctile	Create variable containing percentiles
putmata	Put Stata variables into Mata and vice versa
range	Generate numerical range
recast	Change storage type of variable
recode	Recode categorical variable
rename	Rename variable
rename group	Rename groups of variables
reshape (pdf)	Convert data from wide to long form and vice versa
rmdir	Remove directory
sample	Draw random sample
save	Save Stata dataset
separate	Create separate variables
shell	Temporarily invoke operating system
snapshot	Save and restore data snapshots
sort	Sort data
split	Split string variables into parts
stack	Stack data
statsby	Collect statistics for a command across a by list
sysuse	Use shipped dataset
type	Display contents of a file
use	Load Stata dataset
varmanage	Manage variable labels, formats, and other properties
webuse	Use dataset from Stata website
xmlsave	Export or import dataset in XML format
xpose	Interchange observations and variables
zipfile	Compress and uncompress files and directories in zip archive format
Subject and author index (pdf)