| intro (pdf) |
Introduction to data-management reference manual |
| data management (pdf) |
Introduction to data-management commands |
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| append |
Append datasets |
| assert |
Verify truth of claim |
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| by |
Repeat Stata command on subsets of the data |
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| 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 |
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| data types |
Quick reference for data types |
| datasignature |
Determine whether data have changed |
| dates and times |
Date and time (%t) values and variables |
| 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 |
| duplicates |
Report, tag, or drop duplicate observations |
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| 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 |
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| fdasave (pdf) |
Save and use datasets in FDA (SAS XPORT) format |
| filefilter |
Convert ASCII text or binary patterns in a file |
| fillin |
Rectangularize dataset |
| format |
Set variables' output format |
| functions |
Functions |
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| generate |
Create or change contents of variable |
| gsort |
Ascending and descending sort |
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| hexdump |
Display hexadecimal report on file |
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| icd9 |
ICD-9-CM diagnostic and procedure codes |
| infile |
Overview of reading data into Stata |
| infile (fixed format) |
Read ASCII (text) data in fixed format with a dictionary |
| infile (free format) |
Read unformatted ASCII (text) data |
| infix (fixed format) |
Read ASCII (text) data in fixed format |
| input |
Enter data from keyboard |
| insheet |
Read ASCII (text) data created by a spreadsheet |
| inspect |
Display simple summary of data's attributes |
| ipolate |
Linearly interpolate (extrapolate) values |
| isid |
Check for unique identifiers |
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| joinby |
Form all pairwise combinations within groups |
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| 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 |
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| memory |
Memory size considerations |
| merge (pdf) |
Merge datasets |
| missing values |
Quick reference for missing values |
| mkdir |
Create directory |
| mvencode |
Change missing values to numeric values and vice versa |
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| notes |
Place notes in data |
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| obs |
Increase the number of observations in a dataset |
| odbc |
Load, write, or view data from ODBC sources |
| order |
Reorder variables in dataset |
| outfile |
Write ASCII-format dataset |
| outsheet |
Write spreadsheet-style dataset |
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| pctile |
Create variable containing percentiles |
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| range |
Generate numerical range |
| recast |
Change storage type of variable |
| recode |
Recode categorical variable |
| rename |
Rename variable |
| reshape (pdf) |
Convert data from wide to long form and vice versa |
| rmdir |
Remove directory |
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| sample |
Draw random sample |
| save |
Save datasets |
| 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 |
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| type |
Display contents of a file |
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| use |
Use Stata dataset |
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| varmanage |
Manage variable labels, formats, and other properties |
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| webuse |
Use dataset from Stata web site |
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| xmlsave |
Save and use observations in XML format |
| xpose |
Interchange observations and variables |
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| zipfile |
Compress and uncompress files and directories in zip archive format |
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| Subject and author index (pdf) |
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