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| Publisher: | Stata Press |
| Copyright: | 2025 |
| ISBN-13: | 978-1-59718-422-9 |
| Pages: | 987 |
Suggested citation:
StataCorp. 2025. Stata 19 Data Management Reference Manual. College Station, TX: Stata Press.
Data Management Using Stata: A Practical Handbook, Second Edition
Michael N. Mitchell
The Stata Blog: Data management category
Using Stata effectively: The fundamentals training course
Ready. Set. Go Stata. webinar
Tips and Tricks webinar
| Intro | Introduction to data management reference manual | |
| Data management | Introduction to data management commands | |
| append | Append datasets | |
| assert | Verify truth of claim | |
| assertnested | Verify variables nested | |
| 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 satisfying 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 | Business calendars | |
| Datetime business calendars creation | Business calendars creation | |
| Datetime conversion | Converting strings to Stata dates | |
| Datetime display formats | Display formats for dates and times | |
| Datetime durations | Obtaining and working with durations | |
| Datetime relative dates | Obtaining dates and date information from other dates | |
| Datetime values from other software | Date and time conversion from other software | |
| 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 | Drop variables or observations | |
| ds | Compactly list variables with specified properties | |
| duplicates | Report, tag, or drop duplicate observations | |
| dyngen | Dynamically generate new values of variables | |
| 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 ASCII or binary patterns in a file | |
| fillin | Rectangularize dataset | |
| format | Set variables' output format | |
| fralias | Alias variables from linked frames | |
| frames intro | Introduction to frames | |
| frames | Data frames | |
| frame change | Change identity of current (working) frame | |
| frame copy | Make a copy of a frame | |
| frame create | Create a new frame | |
| frame drop | Drop frame from memory | |
| frame prefix | The frame prefix command | |
| frame put | Copy selected variables or observations to a new frame | |
| frame pwf | Display name of current (working) frame | |
| frame rename | Rename existing frame | |
| frames describe | Describe frames in memory or in a file | |
| frames dir | Display names of all frames in memory | |
| frames modify | Modify a set of frames on disk | |
| frames reset | Drop all frames from memory | |
| frames save | Save a set of frames on disk | |
| frames use | Load a set of frames from disk | |
| frget | Copy variables from linked frame | |
| frlink | Link frames | |
| frunalias | Change storage type of alias variables | |
| generate | Create or change contents of variable | |
| gsort | Ascending and descending sort | |
| hexdump | Display hexadecimal report on file | |
| icd | Introduction to ICD commands | |
| icd9 | ICD-9-CM diagnosis codes | |
| icd9p | ICD-9-CM procedure codes | |
| icd10 | ICD-10 diagnosis codes | |
| icd10cm | ICD-10-CM diagnosis codes | |
| icd10pcs | ICD-10-PCS procedure codes | |
| import | Overview of importing data into Stata | |
| import dbase | Import and export dBase files | |
| import delimited | Import and export delimited text data | |
| import excel | Import and export Excel files | |
| import fred | Import data from Federal Reserve Economic Data | |
| import haver | Import data from Haver Analytics databases | |
| import haverdirect | Import data from Haver Analytics Cloud servers | |
| import sas | Import SAS files | |
| import sasxport5 | Import and export data in SAS XPORT Version 5 format | |
| import sasxport8 | Import and export data in SAS XPORT Version 8 format | |
| import spss | Import SPSS files | |
| infile (fixed format) | Import text data in fixed format with a dictionary | |
| infile (free format) | Import unformatted text data | |
| infix (fixed format) | Import text data in fixed format | |
| input | Enter data from keyboard | |
| insobs | Add or insert observations | |
| inspect | Display simple summary of data's attributes | |
| ipolate | Linearly interpolate (extrapolate) values | |
| isid | Check for unique identifiers | |
| jdbc | Load, write, or view data from a database with a Java API | |
| 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 | 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 | |
| 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 variables | |
| rename | Rename variable | |
| rename group | Rename groups of variables | |
| reshape | 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 | |
| splitsample | Split data into random samples | |
| stack | Stack data | |
| statsby | Collect statistics for a command across a by list | |
| sysuse | Use shipped dataset | |
| type | Display contents of a file | |
| unicode | Unicode utilities | |
| unicode collator | Language-specific Unicode collators | |
| unicode convertfile | Low-level file conversion between encodings | |
| unicode encoding | Unicode encoding utilities | |
| unicode locale | Unicode locale utilities | |
| unicode translate | Translate files to Unicode | |
| use | Load Stata dataset | |
| varmanage | Manage variable labels, formats, and other properties | |
| vl | Manage variable lists | |
| vl create | Create and modify user-defined variable lists | |
| vl drop | Drop variable lists or variables from variable lists | |
| vl list | List contents of variable lists | |
| vl rebuild | Rebuild variable lists | |
| vl set | Set system-defined variable lists | |
| webuse | Use dataset from Stata website | |
| xpose | Interchange observations and variables | |
| zipfile | Compress and uncompress files and directories in zip archive format | |
| Glossary | ||
| Combined author index | ||
| Combined subject index |
