2021. 3. 14. 04:11ㆍ카테고리 없음
https://suppciconfi.tistory.com/28. The answer depends on at what level you want to do econometrics, and what your specialization is. I divide programs into three categories: One-Click, Semi-Coding, and Pure Coding. "One-Click" Programs ((almost) no coding required, results obtaine. Gretl is a free open source econometric software for Windows. It provides a variety of tool to analyze economic data. You can create new data set or import relevant data from different files such as CSV, ASCII file, XLS, XLSX, ODS, and other econometric software files like Stata files, Eviews files, JMulTi files, Octave files, etc. Some sample data files are also provided for econometric study.
- Stata Econometrics software, free download
- Stata Econometric Software Tutorial
- Stata Econometric Software Examples
- Econometric Software Packages
- Stata Econometric Software 2017
- Stata Econometric Software Free
| Original author(s) | William Gould[1] |
|---|---|
| Developer(s) | StataCorp |
| Initial release | 1985 |
| Stable release | |
| Written in | C |
| Operating system | Windows, macOS, Linux |
| Type | Statistical analysis |
| License | Proprietary |
| Website | www.stata.com |
Stata is a general-purpose statistical software package created in 1985 by StataCorp. Most of its users work in research, especially in the fields of economics, sociology, political science, biomedicine and epidemiology.[2]
Stata's capabilities include data management, statistical analysis, graphics, simulations, regression, and custom programming. It also has a system to disseminate user-written programs that lets it grow continuously.
The name Stata is a syllabic abbreviation of the words statistics and data.[3] The FAQ for the official forum of Stata insists that the correct English pronunciation of Stata 'must remain a mystery'; any of 'Stay-ta', 'Sta-ta' or 'Stah-ta' are considered acceptable.[4]
There are four major builds of each version of Stata:[5]
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https://suppciconfi.tistory.com/33. Sacrificing upholds the religion of the Sun God and increases the happiness of the local populace.Britannia CampaignAt the beginning of the Britannia campaign in 1258, the British Isles are in chaos. In the far west, on Irish soil, England tenuously holds a network of fortresses that keep the Irish at bay. The Kingdom of England exercises influence over most of the Isles, but its power is contested from several theatres. They can also sacrifice populations upon capturing a settlement or they can sacrifice captured enemy troops. However, the chieftain Brian O'Neill has succeeded in uniting the Irish, and despite their lack of heavy infantry, with a strong push they may seize the island.
- Stata/MP for multiprocessor computers (including dual-core and multicore processors)
- Stata/SE for large databases
- Stata/IC, which is the standard version
- Numerics by Stata, supports any of the data sizes listed above in an embedded environment
Small Stata, which was the smaller, student version for educational purchase only, is no longer available.
User interface[edit]
Stata has always emphasized a command-line interface, which facilitates replicable analyses. Starting with version 8.0, however, Stata has included a graphical user interface based on Qt framework which uses menus and dialog boxes to give access to nearly all built-in commands. This generates code which is always displayed, easing the transition to the command line interface and more flexible scripting language. The dataset can be viewed or edited in spreadsheet format. From version 11 on, other commands can be executed while the data browser or editor is opened.
Data structure and storage[edit]
Stata can only open a single dataset at any one time. Stata holds the entire dataset in (random-access or virtual) memory, which limits its use with extremely large datasets. This is mitigated to some extent by efficient internal storage, as there are integer storage types which occupy only one or two bytes rather than four, and single-precision (4 bytes) rather than double-precision (8 bytes) is the default for floating-point numbers.
Stata Econometrics software, free download
The dataset is always rectangular in format, that is, all variables hold the same number of observations (in more mathematical terms, all vectors have the same length, although some entries may be missing values).
Data format compatibility[edit]
Stata can import data in a variety of formats. This includes ASCII data formats (such as CSV or databank formats) and spreadsheet formats (including various Excel formats).
Stata Econometric Software Tutorial
Stata's proprietary file formats have changed over time, although not every Stata release includes a new dataset format. Every version of Stata can read all older dataset formats, and can write both the current and most recent previous dataset format, using the saveold command.[6] Thus, the current Stata release can always open datasets that were created with older versions, but older versions cannot read newer format datasets.
Stata can read and write SAS XPORT format datasets natively, using the fdause and fdasave commands.
Some other econometric applications, including gretl, can directly import Stata file formats.
Extensibility[edit]
Stata allows user-written commands, distributed as so-called ado-files, to be straightforwardly downloaded from the internet which are then indistinguishable to the user from the built-in commands. In this respect, Stata combines the extensibility more often associated with open-source packages with features usually associated with commercial packages such as software verification, technical support and professional documentation. Some user-written commands have later been adopted by StataCorp to become part of a subsequent official release after appropriate checking, certification, and documentation.
User community[edit]
Stata had an active email list from August 1994 ('Statalist', over 1000 messages per month) which was turned into a web forum in March 2014 and is still called 'Statalist'.[7] StataCorp employees regularly contribute to Statalist. It is maintained by Marcello Pagano of the Harvard School of Public Health, and not by StataCorp itself.
Articles about the use of Stata and new user-written commands are published in the quarterly peer-reviewedStata Journal. The Stata Journal is a quarterly publication containing articles about statistics, data analysis, teaching methods, and effective use of Stata's language.
User Group meetings are held annually in the United States (the Stata Conference), the UK, Germany, and Italy, and less frequently in several other countries. Only the annual Stata Conference held in the United States is hosted by StataCorp LP. Local Stata distributors host User Group meetings in their own countries, however, Stata developers frequently travel to and present at these meetings. Established under the Societies Act on 10 May 2008, Singapore Stata Users Group is the world's first government-approved users group (Registration No: 2048/2008; Unique Entity No: T08SS0091A). Its slogan is 'Shaping Data Meaningfully'. As a non-profit organisation, StataUGS does not organise regular meetings but provides programming and statistical advice to users in Singapore through informal means. The active members of StataUGS are mostly engaged in biomedical research.
Example Stata code[edit]
To perform a linear (OLS) regression of y on x:
The optional part if allows to restrict the sample used in the command to a subset. For example, if the command should only be applied to the females in the sample, one could specify: if female 1.
To perform logistic regression of y on x:
To display a scatter plot of y against x restricted to values of x below 10:
To perform OLS regression of y on x with White's heteroscedasticity-consistent standard errors:
To calculate Akaike Information Criterion (AIC) and Bayesian Information Criterion (BIC) for regression:[8]
To code 'fizzbuzz':
Timeline of releases[edit]
Since 2000, StataCorp have released a new major release of Stata (incrementing the integer part of the version number) roughly every two years. Users must pay a fee if they wish to upgrade to the latest major release. Minor releases (incrementing the decimal part of the version number) are sometimes made available between major releases. These are available as free downloadable updates to those who have a licence for the previous major release. Dates of all releases are available on the Stata website.[9] Stata 16 was released on June 26, 2019.
Stata's versioning system is designed to give a very high degree of backward compatibility, ensuring that code written for previous releases continues to work.[10] However, users should be careful when they save or open data among different versions.
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See also[edit]
References[edit]
- ^http://www.stata-journal.com/article.html?article=gn0018
- ^'Who uses Stata?'. Stata. Retrieved 2017-06-28.
- ^'What is the correct way to write 'Stata'?'.
- ^'What is the correct way to pronounce 'Stata'?'.
- ^'Which Stata is right for me?'. Stata. Retrieved 2010-04-04.
- ^'Stata's 'help' entry for the save command'.
- ^http://www.statalist.org/forums/help
- ^'Choosing Regression Model in Stata'.
- ^'History of Stata'.
- ^'Stata help for
version'.
Further reading[edit]
- Bittmann, Felix (2019). Stata - A Really Short Introduction. Boston: DeGruyter Oldenbourg. ISBN978-3-11061-729-0.
- Pinzon, Enrique, ed. (2015). Thirty Years with Stata: A Retrospective. College Station, Texas: Stata Press. ISBN978-1-59718-172-3.
- Hamilton, Lawrence C. (2013). Statistics with STATA. Boston: Cengage. ISBN978-0-84006-463-9.
External links[edit]
Stata Econometric Software Examples
In order to begin doing any exploratory data analysis or econometric work, you need a dataset that can be opened by specialized econometric software such as those in STATA format (*.dta). (STATA is one of the most popular econometrics software programs and makes the application of econometric techniques possible for anyone who’s not a computer programming genius.)
If you’re downloading data from an online source, you may be able to obtain the data in STATA format. Many econometrics textbooks also give you access to data files in STATA format. In addition, the STATA program is preloaded with examples that you can use to familiarize yourself with the basic commands.
Econometric Software Packages
After opening STATA, you can access the sample datasets by selecting File→Example Datasets… If you want to open any other dataset that’s already in STATA format, select File→Open and then choose the file you want to work with. On the command line, you can open a STATA dataset by typing “use filename” and hitting return.
If you’re inputting data manually or downloading it in a non-STATA format, then you can use one of two methods to read it into STATA:
Select File→Import: This option can be used if the data is in Excel, SAS XPORT, or Text format. You select the appropriate format of your raw data, and then you’re prompted to select the file you’d like to import into STATA.
Select Data→Data Editor: This option opens an editor that resembles a spreadsheet. You can paste columns of data into the editor or input data manually.
Stata Econometric Software 2017
If you import a dataset that wasn’t originally in STATA format, you need to save the dataset in STATA format in order to use it again, particularly if you inputted data through the editor and want to avoid replicating all your efforts. Also, if you made any changes to an existing STATA dataset and want to retain those changes, you need to save the revised dataset.
Stata Econometric Software Free
Select File→Save As (or type “save new filename” on the command line) and choose a new name for the modified file. That way if you accidentally delete a variable or drop observations, you can always go back to the original data file.