Informații din pagina producătorului (https://www.stata.com/why-use-stata/):
Stata este un pachet software complet, integrat, care vă oferă tot ceea ce aveți nevoie pentru analiza datelor: manipularea datelor, vizualizarea, analiza statistică și elaborarea de rapoarte.
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Stata’s data management features give you complete control.
- Import, export
- ODBC, SQL
- Sort, match, merge, join, append, create
- Built-in spreadsheet
- Process text or binary data
- Access data locally or on the web
- Collect statistics across groups
- BLOBs—strings that can hold entire documents
- Billions of rows
- Hundreds of thousands of variables
- Survival data, panel data, multilevel data, survey data, multiple-imputation data, categorical data, time-series data
Stata makes it easy to generate publication-quality, distinctly styled graphs.
You can point and click to create a custom graph. Or you can write scripts to produce hundreds or thousands of graphs in a reproducible manner. Export graphs to EPS or TIFF for publication, to PNG or SVG for the web, or to PDF for viewing. With the integrated Graph Editor, you click to change anything about your graph or to add titles, notes, lines, arrows, and text.
All the tools you need to automate reporting your results.
- Dynamic Markdown documents
- Create Word documents
- Create PDF documents
- Create Excel files
- Schemes for graphics
- Word, HTML, PDF, SVG, PNG
Truly reproducible research
Lots of folks talk about reproducible research.
Stata has been dedicated to it for over 30 years.
We constantly add new features; we have even fundamentally changed language elements. No matter. Stata is the only statistical package with integrated versioning. If you wrote a script to perform an analysis in 1985, that same script will still run and still produce the same results today. Any dataset you created in 1985, you can read today. And the same will be true in 2050. Stata will be able to run anything you do today.
We take reproducibility seriously.
When it comes time to perform your analyses or understand the methods you are using, Stata does not leave you high and dry or ordering books to learn every detail.
Each of our data management features is fully explained and documented and shown in practice on real examples. Each estimator is fully documented and includes several examples on real data, with real discussions of how to interpret the results. The examples give you the data so you can work along in Stata and even extend the analyses. We give you a Quick start for every feature, showing some of the most common uses. Want even more detail? Our Methods and formulas sections provide the specifics of what is being computed, and our References point you to even more information.
Stata is a big package and so has lots of documentation – over 15,000 pages in 31 volumes. But don’t worry, type help my topic, and Stata will search its keywords, indexes, and even community-contributed packages to bring you everything you need to know about your topic. Everything is available right within Stata.
We don’t just program statistical methods, we validate them.
The results you see from a Stata estimator rest on comparisons with other estimators, Monte Carlo simulations of consistency and coverage, and extensive testing by our statisticians. Every Stata we ship has passed a certification suite that includes 3.2 million lines of testing code that produces 4.9 million lines of output. We certify every number and piece of text from those 4.9 million lines of output.
Easy to use
All of Stata’s features can be accessed through menus, dialogs, control panels, a Data Editor, a Variables Manager, a Graph Editor, and even an SEM Diagram Builder. You can point and click your way through any analysis.
If you don’t want to write commands and scripts, you don’t have to.
Even when you are pointing and clicking, you can record all your results and later include them in reports. You can even save the commands created by your actions and reproduce your complete analysis later.
Easy to grow with
Stata’s commands for performing tasks are intuitive and easy to learn. Even better, everything you learn about performing a task can be applied to other tasks. For example, you simply add if gender==”female” to any command to limit your analysis to females in your sample. You simply add vce(robust) to any estimator to obtain standard errors and hypothesis tests that are robust to many common assumptions.
The consistency goes even deeper. What you learn about data management commands often applies to estimation commands, and vice-versa. There is also a full suite of post-estimation commands to perform hypothesis tests, form linear and nonlinear combinations, make predictions, form contrasts, and even perform marginal analysis with interaction plots. These commands work the same way after virtually every estimator.
Sequencing commands to read and clean data, then to perform statistical tests and estimation, and finally to report results is at the heart of reproducible research. Stata makes this process accessible to all researchers.
Easy to automate
Everyone has tasks that they do all the time—create a particular kind of variable, produce a particular table, perform a sequence of statistical steps, compute an RMSE, etc. The possibilities are endless. Stata has thousands of built-in procedures, but you may have tasks that are relatively unique or that you want done in a specific way.
If you have written a script to perform your task on a given dataset, it is easy to transform that script into something that can be used on all of your datasets, on any set of variables, and on any set of observations.
Easy to extend
Some of the things you automate may be so useful that you want to share them with colleagues or even make them available to all Stata users. That’s also easy. With just a little code, you can turn an automation script into a Stata command. A command that supports standard features that Stata’s official commands support. A command that can be used in the same way official commands are used.
Stata also includes an advanced programming language—Mata.
Mata has the structures, pointers, and classes that you expect in your programming language and adds direct support for matrix programming.
Though you don’t need to program to use Stata, it is comforting to know that a fast and complete programming language is an integral part of Stata. Mata is both an interactive environment for manipulating matrices and a full development environment that can produce compiled and optimized code. It includes special features for processing panel data, performs operations on real or complex matrices, provides complete support for object-oriented programming, and is fully integrated with every aspect of Stata.
Stata also has comprehensive Python integration, allowing you to harness all the power of Python directly from your Stata code.
Stata even let’s you incorporate C, C++, and Java plugins in your Stata programs via a native API for each language.
Stata is so programmable that developers and users add new features every day to respond to the growing demands of today’s researchers.
With Stata’s Internet capabilities, new features and official updates can be installed over the Internet with a single click.
World-class technical support
Stata technical support is free to registered users, which means you get much more than you pay for.
We have a dedicated staff of expert Stata programmers and statisticians to answer your technical questions. From tricky data management solutions to getting your graph looking just right and from explaining a robust standard error to specifying your multilevel model, we have your answers.
Stata will run on Windows, Mac, and Linux/Unix computers; however, our licenses are not platform specific.
That means if you have a Mac laptop and a Windows desktop, you don’t need two separate licenses to run Stata. You can install your Stata license on any of the supported platforms. Stata datasets, programs, and other data can be shared across platforms without translation. You can also quickly and easily import datasets from other statistical packages, spreadsheets, and databases.
Used by researchers for more than 30 years, Stata provides everything you need for data science—data manipulation, visualization, statistics, and reproducible reporting.
Select your discipline and see how Stata can work for you.
|Can’t find your discipline? See who else is using Stata »|
Stata is distributed in more than 180 countries. Our authorized distributors offer services such as basic technical support and training, and carry Stata inventory so delivery is fast.
Stata’s YouTube channel is the perfect resource for new users to Stata, users wanting to learn a new feature in Stata, and professors looking for aids in teaching with Stata. We have over 250 videos on our YouTube channel that have been viewed over 4 million times by Stata users wanting to learn how to label variables, merge datasets, create scatterplots, fit regression models, work with time-series or panel data, fit multilevel models, analyze survival data, perform Bayesian analylsis, and use many other features of Stata. View the complete list of videos.
We write the official Stata Blog, Not Elsewhere Classified (NEC), to share things we think you will find instructive, informative, or just plain entertaining. We have written about how to interpret statistical results; export results into Word, Excel, and LaTeX; perform Monte Carlo simulations; program your own estimators; and more. We also post service and product announcements. Individually signed, the articles in NEC are written by the same people who develop and support Stata.
Free Stata webinars
Stata webinars offer something for everyone. Those new to Stata will get a head start when they join our Ready. Set. Go Stata webinar. Both new and experienced users will want to join our one-hour feature webinars; each one provides an in-depth look at one of Stata’s statistical, graphical, data management, or reporting features.
A multitude of training options are available to become proficient at Stata quickly. Stata provides hands-on classroom and web-based training courses, customized on-site training courses, and online training through NetCourses, webinars, and video tutorials.
Stata Press® publishes books, manuals, and journals about Stata and general statistics topics for professional researchers of all disciplines. Stata Press® publications, along with books recommended by StataCorp, can be found in the Stata Bookstore.
The Stata News is a free publication with columns such as the popular In the Spotlight, where Stata developers give insight into specific Stata features, and the User’s corner, where we share unique, helpful, and fun contributions from the user community. The News also contains announcements such as new releases and updates, training schedules, new books, Conferences, and Users Group meetings.
The Stata Journal is a quarterly publication containing articles about statistics, data analysis, teaching methods, and effective use of Stata’s language. The Journal publishes reviewed papers together with shorter notes and comments, regular columns, book reviews, and other materials of interest to researchers applying statistics in a variety of disciplines.
Stata Conference and Users Group meetings
Whether you are a beginner or an expert, you will find something just for you at the Users Group meetings, which are held each year in various locations around the world. These meetings showcase in-depth presentations from StataCorp experts and experienced Stata users that focus on helping you use Stata more effectively.
A great resource for users is Statalist, a forum where more than 30,000 Stata users exchange over 4,500 postings and responses each month. Statalist is run and moderated by Stata users and maintained by StataCorp.
Our users love to share how great Stata is, so we’d like to show you! When we receive nice comments about Stata, we post them here. If you think Stata is great too, send us an email with your comment, and we may share it with the Stata community.
Stata is not sold in modules, which means you get everything in one package!
Stata offers several purchase options to fit your budget. You can choose an annual license to ensure you always have access to the latest features, or you can choose a perpetual license. Contact a sales representative or browse our products to find out more about our affordable options
Stata Campus GradPlanTM – Romania
Începând din luna aprilie 2018, un număr de cinci universități din România au fost incluse în lista (foarte scurtă) a țărilor dinafara SUA în care se aplică licențierea tip ”Stata Campus GradPlan”:
- Universitatea Alexandru Ioan Cuza Iași
- Universitatea Babeș-Bolyai Cluj-Napoca
- ASE București
- Universitatea București
- Universitatea de Vest din Timișoara
Prețurile sunt excelente și aplicabile facultăților și personalului afiliat.
Important: GradPlan se aplică și la upgrades, la fel, prețurile fiind semnificativ mai mici față de licențierea de tip educațional „clasică”.
Rugăm mail pentru cotații de preț!
Stata Campus GradPlanTM sites – Romania
- Alexandru Ioan Cuza University
- Babes-Bolyai University
- Bucharest University of Economic Studies
- West University of Timisoara
- University of Bucharest
Comenzi si informatii la: statasales[at]token.com.ro
IC, SE, MP_2
Stata 16 soseste in mai multe variante, SE, IC sau MP. Diferenta intre acestea sta in volumul de date procesat. Pentru cresterea vitezei de lucru si utilizarea procesoarelor moderne cu arhitecturi multicore, Stata 16 vine cu variantele MP (multi-procesor) pentru procesoare cu 2, 4, 8, 16, 32 de nuclee.
IMPORTANT! Inca de la versiunea 15, pretul pentru MP a scazut continuu, astfel aceasta optiune devenind foarte atractiva si accesibila! Aceasta politica continua cu Stata 16.
Detalii asupra puterii de procesare si realului castig in utilizarea MP AICI.
Tipuri de Stata si caracteristici – verificati in tabelul de aici:
Platforme / Sisteme de operare copatibile:
Stata pentru Windows®
- Windows 10 *
- Windows 8 *
- Windows 7 *
- Windows Server 2019, 2016, 2012, 2008, 2003 *
ATNETIE! Incepand cu versiunea 16, Stata ofera suport doar pentru sisteme de operare pe 64-bits
Verifică aici dacă sistemul este compatibil 64-bit.
Stata pentru Mac®
- Stata pentru macOS necesită procesoare 64-bit Intel® (Core™2 Duo sau peste) sub MacOS 10.11 sau mai nou
Vezi aici dacă sistemul tau MacOS este compatibil.
- Orice sistem pe 64-bit (x86-64 sau compatibil) sau 32-bit (x86 sau compatibil) care rulează Linux
- Pentry xstata este necesară instalarea GTK 2.24 sau peste
Necesar hardware / Hardware requirements:
|Stata/MP||4 GB||1 GB|
|Stata/SE||2 GB||1 GB|
|Stata/IC||1 GB||1 GB|
- Obs. Stata pentru Unix necesită o placă video capabilă să afișeze mii de culori sau peste (16-bit sau 24-bit color)
Stata EDUCATIONAL LICENSE
Pentru cadre didactice si personal stiintific afiliat!
Daca sunteti cadru al unei universitati, angajat sau afiliat, puteti beneficia de licentierea Stata de tip “EDU”, la fel ca si institutiile acreditate. Principalul avantaj este pretul Acesta este un mare avantaj si un excelent ajutor acordat de catre Stata universitatilor si universitarilor din intreaga lume. Pentru informatii suplimentare va rugam contactati-ne folosind adresa de e-mail sau formularul de contact de mai jos!
Doriti dotarea unui laborator de statistica?
Stata ofera universitatilor licentierea de tip StudentLab dedicata studiului statisticii la ora de curs si seminar. Licentierea minima este pentru minimum 10 utilizatori, putand fi adaugati oricati utilizatori suplimentari ulterior, costurile fiind extrem de avantajoase!
- Pentru utilizatori simultani: Licența Student Lab se poate instala pe un server, sau pe calculatoarele dintr-un laborator dedicat. O configurație de tip „virtual-lab” este acceptabilă.
- Pentru număr fix de utilizatori: Licența Student Lab poate fi instalată pe calculatoare individuale (desktop și/sau laptop).
Licențierea de tip StudentLab este disponibilă doar sub forma de licențe anuale!
IMPORTANT: Deținătorii de licențe perpetue, eliberate anterior, vor putea în continuare să solicite upgrade pentru acestea. O licență Student Lab deja achiziționată va fi ținută de prevederile de licențiere valabile la data achiziției. ATENȚIE: licențele perpetuepot fi instalate doar pe server, pt utilizare simultană pe maximum de stații contractate!
Esti student – indiferent de nivel – si ai nevoie de un soft statistic pentru studiu? Avem o veste excelenta! Stata ofera o licentiere speciala de tip “student” studentilor interesati, toate variantele, la preturi imbatabile. Licentierea poate fi pe un semestru, anuala sau perpetua. Trebuie doar sa ai carnetul vizat sau o adeverinta de la facultate. Scrie-ne pe mail sau folosiți formularul de mai jos!
Important de știut la achiziție
Politica de preturi pe care o practicam este foarte flexibila si trebuie retinut faptul ca fiecare noua achizitie beneficiaza de un discount de volum, progresiv cu numarul de licente achizitionate, incepand chiar de la a doua licenta! Indiferent daca achizitionati ami multe licente individuale, sau mai multi utilizatori de tip network, discountul de volum este aplicabil! Daca se doreste achizitionarea de mai multe licente, acestea pot fi combinate, pentru a acoperi cat mai bine necesarul Dvs.
Licentierea Stata standard este de doua feluri:
- Anuala – licentierea anuala va asigura ca intotdeauna aveti la dispozitie ultimele caracteristici
- “Pe viata” (perpetual license) – aceasta inseamna ca odata achizitionata, licenta pentru acea varianta de Stata nu expira.
Cumparatorul Stata 16 poate opta pentru “mentenanta anuala” (un an, standard, sau doi ani, extinsa), avantajul fiind un discount la pretul intreg pentru cei care cumpara mentenanta extinsa. Aceasta optiune va permite sa platiti o taxa anuala pentru a primi urmatoarea versiune Stata fara a plati nimic in plus (cost upgrade zero), costul optiunii fiind adaugat pretului standard.
Simplu! Contactati-ne prin e-mail, telefon sau folosiți frmularul de contact de mai jos pentru o cotatie de pret si o oferta adaptata la nevoile Dvs. Cand v-ati decis, este suficient sa ne inaintati o comanda prin e-mail si livrarea se face in cel mai scurt timp.
Revanzare? Firmele care doresc sa revanda Stata in Romania sau in alte tari, pe baza de comanda din parte unor clienti, sunt invitate sa solicite informatii.
IMPORTANT! Fiecare achizitie a unei licente Stata este conditionata de acceptarea licentei end-user EULA (End-User License Agreement). Documentul este disponibil aici (PDF, doar limba engleza). Acest acord intervine direct si exclusiv intre cumparator si StataCorp LLC. Token Communication nu incheie alte intelegeri, nu livram alte documente si nu preluam responsabilitatea Stata sau a unor terti in privinta licentelor sau a produslui software. Interfata este in limba enngleza, la fel si documentatia. Deocamdată nu există disponibile traduceri în limba română sau în altă limbă, pentru niciuna dintre acestea.
Alege Stata pentru performanta si siguranta maxima in analiza datelor.
Stata va este oferit cu un set atotcuprinzator de documentatie completa, extins odata cu versiunea curenta la un numar impresionant de peste 15.000 de pagini (31 de volume) cu explicatii si exemple, metode, formule si referinte bibliografice. Documentatia este livrata pe fiecare DVD de instalare sau in varianta download intr-un format electronic optimizat (PDF) pentru usurinta navigarii si cautarii.
Informatii despre documentatia completa Stata AICI
- Learning Stata
- Adding features to Stata
- Training on Stata
- Social media and online discussion
- Video tutorials on using Stata
- Books about Stata
- Blogs about Stata
- Stata examples and datasets
- Utilities and services to enhance the use of Stata
Your data tell a story, and data visualization helps you communicate your story clearly and efficiently. If you’re looking for a structured approach to creating high-impact Stata graphs for scientific work, check out the Graph Workflow website, created by Demetris Christodoulou. The Graph Workflow model introduced here is a systematic approach to data visualization. It teaches you Read more about Stata Community corner: Graph Workflow[…]
Bayesian models have a lot to offer researchers, but the core computational tool of these models—Markov chain Monte Carlo—can be slow and is susceptible to nonconvergence. And when the Markov chain does not converge, you do not want to rely on the results for inference. Want a formal diagnostic for Markov chain convergence? Want to Read more about STATA Blog: Bayesian inference using multiple Markov chains[…]
IMPORTANT! STATA 16.1 – update gratuit pentru toti utilizatorii The Stata development team just released Stata 16.1, a free update for all Stata 16 users. This latest update includes new features in the Do-file Editor, meta-analysis, frames, multilevel models, choice models, and Word document creation. To get the update, launch Stata 16 and type update Read more about STATA 16.1 – free update for all Stata 16 users[…]
Book Highlights: Clear, intuition-based explanations of time-series concepts and methods Introductions to simple and complex time-series and forecasting techniques, from smoothing and ARIMA to VARs and VECs Illustrations of time-series analyses using real-world data Worked examples that demonstrate how to implement analyses in Stata Practical advice from an author with decades of experience analyzing time-series Read more about Stata Bookstore: Introduction to Time Series Using Stata, Revised Edition by Sean Becketti[…]
As more organizations move their IT, data management, and data analysis needs to the Cloud, I often have to answer these questions: Can Stata run in the Cloud? Am I allowed to run my copy of Stata in the Cloud? What is the best setup for Stata in the Cloud? How does Stata perform in Read more about STATA Blog: Stata in the Cloud[…]
Why is the lasso interesting? The least absolute shrinkage and selection operator (lasso) estimates model coefficients and these estimates can be used to select which covariates should be included in a model. The lasso is used for outcome prediction and for inference about causal parameters. In this post, we provide an introduction to the lasso Read more about STATA Blog: An introduction to the lasso in Stata[…]
High-dimensional models, which have too many potential covariates for the sample size at hand, are increasingly common in applied research. The lasso, can be used to estimate the coefficients of interest in a high-dimensional model. This post discusses commands in Stata 16 that estimate the coefficients of interest in a high-dimensional model. Mai mult
This blog post is not meant to be an introduction to frames. There is a detailed introduction to frames in the Stata 16 manual that will make you an expert.
Why use lasso to do inference about coefficients in high-dimensional models? High-dimensional models, which have too many potential covariates for the sample size at hand, are increasingly common in applied research. The lasso can be used to estimate the coefficients of interest in a high-dimensional model. This post discusses commands in Stata 16 that estimate Read more about Stata blog: Using the lasso for inference in high-dimensional models[…]
26 iunie – a fost lansată versiunea 16 a produsului software statistic Stata. Așa cum ne-am obișnuit, noua versiune vine cu noutăți deosebite, adaptate cerințelor secolului XXI. Între acestea amintim lasso – un instrument esențial atât în analiza inferențială cât și în cea predictivă -, posibilitatea de a lucra simultan cu mai multe seturi de Read more about NOU! A apărut STATA 16[…]