Software si Servicii
Analiza de date si statistica
Cercetare calitativa si cantitativa, analiza si modelarea cercetarii, esantionare probabilistica si neprobabilistica, culegerea de date, organizarea si curatarea bazelor de date, prelucrarea, analiza si interpretarea datelor cu metode avansate, reprezentare grafica de un nivel inalt
Stata este mai mult decat un pachet complet pentru statistica — este un sistem complet dedicat managementului datelor, continand solutii integrale pentru statistica si grafica aferenta. Dotat cu o interfata point-and-click rapida si intuitiva, dublata de puternicul set de comenzi disponibile prin linia de comanda
Software avansat de text mining si analiza de continut cu abilitati de analiza si manipulare fara precedent.
Considerat de multi ca fiind singurul produs de pe piata care reuneste cu adevarat metodele calitative de analiza a datelor
UPDATE “Like many of you, I am working from home and checking the latest news on COVID-19 frequently. I see a lot of numbers and graphs, so I looked around for the “official data”. One of the best data sources I have found is at the GitHub website for Johns Hopkins Whiting School of Engineering Center Read more about Stata Blog: Import COVID-19 data from Johns Hopkins University[…]
Dear Stata family, For the last several weeks, StataCorp has been monitoring and adapting to how COVID-19 is impacting our users and their communities around the globe. We are concerned for the health and safety of our customers and our associates alike, and we want to do our part to support healthy communities, wherever they Read more about STATA USERS – COVID-19 OUTBREAK[…]
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.