Titlebook: R for Stata Users; Robert A. Muenchen,Joseph M. Hilbe Book 2010 Springer Science+Business Media, LLC 2010 STATISTICA.Stata.data acquisitio

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BINGE

Minutes

Installing and Updating R,Stata and R are somewhat similar in that both are modular. Each comes with a single “binary” executable file and a large number of individual functions or commands. These are text files that users can modify in a text editor. Both applications come with their own built-in text editors, and both allow the use of outside text editors as well.

degradation

令人心醉

Programming Language Basics,R is an object-oriented language. Everything that exists in it — variables, data sets, functions (commands) — are all objects.

CEDE

Data Acquisition,R can read or import data from a wide range of sources. It includes a data editor for manual input, and it can access files in text as well as Stata format. For other topics, such as reading importing data from relational databases, see the R Data Import/Export manual [39].

激怒某人

Selecting Variables,In Stata, selecting variables for an analysis is simple, while selecting observations is often a bit more complicated. In R, these two processes can be almost identical. As a result, variable selection in R can at times be somewhat more complex. However, since you need to learn that complexity to select observations, it is not much added effort.

Derogate

Inclement

Data Management,There is an old rule of thumb that says 80% of your data analysis time is spent transforming, reshaping, merging, and otherwise managing your data. Stata has a reputation of being more flexible than R for data management. However, as you will see in this chapter, R can do everything that Stata can do on these important tasks.

Maximize

Enhancing Your Output,As we have seen, R output is quite sparse and not nicely formatted for word processing. As in Stata, you can improve R’s output by adding value and variable labels. You can also format the output to make beautiful tables to use with word processors, web pages, and document preparation systems.