data frame

Selection in R

June 1, 2012 | John Mount

The design of the statistical programming language R sits in a slightly uncomfortable place between the functional programming and object oriented paradigms. The upside is you get a lot of the expressive power of both programming paradigms. A downside of this is: the not always useful variability of the language’... [Read more...]

How to convert contingency tables to data frames with R

March 14, 2012 | ronan

I wanted to write contingency tables in HTML with hwrite(). I realized that the method hwrite() does not exist for the table objects. I could use, but the table produced is non-intuitive. I did a search on R-bloggers and I quickly found the solution to my problem: ... [Read more...]

data.frame objects in R (via “R in Action”)

December 18, 2011 | Tal Galili

The followings introductory post is intended for new users of R.  It deals with R data frames: what they are, and how to create, view, and update them. This is a guest article by Dr. Robert I. Kabacoff, the founder of (one of) the first online R tutorials websites: Quick-R.  ... [Read more...]

Identifying Records in Data Frame A That Are Not Contained In Data Frame B – A Comparison

October 12, 2011 | songpants

Yesterday I launched my first question at Stackoverflow and apparently did a lot of things wrong as I managed to get my question closed wihtin hours I had collected 9 different solutions to the problem and made the mistake to put it all within the original ... [Read more...]

Useful functions for data frames

August 9, 2010 | Ralph

The R software system is primarily command line based so when there are large sets of data it is not easy to browse the data frames. There are various useful functions for working with data frames. For example, after loading data from a text file we might want to view ... [Read more...]

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