I have listed some useful functions below: with() The with( ) function applys an expression to a dataset. It is similar to DATA= in SAS. # with(data, expression) # example applying a t-test to a data frame mydata with(mydata, t.test(y ~ group)) Please look at other examples here and here. by() The by( ) function … More Useful functions in R
Given below is a list of useful cheatsheets for R: Data Wrangling in R ggplot2 Cheatsheet Shiny Cheatsheet devtools Cheatsheet markdown Cheatsheet, reference Data Exploration Cheatsheet
Ryan Swanstrom OK, the steps are not that easy. They are all doable, and most of the steps are free or very low-cost. They will just take some time. Thanks to the fine folks at DataCamp, creator of online data science courses, for the infographic. Source: blog.datacamp.com View original post
Originally posted on Learning R:
The data visualization package lattice is part of the base R distribution, and like ggplot2 is built on Grid graphics engine. Deepayan Sarkar’s (the developer of lattice) book Lattice: Multivariate Data Visualization with R gives a detailed overview of how the package works. All the figures and code used to…
Originally posted on mathbabe:
I spend my time at work nowadays thinking about how to start a company in data science. Since there are tons of companies now collecting tons of data, and they don’t know what do to do with it, nor who to ask, part of me wants to design (yet another) dumbed-down…
Ujjwal Karn 