plyr

GDPlay - Chrome Web Store

Grab Google Drive streaming links (redirector.googlevideo.com/videoplayback?..). You can use it for video players (jwplayer, videojs, plyr etc).

What is the dplyr equivalent of plyr::ldply (tapply) in R?

Viewed 9k times. Part of R Language Collective. 15. Ultimately, I am trying to achieve something similar to the following, but leveraging dplyr instead of plyr: library (dplyr) probs = seq (0, 1, 0.1) plyr::ldply (tapply (mtcars$mpg, mtcars$cyl, function (x) { quantile (x, probs = probs) })) # .id 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% # 1 ...

dlply function - RDocumentation

plyr. plyr is a set of tools for a common set of problems: you need to split up a big data structure into homogeneous pieces, apply a function to each piece and then combine all the results back together. For example, you might want to: fit the same model each patient subsets of a data frame. quickly calculate summary statistics for each group.

PDF A quick introduction to plyr - seananderson.ca

Learn R Programming. plyr (version 1.8.9). Description. Usage Value

r - Rename .id column in ldply - Stack Overflow

I am trying to apply the ldply function from the plyr package to convert lists to a data frame but I keep running into an error. I apply the following line: final <- plyr::ldply(data, data.frame) Which returns this error: Error: Error in (function (..., row.names = NULL, check.rows = FALSE, check.names = TRUE, :

PDF A quick introduction to plyr - seananderson.ca

In this post, we explore the functionality provided by the plyr package. The ideas behind this package are described in this paper by Hadley Wickham. However, rather than trying to understand the theoretical underpinnings of the package, we look at some of the useful functions provided by this package and how they work. Anyone using R seriously will have come across the apply family of functions.