plyr

plyr source: R/ldply.r - R Package Documentation

Introduction The base R system provides lapply() and related functions, and the package plyr provides alternatives that are worth considering. It will be assumed that readers are familiar with lapply() and are willing to spend a few moments reading the plyr documentation, to see why the illustration here will use the ldply() function. The test task will be extraction of latitude (and then both ...

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

r - Using ldply with unequal lengths from strsplit - Stack Overflow

2018/11/19. (本博客中使用的数据已全部替换为随机数) 在上一次的工作中，我将文件的批量处理执行地更加彻底，基本上驾轻就熟了。. 并且发现了plyr里很有用的工具：ldply来配合我的文件批处理。. 批量读取文件. months <- 201801:201810. jdall <- list() for(i in 1:length(months)){.

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Using R: plyr to purrr, part 1 | R-bloggers

7 Plotting with plyr You can use plyr to plot data by throwing away the output with an underscore (_). This is a bit cleaner than a for loop since you don't have to subset the data manually.