Shulou(Shulou.com)06/01 Report--

Today, the editor will share with you the relevant knowledge points about how R language reads the contents of files under a certain path in batches. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article, let's take a look at it.

R just started, can read a single file correctly feel that a small achievement, with the accumulation of time, a single file reading can no longer meet the needs, at this time, doing it in batches is the process of liberating the hands.

Use the for loop to read the downloaded TCGA data into R language and convert it into a data box

This is done with three for loops, the first for loop.

1. Read all the data into one folder

Dir.create ("data_in_one") # create a destination folder, or right-click to create a dir ("rawdata/") # to view the contents of the original path for (dirname in dir ("rawdata/")) {# # 1. The absolute path mydir of the individual folder to view

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