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What's the differences between & and &&, | and || in R? : Why there are four logical operators: &, && |, || What's the differences in usage? Yes, I've checked the docs, yet I'm a little bit confused. The docs says: ?&? and ?&&?
r - How to add table of contents in Rmarkdown? - Stack Overflow : I am using RStudio for writing markdown documents and want to add Table of Contents (TOC) at top of the documents so that the user could click the relevant section for reading. There were some rele...
shell - '\r': command not found - Stack Overflow : You'll need to first configure your editor to use Unix-like line endings or use dos2unix command to change it automatically, e.g. dos2unix ./NetworkUtility.sh Read more details at: '\r': command not found. If you're using Vagrant, check: Windows CRLF to Unix LF Issues in Vagrant
r - What are the differences between "=" and - Stack Overflow : R's syntax contains many ambiguous cases that have to be resolved one way or another. The parser chooses to resolve the bits of the expression in different orders depending on whether = or <- was used. To understand what is happening, you need to know that assignment silently returns the value that was assigned.
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Difference between modes a, a+, w, w+, and r+ in built-in open function : On Windows, b appended to the mode opens the file in binary mode, so there are also modes like rb, wb, and r+b. Python on Windows makes a distinction between text and binary files; the end-of-line characters in text files are automatically altered slightly when data is read or written.
R: Assign variable labels of data frame columns - Stack Overflow : Stupid question maybe, but R-script doesn't support variable labels out-of-the-box? I mean, you always need an additional package with functions to add or change the labels?
r - Replace specific characters within strings - Stack Overflow : I would like to remove specific characters from strings within a vector, similar to the Find and Replace feature in Excel. Here are the data I start with: group <- data.frame(c("12357e", "125...