What is the difference between \r\n, \r, and \n? [duplicate]
What is difference in a string between \r\n, \r and \n? How is a string affected by each? I have to replace the occurrences of \r\n and \r with \n, but I cannot get how are they different in a stri...
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How to find out which package version is loaded in R?
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r - Extracting specific columns from a data frame - Stack Overflow
I have an R data frame with 6 columns, and I want to create a new data frame that only has three of the columns. Assuming my data frame is df, and I want to extract columns A, B, and E, this is the...
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r - Convert a list to a data frame - Stack Overflow
I have a nested list of data. Its length is 132 and each item is a list of length 20. Is there a quick way to convert this structure into a data frame that has 132 rows and 20 columns of data? Here...
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