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New posts in r-faq

Test if characters are in a string

r regex string r-faq

Plotting two variables as lines using ggplot2 on the same graph

r ggplot2 graph time-series r-faq

Order Bars in ggplot2 bar graph

r ggplot2 r-faq

How does one reorder columns in a data frame?

r sorting dataframe r-faq

How can I trim leading and trailing white space?

r whitespace trim removing-whitespace r-faq

Sample random rows in dataframe

r dataframe random r-faq

Elegant way to check for missing packages and install them?

r packages r-faq

How to add leading zeros?

r formatting number-formatting r-faq

Why is `[` better than `subset`?

r filter subset r-faq

Extracting specific columns from a data frame

r dataframe r-faq

Combine a list of data frames into one data frame by row

r list dataframe r-faq

How can two strings be concatenated?

r string-concatenation r-faq

How do I install an R package from source?

r package installation r-faq

How to write trycatch in R

r exception exception-handling try-catch r-faq

How to sum a variable by group

r dataframe aggregate r-faq

How to find the statistical mode?

r statistics r-faq

Counting the number of elements with the values of x in a vector

r vector count r-faq

Quickly reading very large tables as dataframes

r import dataframe r-faq

Create an empty data.frame

r dataframe r-faq

Drop unused factor levels in a subsetted data frame

r dataframe r-factor r-faq
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