r Archives - Page 17 of 18

What is the difference between require() and library()?

What is the difference between require() and library()? 8 s 8 In addition to the good advice already given, I would add this: ...

April 29, 2022
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How can I view the source code for a function?

I want to look at the source code for a function to see how it works. I know I can print a function ...

April 29, 2022
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How should I deal with “package ‘xxx’ is not available (for R version x.y.z)” warning?

I tried to install a package, using install.packages("foobarbaz") but received the warning Warning message: package 'foobarbaz' is not available (for R version x.y.z) ...

April 28, 2022
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Plot two graphs in same plot in R

I would like to plot y1 and y2 in the same plot. x <- seq(-2, 2, 0.05) y1 <- pnorm(x) y2 <- pnorm(x, ...

April 28, 2022
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How to convert a factor to integer\numeric without loss of information?

When I convert a factor to a numeric or integer, I get the underlying level codes, not the values as numbers. f <- ...

April 28, 2022
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How can we make xkcd style graphs?

Apparently, folk have figured out how to make xkcd style graphs in Mathematica and in LaTeX. Can we do it in R? Ggplot2-ers? ...

April 25, 2022
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Rotating and spacing axis labels in ggplot2

I have a plot where the x-axis is a factor whose labels are long. While probably not an ideal visualization, for now I’d ...

April 20, 2022
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data.table vs dplyr: can one do something well the other can’t or does poorly?

Overview I’m relatively familiar with data.table, not so much with dplyr. I’ve read through some dplyr vignettes and examples that have popped up ...

April 19, 2022
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What are the differences between “=” and “

What are the differences between the assignment operators = and <- in R? I know that operators are slightly different, as this example ...

April 19, 2022
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How do I replace NA values with zeros in an R dataframe?

I have a data frame and some columns have NA values. How do I replace these NA values with zeroes? 26 s 26 ...

April 18, 2022
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