Recent questions tagged R

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549 views

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r - Associate a color palette with ggplot2 theme

I want my ggplot2 theme to use a specific set of colors, but don't see how to avoid a separate line outside ... = mycolors) to a theme object See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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658 views

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r - How do I combine aes() and aes_string() options

Let's say I have a plot like this library(ggplot2) ggplot(mtcars, aes(x=wt)) + ylab("") + ... literal character values for aes_string()? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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801 views

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r - dplyr::first() to choose first non NA value

I am looking for a way to extract the first and last non-NA value from each group. I am using dplyr: ... tidyverse solution if one such exists? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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497 views

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r - S4 Classes: Multiple types per slot

Is it possible to create an S4 class, where one or more of the slots can be of multiple classes? ... documentation would be greatly appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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498 views

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r - ggplot object not found error when adding layer with different data

I have a plot with some points and I'd like to use segment to connect them dummy = data.frame(GROUP=c("A" ... found What am I doing wrong here? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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553 views

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r - qpdf.exe for compactPDF?

I am trying to check a package that I have built (with vignette) using R CMD check --as-cran [my package] ... install zlib and prec. Any tips? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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549 views

1 answer

r - How to set memory limit in RStudio (desktop version)?

I'm aware that there has already been a similar question here, but the answer is out-of-date. The ... running it in RStudio Desktop? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

1 answer

r - Disable saving history

Is it possible to disable saving command history / session in R by default ? I really hate those .RData and .RHistory files !! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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395 views

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r - How to filter a table's row based on an external vector?

(1) I have a large table read in R with more than a 10000 of rows and 10 columns. (2) The 3rd column of the ... Good 2 B YYY Dead 5 C UUU Dead See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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340 views

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r - How do I access the data frame that has been passed to ggplot()?

I want to set the string N=xxx as the title of my figure, where xxx is the number of observations in the ... that are used to modify the plot? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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593 views

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r - How to sort files list by date?

I'm using list.files(path, pattern, full.names = TRUE) to get a list of files in a specific directory. The ... R to keep them sorted by date? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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652 views

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r - How to check if a vector contains n consecutive numbers

Suppose that my vector numbers contains c(1,2,3,5,7,8), and I wish to find if it contains 3 consecutive ... the "1"s are not consecutive. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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436 views

1 answer

r - How do I call the `function` function?

I am trying to call the function `function` to define a function in R code. As we all know??, `function` ... how this (does not) works. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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723 views

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r s3 - S3 method consistency warning when building R package with Roxygen

I have created a roxygen file for a function that uses S3 an class. I roxygenize and then build and check and get ... LIS, overlap, equal.or)) } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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570 views

1 answer

r - Regular expressions (RegEx) and dplyr::filter()

I have a simple data frame that looks like this: x <- c("aa", "aa", "aa", "bb", "cc", "cc", "cc ... ) : argument "x" is missing, with no default See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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339 views

1 answer

r - find *all* duplicated records in data.table (not all-but-one)

if I understand correctly, duplicated() function for data.table returns a logical vector which doesn't contain first ... <- dups1 | dups2; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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934 views

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r - How to include NA in ifelse?

I am trying to create a column ID based on logical statements for values of other columns. For example, in ... changed? I appreciate any help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

422 views

1 answer

r - Generate a sequence of characters from 'A'-'Z'

I can make a sequence of numbers like this: s = seq(from=1, to=10, by=1) How do I make a sequence of characters ... 't work: seq(from=1, to=10) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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447 views

1 answer

r - How can I use spell check in Rmarkdown?

I want to write a report with Rmarkdown. However, I am a little worried about my spelling. I hope there is a ... a way to solve this problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

711 views

1 answer

r - Change facet label text and background colour

How can I change the grey facet labels (A and B) into say red background with white text? library(data.table) ... + facet_wrap(~z) + theme_bw() See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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455 views

1 answer

r - Convert a vector into a list, each element in the vector as an element in the list

The vector is like this: c(1,2,3) #[1] 1 2 3 I need something like this: list(1,2,3) #[[1]] #[1] 1 # #[[2]] #[1 ... (c(1,2,3)) #[[1]] #[1] 1 2 3 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

722 views

1 answer

r - how to change strip.text labels in ggplot with facet and margin=TRUE

I have looked here but still can't figure it out. How do I change the strip.text.x labels in a ggplot with ... ()+facet_grid(.~speed, margin=T) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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373 views

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r - Beginner tips on using plyr to calculate year-over-year change across groups

I am new to plyr (and R) and looking for a little help to get started. Using the baseball dataset ... Any guidance woud be appreciated. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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538 views

1 answer

r - Shiny + ggplot: How to subset reactive data object?

I am making a shiny app, that shows the user a ggplot after he selects the daterange he is interested in (= the range ... )))) print(s) }) }) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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506 views

1 answer

r - Reshape data from long to wide, with time in new wide variable name

I have a data frame that I would like to merge from long to wide format, but I would like to have the time ... in the wide format. Any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

731 views

1 answer

r - shiny: open new browser tab from within shiny app

From within shiny I want to open a HTML page in a new browser tab. Here it is pointed out that I need JS for ... app. How can I go about it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

535 views

1 answer

r - Extract URLs with regex into a new data frame column

I want to use a regex to extract all URLs from text in a dataframe, into a new column. I have some older code ... 3 motel is a hotel 1/4/2013 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

746 views

1 answer

r - Spread vs dcast

I have a table like this, > head(dt2) Weight Height Fitted interval limit value 1 65.6 174.0 71.91200 pred lwr ... .3 73.22669 pred upr 91.40919 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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