Recent questions tagged R

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r - How to ignore case when using str_detect?

stringr package provides good string functions. To search for a string (ignoring case) one could use stringr:: ... way of rewriting it? See Question&Answers more detail:os...

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

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514 views

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r - How to check if a sequence of numbers is monotonically increasing (or decreasing)?

We are given a sequence of numbers, as a vector foo. The task is to find is foo is monotonically increasing - ... , but any more creative ideas? See Question&Answers more detail:os...

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

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522 views

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r - Avoiding type conflicts with dplyr::case_when

I am trying to use dplyr::case_when within dplyr::mutate to create a new variable where I set some values to missing and ... output c(5, NA, 3) See Question&Answers more detail:os...

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

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350 views

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r - grid.layout in ggplot

I'm using the following code to create three sets of plots in the amazing package ggplot2: w<-rnorm(100) x< ... without a blank page leading!)? See Question&Answers more detail:os...

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

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881 views

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r - How to automatically adjust the width of each facet for facet_wrap?

I want to plot a boxplot using ggplot2, and i have more than one facet, each facet has different terms, as follows: ... , 39L, 40L, 41L, 42L)) See Question&Answers more detail:os...

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

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632 views

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r - Plotly as png in knitr/rmarkdown

The following Rmarkdown renders the plotly 3D graph in HTML, but not in PDF. Testing plotly ```{r} library( ... be visible in non-HTML formats. See Question&Answers more detail:os...

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

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558 views

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r - Is there a way to add a scale bar (for linear distances) to ggmap?

Not that it's critical to my question, but here is my plot example, on top of which I'd like to add a scale bar. ... = 35.22, label = "PP Site") See Question&Answers more detail:os...

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

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594 views

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r - How do I preserve transparency in ggplot2?

I love the plots that ggplot generates. However, it is still somewhat cumbersome to get publication quality plots ... Is there a workaround? See Question&Answers more detail:os...

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

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r - Why is match.call useful?

In the body of some R functions, for example lm I see calls to the match.call function. As its help page ... the call in the resulting 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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548 views

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r - How to control the igraph plot layout with Fixed Positions?

I am trying to draw a network visualization to resemble a flow diagram. I'm fairly close with the ... layout = layout.reingold.tilford) See Question&Answers more detail:os...

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

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598 views

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r - How to do selective labeling with GGPLOT geom_point()

With this code: library(ggplot2) p <- ggplot(mtcars, aes(wt, mpg)) p + geom_point() p + geom_point() ... rest of the points remain unlabeled. See Question&Answers more detail:os...

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

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517 views

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r - How to replicate a ddply behavior that uses a custom function with dplyr?

I'm trying to replace all my plyr calls with dplyr. There are still a few snags and one of them is with the ... >% mm What am I doing wrong? See Question&Answers more detail:os...

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

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464 views

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r - What is a neat command line equivalent to RStudio's Knit HTML?

What is a neat command line equivalent to RStudio's Knit HTML? Given an .Rmd file, you can use RStudio to knit ... solution for .pdf or .docx? See Question&Answers more detail:os...

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

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686 views

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r - How to jitter text to avoid overlap in a ggplot2 scatterplot?

I would like to create a clean version of a scatterplot of text labels in ggplot2. The goal is to ... this type of visual representation. See Question&Answers more detail:os...

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

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419 views

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r - model.matrix() with na.action=NULL?

I have a formula and a data frame, and I want to extract the model.matrix(). However, I need the resulting matrix to ... 1 -0.7577394 0 0 0 1 See Question&Answers more detail:os...

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

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642 views

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r - Change the color of action button in shiny

I am trying to change the color of the action button from gray to orange. actionButton("run","Run Analysis") ... possible to change its color? See Question&Answers more detail:os...

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

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491 views

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r - Any way to pause at specific frames/time points with transition_reveal in gganimate?

Utilising this example from the package's wiki on Github: airq <- airquality airq$Month <- format(ISOdate(2004, ... argument he is referring to. See Question&Answers more detail:os...

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

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477 views

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r - Convert and save distance matrix to a specific format

I got a distance matrix with the following steps: x <- read.table(textConnection(' t0 t1 t2 aaa 0 1 0 bbb 1 ... ddd 0.6666667 ccc ddd 0.3333333 See Question&Answers more detail:os...

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

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566 views

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r - Odds ratios instead of logits in stargazer() LaTeX output

When using stargazer to create a LaTeX table on a logistic regression object the standard behaviour is to output ... should be left blank. See Question&Answers more detail:os...

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

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598 views

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r - use dplyr's summarise_each to return one row per function?

I'm using dplyr's summarise_each to apply a function to multiple columns of data. One thing that's nice is that ... , would you mind adding it? See Question&Answers more detail:os...

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

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407 views

1 answer

r - knitr: run all chunks in an Rmarkdown document

I have an .Rmd document which knitr process just fine. I would like to run all the chunks in the document, so ... Is there a way to do this? See Question&Answers more detail:os...

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

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650 views

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r - Rmarkdown directing output file into a directory

I found a really nice trick (link) to a function of knitr, where you can save your output html into ... ls()) everything works afterwards again See Question&Answers more detail:os...

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

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356 views

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r - How do I prevent exposure of my password when using RGoogleDocs?

I love RGoogleDocs and use it a lot. However, I don't like entering my password all the time. Obviously ... my password when using RGoogleDocs. See Question&Answers more detail:os...

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

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572 views

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r - Reading in chunks at a time using fread in package data.table

I'm trying to input a large tab-delimited file (around 2GB) using the fread function in package data.table. ... this be a new feature request? See Question&Answers more detail:os...

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

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621 views

1 answer

r - Label minimum and maximum of scale fill gradient legend with text: ggplot2

I have a plot created in ggplot2 that uses scale_fill_gradientn. I'd like to add text at the minimum and maximum ... ,na.value = "transparent") See Question&Answers more detail:os...

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

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768 views

1 answer

r - How to append a plot to an existing pdf file

I want to append a plot to an existing pdf long after dev.off() has been called*. After reading the pdf() ... the pdf device has been closed. See Question&Answers more detail:os...

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

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469 views

1 answer

r - Putting x-axis at top of ggplot2 chart

I feel like this should be obvious... all I'm trying to do is to remove the x-axis from the bottom of my ... what I'm looking for in ggplot2. See Question&Answers more detail:os...

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

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384 views

1 answer

r - street address to geolocation lat/long

I am considering rChart/LeafLet to create a shiny app for housing sales in my county. There are several ... map street address to geolocation. See Question&Answers more detail:os...

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

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