Recent questions tagged R

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r - Passing by reference a data.frame and updating it with rcpp

looking at the rcpp documentation and Rcpp::DataFrame in the gallery I realized that I didn't know how to modify a ... "] = newCol; return; } See Question&Answers more detail:os...

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

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428 views

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r - Index element from list in Rcpp

Suppose I have a List in Rcpp, here called x containing matrices. I can extract one of the elements using ... this element to do computations. 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 - Conditional gsub replacement

I have text data (in R) and want to replace some characters with other characters in a data frame. I ... though there is no gsub involved. 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 - Stacke different plots in a facet manner

To train with ggplot and to improve my skills in writing R functions I decided to build a series of functions that ... time, nr)) + geom_area() 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 - Making a ternary plot

I want to plot the projection of 3-dimensional data on their simplex using ggplot2. I thought I could manage ... are appreciated. Many 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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773 views

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r - Plot decision boundaries with ggplot2?

How do I plot the equivalent of contour (base R) with ggplot2? Below is an example with linear discriminant ... .e. the decision boundaries). 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 - rCharts with Highcharts as shiny application

I have a shiny application consisting of three files. server.R, ui.R and the file to launch the application with ... but I didn't find anything. 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 - How to sort a matrix by all columns

Suppose I have arr = 2 1 3 1 2 3 1 1 2 How can I sort this into the below? arr = 1 1 2 1 2 3 ... , first by column one, then by column two etc. See Question&Answers more detail:os...

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

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480 views

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r - Passing by reference a data.frame and updating it with rcpp

looking at the rcpp documentation and Rcpp::DataFrame in the gallery I realized that I didn't know how to modify a ... "] = newCol; return; } 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 - %>% key binding / keyboard shortcut in Rstudio

I've been experimenting quite a bit with the increasingly popular %>% operator from the magrittr package. I've ... ://github.com/rstudio/rstudio 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 skip error checking at Rmarkdown compiling?

I was writing an Rmarkdown document (compile to HTML) in RStudio, and there are some code chunks that ... in the knitted HTML document? See Question&Answers more detail:os...

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

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589 views

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r - Setting Midpoint for continuous diverging color scale on a heatmap

I need to adjust the midpoint location for a heatmap via ggplot2. I've googled around and have seen ... midpoint range as the first? See Question&Answers more detail:os...

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

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358 views

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r - Stacked histograms like in flow cytometry

I'm trying to use ggplot or base R to produce something like the following: I know how to do histograms with ... like the y-axes to overlap. See Question&Answers more detail:os...

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

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761 views

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r - observeEvent Shiny function used in a module does not work

I'm developing an app in which I use modules to display different tab's ui content. However it seems like the ... ui = ui, server = server) See Question&Answers more detail:os...

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

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368 views

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r - Create polygon from set of points distributed

I need help on the R language from my code: inter1= read.table("C:/inter.csv", header=TRUE) inter1$xx< ... 24 6.5 19 32.6567036402505 See Question&Answers more detail:os...

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

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361 views

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r - Grouping with custom geom fails - how to inspect internal object from draw_panel()

This is a question related to a custom geom which is modified from this answer. The given geom failed with grouping, so I ... "", "", "")) ) See Question&Answers more detail:os...

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

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488 views

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r - Plotting continuous and discrete series in ggplot with facet

I have data that plots over time with four different variables. I would like to combine them in one plot using ... order as the sub-plots ? 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 - Add dynamic tabs in shiny dashboard using conditional panel

I would like to have dynamic tabs for my shiny app. I tried the below code ## app.R ## library(shiny) ... supposed to show the second tab. See Question&Answers more detail:os...

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

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697 views

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r - Multiple filled.contour plots in one graph using with par(mfrow=c())

I am trying to construct a graph consisting of 2-3 filled.contour plots next to each other. The color scale is ... it is natively in R possible. 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 - Change Dendrogram leaves

I want to modify the properties of the leaves in a dendrogram produced from plot of an hclust object. Minimally, ... what I would have guessed. See Question&Answers more detail:os...

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

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423 views

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r - Combined line & bar geoms: How to generate proper legend?

The legend for d2 looks fine; for d1, I would like to show just the hoizontal line against a white/transparent backgounnd. ... , "d2" = "red")) See Question&Answers more detail:os...

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

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525 views

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r - PCA FactoMineR plot data

I'm running an R script generating plots of the PCA analysis using FactorMineR. I'd like to output ... generated automatically plot(result1) See Question&Answers more detail:os...

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

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452 views

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r - How to extract data from a RasterBrick?

I have a RasterBrick consisting of monthly rainfall data over 7 years, so it has 7 layers with 12 slots each: ... of my code would be useful. See Question&Answers more detail:os...

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

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790 views

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r - Use href infobox as actionbutton

I was building an App with Rshiny. I have a couple of infoBoxand I would like to use the href option to make a ... ) }) }) shinyApp(ui,server) See Question&Answers more detail:os...

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

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743 views

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r - Adding Regression Line Equation and R2 on SEPARATE LINES graph

A few years ago, a poster asked how to add regression line equation and R2 on ggplot graphs at the link ... Thanks in advance for your help! See Question&Answers more detail:os...

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

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676 views

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r - Unquote the variable name on the right side of mutate function in dplyr

I am trying to make a function for a creating lagged variable using dplyr and function. But, the problem is that I cannot ... a1 4 2 a1 5 5 a1 See Question&Answers more detail:os...

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

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439 views

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r - ggplot2 multiline title, different indentations

I am generating graphs for a publication and I'd like to be able to label the panels of a figure in ... stuff to change indentation. 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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416 views

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r - Specifying the scale for the density in ggplot2's stat_density2d

I'm looking to create multiple density graphs, to make an "animated heat map." Since each frame of the ... has a different scale for each See Question&Answers more detail:os...

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

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