Recent questions tagged R

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How do I search for a string in a data.frame? As a minimal example, how do I find the locations ( ... the correct columns for these rows. See Question&Answers more detail:os...

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

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699 views

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r - ggplot2: Dashed Line in legend

I'm trying to create a histogram with two superimposed density plots. The problem: is I want one density to be ... ? Thank you very much! Rainer See Question&Answers more detail:os...

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

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716 views

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r - dplyr: mutate_at + coalesce: dynamic names of columns

I've been trying for awhile to combine mutate_at with coalesce in case in which names of columns are generated ... and pass it to coalesce? See Question&Answers more detail:os...

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

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512 views

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r - How to calculate Euclidian distance between two points defined by matrix containing x, y?

I am very lost in Euclidean distance calculation. I have found functions dist2{SpatialTools} or rdist{fields} to ... advice or any explanation. See Question&Answers more detail:os...

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

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411 views

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r - How do I plot a stacked bar with ggplot?

I have been going through the examples provided on this page, but for some reason unable to find the right way ... on how 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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539 views

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r - GADM-Maps cross-country comparison graphics

Maybe due to the fact I'm relatively new to R, I have problems using the gadm-Mapfiles on http://www. ... ://stackoverflow.com/a/33264548/263589 See Question&Answers more detail:os...

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

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564 views

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r - Object not found error with ggplot2

I can not get my head around this. These examples are working: # Function with geom_density gr.den <- function(var. ... 'var.name.1' not found See Question&Answers more detail:os...

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

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533 views

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r - Import date-time at a specified timezone, disregard Daylight Savings Time

I have time series data obtained from a data logger that was set to one time zone without daylight savings ( ... I modify some other setting? See Question&Answers more detail:os...

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

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722 views

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r - Parsimonious way to add north arrow and scale bar to ggmap

I am trying to use ggmap to create a map of the protected areas I am working in with a satellite image from ... using hundreds of lines of code? See Question&Answers more detail:os...

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

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752 views

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r - rmarkdown::render() in a loop - cannot allocate vector of size

I have a bunch of directories with Rmd files to be compiled into HTML. Each call to rmarkdown::render ... example to reproduce the problem. See Question&Answers more detail:os...

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

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948 views

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r - Remove white space between plots and table in grid.arrange

I would like to remove the large spacing that is inserted by default between the plots and the table in a ... this issue. Thanks in advance! See Question&Answers more detail:os...

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

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843 views

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r - Using plotmath in ggplot2 with percent sign (%)

I would like to use Greek characters, Latin characters and the percent sign in the facet labels of a ggplot2 ... to include the percent sign? 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

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r - How can I pass data between functions in a Shiny app

I have a shiny app where server.r including the following code shinyServer(function(input, output) { data <- ... function , 'data' cheers See Question&Answers more detail:os...

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

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511 views

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r - Adjusting the node size in igraph using a matrix

I have the following network diagram: set.seed(1410) df<-data.frame( "site.x"=c(rep("a",4),rep("b",4) ... 44 Any sugestions how I go about 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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797 views

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r - How to rotate the axis labels in ggplot2?

I have the following graph that I generated using ggplot2 I had finalPlot as the ggplot object. To add ... lines like Number of Solutions 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

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r - Multiple Groups in geom_density() plot

I am trying to plot 3 groups in one geom_density()plot. The data is in long format: MEI Count Region -2.031 ... + ylab("Density") a step closer See Question&Answers more detail:os...

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

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818 views

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r - How can I control the canvas size in ggplot?

Consider this simple ggplot: I drew a black edge on it, so it's easier to envision how large it is. I ... ), plot.background=element_blank()) q See Question&Answers more detail:os...

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

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457 views

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r - How to install Tidyverse on Ubuntu 16.04 and 17.04

I'm running Ubuntu 16.04 [now 17.04: see note in bold below] and R 3.4.1. I installed the latter ... a newer version of RStudio is installed. See Question&Answers more detail:os...

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

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508 views

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r - Can I use gsub() on each element of a data frame?

After importing a table from Wikipedia, I have a list of values of the following form: > tbl[2:6] $` ... , with results. Thanks in advance! See Question&Answers more detail:os...

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

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403 views

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r - Optimization with Constraints

I am working with the output from a model in which there are parameter estimates that may not follow a-priori expectations. I ... 2.2)) [1] 0.04 See Question&Answers more detail:os...

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

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651 views

1 answer

r - ggplot2: group x axis discrete values into subgroups

I would like to create a bar plot with ggplot2 in which the discrete values of the x axis would be grouped into ... yet). Thanks 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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535 views

1 answer

r - Select multiple columns with dplyr::select() with numbers as names

Let's say I have the following data frame: a <- runif(10) dd <- as.data.frame(t(a)) names(dd) <- c(" ... possible to do in one go with select()? See Question&Answers more detail:os...

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

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422 views

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r - Sum amount last 6 month prior to the date of transaction

This is my transaction data. It shows the transactions made from the accounts in from column to the accounts in to ... , class = "data.frame") 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

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r - Alpha aesthetic shows arrow's skeleton instead of plain shape - how to prevent it?

I'm aiming at building a bar plot with arrows at the end of bars. I went for geom_segment with arrow defined. I ... there a way to prevent 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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329 views

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r - fastest way to get Min from every column in a matrix?

What is the fastest way to extract the min from each column in a matrix? EDIT: Moved all the benchmarks to the answer ... ncol=40) # 40 x 40 ) See Question&Answers more detail:os...

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

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619 views

1 answer

r - Control transparency of smoother and confidence interval

I'm refering to this SO question from 2 years ago, with ggplot : Adjust Transparency (alpha) of ... line and the confidence interval? See Question&Answers more detail:os...

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

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438 views

1 answer

r - Knitr inline chunk options (no evaluation) or just render highlighted code

I cannot find information on whether it is possible to specify options for inline chunks in knitr. I've just tried ... ',' 1: eval=FALSE, See Question&Answers more detail:os...

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

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1.0k views

1 answer

r - Different y-limits on ggplot facet grid bar graph?

My data: day variable value 1 Fri avg1 446.521127 2 Mon avg1 461.676056 3 Sat avg1 393.366197 4 Sun avg1 435. ... y-axes. Is there a solution? See Question&Answers more detail:os...

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

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