Recent questions tagged R

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r - Remove some of the axis labels in ggplot faceted plots

I have created a plot like the one here with ggplot2 package and facet_wrap function, and I would like to suppress some ... (~ color, nrow = 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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492 views

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r - automatically detect date columns when reading a file into a data.frame

When reading a file, the read.table function uses type.convert to distinguish between logical, integer, numeric, ... code here? Thank you. See Question&Answers more detail:os...

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

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567 views

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r - How do I run a function every second

I want to run a function that takes less than one second to execute. I want to run it in a loop every second. ... I don't know about? 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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550 views

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r - Finding the index of first changes in the elements of a vector

I have a vector v and I would like to find the index of first changes in elements of a vector in R. How can I do this? ... 1.5, 2, 2, 2, 2, 2) 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 - Error in bind_rows_(x, .id) : Column can't be converted from factor to numeric

I have ten datasets that have been read from Excel files, using the xlsx library, and stored in tibbles. I ... some kind of simple 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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495 views

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r - Why does ".." work to pass column names in a character vector variable?

The following code does work but I cannot find any documentation about the ".." (dot dot) operator in the data. ... : object '..cols' 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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727 views

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r - Remove zombie processes using parallel package

After I have played around for some time using R's parallel package on my Debian-based machine I still can't find ... killed if R is shut down. 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 - ggplot2: fill color behaviour of geom_ribbon

I am trying to colour ribbons in ggplot2. When using geom_ribbon, I am able to specify ymin and ymax and a fill ... done? 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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523 views

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r - Replace values in data frame with other values according to a rule

I am an beginner in R and don`t find a solution for the following problem. Any help would be really appreciated! ... "BGSFDS" with "BASF stock". 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 manipulate NULL elements in a nested list?

I have a nested list containing NULL elements, and I'd like to replace those with something else. For example: ... elements in a nested list? See Question&Answers more detail:os...

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

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873 views

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r - How to rotate legend symbols in ggplot2?

Consider for example this plot using the data mtcars and the function coord_flip library(ggplot2) library(Hmisc) ... I rotate these symbols? See Question&Answers more detail:os...

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

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409 views

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r - Adding multiple shadows/rectangles to ggplot2 graph

I am trying to add multiple shadows/rectangles over a ggplot2 graph. In this reproducible example, I am only adding 3 ... 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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556 views

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r - Prevent automatic conversion of single column to vector

I have a data frame like this: df = data.frame(a=1:3, b=2:4, c=3:5) I am selecting columns ... to a vector for single-column selections? See Question&Answers more detail:os...

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

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737 views

1 answer

r factor - R how to change one of the level to NA

I have a data set and one of its column has factor levels "a" "b" "c" "NotPerformed". How can I change all the "NotPerformed" factors to NA? See Question&Answers more detail:os...

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

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785 views

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r - NAs are not allowed in subscripted assignments

I have a simple issue, but I couldn't grasp the logic to overcome it. I have numeric vectors with NAs and ... NB. NAs mean Not Available values See Question&Answers more detail:os...

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

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984 views

1 answer

r - stargazer left align LaTeX table columns

stargazer automatically centres values within tables. How can I left align the columns? Put this code in an .Rnw ... This is the PDF output: See Question&Answers more detail:os...

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

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702 views

1 answer

r - Math of tm::findAssocs how does this function work?

I have been using findAssoc() with textmining (tm package) but realized that something doesn't seem right ... advice is highly 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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1.4k views

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r - mgcv gam() error: model has more coefficients than data

I am using GAM (generalized additive models) for my dataset. This dataset has 32 observations, with 6 predictor variables and ... = c(NA, 32L)) 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 - Rstudio shiny not able to use ggvis

I have an RStudio Shiny server running and I installed ggvis from https://github.com/rstudio/ggvis but I am not ... with no plot. Any 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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542 views

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r - Loops with captions with knitr

I am wondering if there is an easy way to produce a bunch of tables or graphics with variable captions in knitr. ... .Rnw');knit2pdf('doc.Rnw) See Question&Answers more detail:os...

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

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677 views

1 answer

r - Creating Shiny reactive variable that indicates which widget was last modified

Let's say we have a set of widgets each with their own input label. How do we create a reactive ... any help 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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766 views

1 answer

r - xgboost, offset exposure?

I am modelling a claims frequency (poisson distr) in R. I am using the gbm and xgboost packages, but it seems ... each time a claim is observed. See Question&Answers more detail:os...

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

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495 views

1 answer

r - Raster image goes below base layer, while markers stay above: xIndex is ignored

I'm building a simple Shiny + Leaflet R application to navigate a map over which a raster (from package raster) ... ## RUN: 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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555 views

1 answer

r - Rcmdr launch error in Yosemite (OS X 10.10)

After upgrading to OS X 10.10 Yosemite I started to receive the following error log when running my Rcmdr ... x troubleshooting didn't 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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568 views

1 answer

r - split string with regex

I'm looking to split a string of a generic form, where the square brackets denote the "sections" of the string. Ex: x ... ],",x) strsplit(x,",") See Question&Answers more detail:os...

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

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831 views

1 answer

r - using mean with .SD and .SDcols in data.table

I am writing a very simple function to summarize columns of data.tables. I am passing one column at a time ... of the apply functions. 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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520 views

1 answer

r - How do I quickly group the time column in a dataframe into intervals?

Assuming in R, I have a data.frame with the first column representing the time (as POSIXct). The rest of ... thing? Thanks in advance. Derek See Question&Answers more detail:os...

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

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475 views

1 answer

r - Why is the class of a vector the class of the elements of the vector and not vector itself?

I don't understand why the class of a vector is the class of the elements of the vector and not vector itself. ... (matrix) ## [1] "matrix" See Question&Answers more detail:os...

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

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