Recent questions tagged R

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r - Using parLapply and clusterExport inside a function

I asked a related question here and the response worked well: using parallel's parLapply: unable to access variables ... 'text.var' 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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398 views

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r - How to order a data frame by one descending and one ascending column?

I have a data frame, which looks like that: P1 P2 P3 T1 T2 T3 I1 I2 1 2 3 5 52 43 61 6 "b" 2 6 4 ... at once. How do I get my sort correct? See Question&Answers more detail:os...

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

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279 views

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r - Time-series - data splitting and model evaluation

I've tried to use machine learning to make prediction based on time-series data. In one of the ... use createTimeSlices for model evaluation? See Question&Answers more detail:os...

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

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809 views

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r - Clickable links in Shiny Datatable

I created a table containing some HTML links using Shiny's renderDataTable. The links are not clickable, though, instead ... 0.11... 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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427 views

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r - RMarkdown in Shiny Application

Problem Is there a way to insert (and evaluate) an RMarkdown script in a shiny application. (Note, I am not ... ) { } 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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313 views

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r - Show that Shiny is busy (or loading) when changing tab panels

(Code follows after problem description) I am working on making a web app with Shiny, and some of the R commands that I ... seconds.")) }) }) }) See Question&Answers more detail:os...

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

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282 views

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r - How to request an early exit when knitting an Rmd document?

Let's say you have an R markdown document that will not render cleanly. I know you can set the knitr ... automate debugging in this situation? See Question&Answers more detail:os...

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

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335 views

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r - How to sum data.frame column values?

I have a data frame with several columns; some numeric and some character. How to compute the?sum of a specific ... the sum of all the weights? See Question&Answers more detail:os...

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

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420 views

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r - how to use black-and-white fill patterns instead of color coding on Calendar Heatmap

I'm using Paul Bleicher's Calendar Heatmap to visualize some events over time and I'm interested to add black-and ... the states in this 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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326 views

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r - How to do a data.table merge operation

note: this question and the following answers refer to data.table versions < 1.5.3; v. 1.5.3 was released ... the rest of y entirely... 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

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r - ggplot2 pdf import in Adobe Illustrator missing font AdobePiStd

I created several simple ggplot2 plots and saved them to PDF files using the following commands: p <- ggplot( ... PDF format directly in AI 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 - Embedding googleVis charts into a web site

Reading from the googleVis package vignette: "With the googleVis package users can create easily web pages with interactive ... a joomla 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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413 views

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r - Can't change fonts in ggplot/geom_text

I can't set my fonts in geom_text. Here is what I tried: labels_test<-data.frame(a=c("a","b","c"),b ... . Any ideas what is still going 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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594 views

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r - How to fix spaces in column names of a data.frame (remove spaces, inject dots)?

After importing a file, I always try try to remove spaces from the column names to make referral to column ... <- NULL names(ctm2) See Question&Answers more detail:os...

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

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311 views

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r - Graph flow chart of transition from states

I'm trying to find a way to graph something like this in R: It is a transition between states, I want the ... quickly get this off the ground? See Question&Answers more detail:os...

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

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346 views

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r - How to get the second sub element of every element in a list

I know I've come across this problem before, but I'm having a bit of a mental block at the moment. and as I ... there a better 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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381 views

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r - ddply + summarize for repeating same statistical function across large number of columns

Ok, second R question in quick succession. My data: Timestamp St_01 St_02 ... 1 2008-02-08 00:00:00 ... same result but with less keystrokes? 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

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r - Convergence error for development version of lme4

I am attempting to do a power analysis for a mixed-effects model using the development version of lme4 and ... .81578947368421, -1.81578947368421, -1.81578947368421, -1.8157894736...

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

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363 views

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r - Principal Components Analysis - how to get the contribution (%) of each parameter to a Prin.Comp.?

I want to know to what degree a measurement/parameter contributes to one of the calculated principal components. ... is my information hidden? See Question&Answers more detail:os...

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

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402 views

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r - Regression with Heteroskedasticity Corrected Standard Errors

I would like to find the R implementation that most closely resembles Stata output for fitting a Least Squares ... dynamic R is. 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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472 views

1 answer

r - What are examples of when seq_along works, but seq produces unintended results?

What are good examples of when seq_along will work, but seq will produce unintended results? From the documentation ... seq_along in that case. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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524 views

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r - ggplot: How to increase spacing between faceted plots?

I have several faceted histograms (obtained with the command below) which are nicely plotted one under the other. ... facet_grid (Location ~ .) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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289 views

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r - Topic models: cross validation with loglikelihood or perplexity

I'm clustering documents using topic modeling. I need to come up with the optimal topic numbers. So, I ... cannot figure that out either. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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976 views

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r - How to change color in shiny dashboard?

(cross post from shiny google groups) Could some one point me to the tag names that I have to modify ... SideBarMenu" is selected / highlighted. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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510 views

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r - How to plot the results of a mixed model

I use lme4 in R to fit the mixed model lmer(value~status+(1|experiment))) where value is continuous, ... graphically depict the fixed effects? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

1 answer

r - write.table writes unwanted leading empty column to header when has rownames

check this example: > a = matrix(1:9, nrow = 3, ncol = 3, dimnames = list(LETTERS[1:3], LETTERS[1:3 ... a.txt', row.names=FALSE) Cheers, yannick See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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315 views

1 answer

r - developing shiny app as a package and deploying it to shiny server

I am developing a shiny app and since I wanted to use automated testing and documentation of the function, I ... use on a Ubuntu Server. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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574 views

1 answer

r - Plot random effects from lmer (lme4 package) using qqmath or dotplot: How to make it look fancy?

The qqmath function makes great caterpillar plots of random effects using the output from the lmer package. That is, ... a question about that. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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