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A collective where data scientists and AI researchers gather to find, share, and learn about R and other subtags like knitr and dplyr.
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View all 1 bulletinsR Language has some news to share
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Pinned content
View all 3 collectionsR Language admins have deemed these posts noteworthy.
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49votes
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2 minute read
How to write a good R question with a reproducible example
This article is largely written based on https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-exampleWhen posting a question to Stack Overflow, you should include a minimal ...
anon
Pinned
18votes
3kviews
R Language Frequently Asked Questions
The questions that get asked repeatedly, gathered together in one place. What’s a question every R programmer asks at some point? Add it here! Grab questions from the r-faq tag to get them added ...
- 101
Can you answer these questions?
View all unanswered questionsThese questions still don't have an answer
0votes
0answers
44views
Using Precision-recall gain as the summary function in caret
Following on from Is there an R function to optimize the PRG AUC (area under the precision-recall-gain curve)?, I would like to use the area under the precision-recall-gain curve as the summary ...
- 7,749
0votes
0answers
38views
GTSUMMARY - Extract ARD & ARS json
I am generating a table with spanned header that requires tbl_merge. My code is as follows:# Load dataadvs <- pharmaverseadam::advs %>% filter(SAFFL == "Y" & VSTESTCD %in% c('...
- 12.4k
0votes
0answers
18views
DESeq2 used with zinbwave weights - Differences on contrasts calculations
I have been using DESeq2 together with weights obtained from the zinbwave package for shotgun data analysis (as proposed here in the case of single-cell applications: https://genomebiology....
0votes
0answers
54views
Error: package or namespace load failed for 'caret' (conda environment with r-base = 4.4.3 and r-essentials)
Set-upconda version 24.7.1Created new environment in anaconda prompt:conda create --name r_env2 conda conda-forge::r-essentials conda-forge::r-base=4.4.3Confirmed that r-essentials included caret ...
0votes
0answers
100views
How to reduce compilation time for complex ggplot graphics
I have a graphic in ggplot that takes too long to compile. Actually, the plot does not appear and I have to force R to stop the compilation. As far as I know, the code has no error, but perhaps due to ...
- 131k
Recommended answers
View all recommended answersThese answers have been recommended
0votes
1answer
31views
Get keyring passwords using dotenv to dynamically load main keyring password
I would like to load my keyring passwords via dotenv.library(keyring)library(dotenv)# Load environment variablesdotenv::load_dot_env()service_name <- Sys.getenv("KEYRING_SERVICE")...
Answer
You're missing keyring= in your call to keyring::key_set_with_value(). When I set that, it should no longer prompt for the system/default keyring.My .env file:KEYRING_SERVICE="quux"...
1vote
2answers
90views
String pattern to extract street number and name
I have a data frame with a column of street addresses, some of which include suite, apartment, floor, etc., which are not useful in retrieving the latitude and longitude of the address.I have ...
Answer
This looks like an XY-problem.You don't need to deal with those "unwanted" portions.data.frame( id = 1:5, full_address = c( "1600 Pennsylvania Ave NW, Washington, DC 20500, ...
2votes
2answers
74views
Customize Annotation in a ggplot2 with dynamic content and italics and supersripts [duplicate]
I'm looking to create a plot in R that dynamically retrieves and displays the results of a statistical test as an annotated text directly on the plot. I want to achieve precise formatting for the ...
- 47
Answer
You can use ggtext and html/markdown:myplot <- ggplot(df, aes(x=factor(resp), fill=resp))+ geom_bar(stat="count", width = 0.5) + ylab("N of occurences")+ ...
1vote
1answer
70views
How to tell mapshot not to crop leaflet or mapview maps
I recently noticed that every time I saved a leaflet map to file as PNG or PDF, my saved map boundaries are narrower than what my shiny app mainPanel is showing. I looked into the mapshot() arguments ...
Answer Accepted
mapshot captures the default viewport which does not necessarily match your app's actual container dimensions.Here, I am capturing dimensions of the leaflet container (both initially and on resize). ...
3votes
1answer
73views
modelsummary with `shape="cbind"`: put coefficients of different models in the same column [closed]
Consider the following example:library(palmerpenguins)library(modelsummary)library(marginaleffects)library(tidyverse)mydf <- palmerpenguins::penguinsmydf <- mydf %>% filter(species ...
- 4,721
Answer Accepted
Simply use rbind when creating the list of your models:modelsummary::modelsummary( list( "base" = rbind(res1, res2), "ctrl" = rbind(res3, res4) ), stars = TRUE)
See what's trending
View all trending questionsThese are the most active questions in R Language Collective
2464votes
23answers
485kviews
How to make a great R reproducible example
When discussing performance with colleagues, teaching, sending a bug report or searching for guidance on mailing lists and here on Stack Overflow, a reproducible example is often asked and always ...
- 76k
1511votes
21answers
1.4mviews
Sort (order) data frame rows by multiple columns
I want to sort a data frame by multiple columns. For example, with the data frame below I would like to sort by column 'z' (descending) then by column 'b' (ascending):dd <- data.frame(b = factor(c(...
- 2,950
991votes
30answers
2.2mviews
How do I replace NA values with zeros in an R dataframe?
I have a data frame and some columns have NA values.How do I replace these NA values with zeroes?
1052votes
25answers
2.0mviews
Drop data frame columns by name
I have a number of columns that I would like to remove from a data frame. I know that we can delete them individually using something like:df$x <- NULLBut I was hoping to do this with fewer ...
- 42.4k
1570votes
14answers
1.9mviews
How to join (merge) data frames (inner, outer, left, right)
Given two data frames:df1 = data.frame(CustomerId = c(1:6), Product = c(rep("Toaster", 3), rep("Radio", 3)))df2 = data.frame(CustomerId = c(2, 4, 6), State = c(rep("Alabama&...
- 2,950
Learn something new
These are the most recent articles in R Language Collective
49votes
4kviews
2 minute read
How to write a good R question with a reproducible example
This article is largely written based on https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-exampleWhen posting a question to Stack Overflow, you should include a minimal ...
anon
20votes
3kviews
3 minute read
Create multiple PDF/HTML reports using R Markdown in a loop
How to create multiple PDF/HTML reports in a loop using R MarkdownWith R Markdown, creating a PDF or HTML report is straightforward. But what if you want to create various reports? Furthermore, what ...
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