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View all 3 collectionsR Language admins have deemed these posts noteworthy.
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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
Pinned
49
votes
4k
views
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-example
When posting a question to Stack Overflow, you should include a minimal ...
anon
Can you answer these questions?
View all unanswered questionsThese questions still don't have an answer
0
votes
0
answers
25
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I have a JSON script which changes the pickerInput in my shiny app, however the dropdown list closes every time I click the group I want to select
I have this JSON script to make the pickerInput in my shiny app select all individuals by their respective groups, however the dropdown list closes every-time I select a group. I have tried to add evt....
- 21
1
vote
0
answers
49
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Is there a way to offset the phase of the pattern in geom_abline()?
I have 2 parallel, sometimes overlapping lines of different colors that I create with geom_abline(). Here's a basic example:
ggplot(data.frame(x=1:5,y=1:5)) +
geom_point(aes(x=x,y=y)) +
geom_abline(...
CommunityBot
- 1
3
votes
0
answers
34
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Using @inheritParams for arguments from another package gets CRAN warning about missing package anchors
I have a package that has existed quietly and happily on CRAN for some years but in the last few months have received this NOTE accompanied by email warnings that the package will be withdrawn if I ...
- 5,944
2
votes
0
answers
20
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RODBC for MacOS M4 Sequoia with Windows Authentication to MS SQL Server
I recently got a Macbook Pro with M4 processor and Sequoia OS. I have been using Windows machine for a while and now trying to figure out my settings.
In my PC, I was able to use Windows ODBC ...
- 147
2
votes
0
answers
43
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Trying to add a graphs series to high carter in R
I am trying to add a MACD graph section to the highcharter graph similar to volume section.
I have the code for creating same.
Not sure as how they will be added as seperate section similar to volume.
...
- 29.9k
Recommended answers
View all recommended answersThese answers have been recommended
1
vote
2
answers
21
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Creating (ggplot2-)boxplots based on integer x values with correct spacing on the x axis
I am trying to visualize my benchmarking results where for three values of the discrete hyperparameter p and two values of categorical hyperparameter q, I have 50 runtimes. I am trying to create a ...
- 128k
Answer
A pure {ggplot2} option would be to convert your p column to integers and to explicitly set the group aes: library(ggplot2) set.seed(123) min_ex <- data.frame( p = factor(rep(c(3, 10, 20), each ...
View answer
- 128k
0
votes
4
answers
104
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Plotting actual words as the bars in R [closed]
I have a list of text:
1996 Steven Harper - Immunopathogenesis of IgA nephropathy
1997 Nigel Brunskill - Pathogenic implications of proteinuria
1998 Albert Ong - Polycystic kidney disease
1999 ...
- 10.5k
Answer
Yet another ggplot option, if you want your labels to sit inside actual bars: library(tidyverse) df %>% mutate(nchar = nchar(Title)) %>% ggplot(aes(Year, 0)) + geom_label(aes(label = ...
View answer
- 176k
2
votes
1
answer
69
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Select and deselect an entire group of choices on a pickerInput from shinyWidgets
I am aware that there is a similar question that was answered pre 2023, but the internal structure of pickerInput has changed since. - Old Fix
I will also use the same reproducible example that was ...
- 29.9k
Answer
In the original solution in the other thread, event listeners "piled up" with no clean-up, which was breaking the functionality. Here, I am using .off() to remove duplicate event handlers ...
View answer
- 29.9k
2
votes
1
answer
65
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issue in MLE of New Generalized Poisson lindley Distribution
I am working with the New Generalized Poisson Lindley (NGPL) distribution, which is a two-parameter discrete distribution defined by parameters α (alpha) and β (beta).
I wrote an R function to ...
- 176k
Answer
The problem is for your pmf to be valid, alpha and beta need to be constrained. As I understand it from the original paper, alpha needs to be > 1 and beta needs to be > 0. If these constraints ...
View answer
- 176k
1
vote
1
answer
98
views
Usage of options(warn=2) and tryCatch() with purrr R library
I am most likely not doing the right thing below, why do I get different answers?
library(furrr)
fu=function(x){
options(warn=2)
b=x
tryCatch({b=as.numeric('b')},error=function(e){})
options(...
- 164k
Answer
Accepted
Up front: This is an "inadvertent feature" of future, and may not be avoidable without some (not insignificant) code-inspection and inference. (I also think it has nothing to do with furrr ...
View answer
- 164k
See what's trending
View all trending questionsThese are the most active questions in R Language Collective
2464
votes
23
answers
484k
views
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 ...
- 75.8k
1511
votes
21
answers
1.4m
views
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(...
- 2,958
989
votes
30
answers
2.2m
views
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?
1050
votes
25
answers
2.0m
views
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 <- NULL
But I was hoping to do this with fewer ...
- 42.2k
1570
votes
14
answers
1.9m
views
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&...
- 2,958
Learn something new
These are the most recent articles in R Language Collective
49
votes
4k
views
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-example
When posting a question to Stack Overflow, you should include a minimal ...
anon
20
votes
3k
views
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 Markdown
With 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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