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 ...

Berthold♦

answered Aug 2, 2023 at 17:39

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How-to guide

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

created Aug 28, 2023 at 18:58

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How can I programmatically determine the imports for an R function?

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R package installation error - gfortran giving 'no input files' error

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user36196

modified 1 hour ago

2 votes

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Removing outside border line in R map

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lailaps

11.4k

modified 16 mins ago

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How to instantiate R6 class programmatically?

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Alphabetical ordering of y-axis in complex ggplot2

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Jan

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r2evans

167k

modified 4 hours ago

Answer Accepted

The I(..) portion within env= is used "to escape automatic conversion" (https://rdatatable.gitlab.io/data.table/articles/datatable-programming.html#substitute-variables-and-character-values),...

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r2evans

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Build forest plot for estimate comparison of multiple models using ggplot2. How to add text of CI?

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Allan Cameron

178k

answered Nov 25 at 12:33

Answer

It takes quite a lot of placing of graphical elements to get you from a basic ggplot to a labelled forest plot. Your two-level grouping (model and parameter) also means that whatever output you are ...

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Allan Cameron

178k

answered Nov 25 at 12:33

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Creating a unique animal identifier using multiple id columns some with missing data [duplicate]

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Reed

modified Nov 24 at 17:40

Answer Accepted

How about grouping by species, ear_tag, and pit_tag, and assign the current group id? Starting with your df with its "animal_id", we can easily reproduce it with: library(dplyr) df <- ...

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r2evans

167k

answered Nov 24 at 17:39

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R geom_contour_filled date scale

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stefan

130k

modified Nov 20 at 12:07

Answer Accepted

One option would be to pass a function to the labels= argument of the scale to convert the interval boundaries to date labels in your desired format: library(tidyverse) ggplot(predictions) + aes(x =...

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stefan

130k

answered Nov 20 at 11:50

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step_rename does not work like dplyr::rename

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r2evans

167k

modified Nov 17 at 13:35

Answer Accepted

It appears that step_rename doesn't honor the named-shortcut supported by any_of and dplyr::rename. (This is further suggested by the step_*_at functions which mimic since-superseded mechanisms in ...

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Drop data frame columns by name

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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&...

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