Questions tagged [tidyverse]
ONLY use this tag if your question relates to the installation, integration with your system, or inclusion of the entire tidyverse library. DO NOT USE if your question relates to one or two components of the tidyverse, such as dplyr or ggplot2. Use *those* tags, and tag with `r` as well for a better response.
tidyverse
10,129
questions
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How can I use a separate column value to choose how to fill in values using values_fn in pivot_wider? [duplicate]
I have a dataframe
descriptions names cutoffs vals
1 a A 90 1
2 a A 91 2
3 a B 90 3
4 a C 90 4
that I ...
- 1
1
vote
2
answers
29
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parallel/automatic way of unnesting list columns that contains data frames (list columns might be empty)
Please consider the following data frame:
df <- structure(list(oID = c(37751L, 30978L, 33498L),
peId = c(12L, 13L, 14L),
last_Name = c("ABC", &...
- 10.4k
1
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1
answer
50
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Little hack for ggplot -- an easy way to add a text with the real means and standard deviation when using lines or bars
I just want to add some text of real means and sd to my plots when I'm working with one outcome or multiple outcomes. see the pictures below for reference. Code is below. If any updated package ...
- 1,530
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38
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What is the preferred / recommended rlang metaprogramming syntax to use on both sides of an assignment operator in the `dplyr::mutate()` function?
I have a question about an issue that's similar to this older question about the dplyr::filter() function, except that my example is a bit more complicated because dplyr::mutate() needs to process ...
- 4,553
1
vote
1
answer
22
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Long to wide format based on variable suffixes in tidyverse in R
I wonder if there is a way for my DATA to be reformatted to my Desired_output below?
Specifically, for each unique study, we stick together a pair of pre and postNUMBER together, separately for T and ...
- 1,449
1
vote
2
answers
51
views
Use ifelse for several columns in R
My goal is to create a binary variable (k) that turns 1 if in any column between mpg and wt the values 3.90 and/or 160.0 appears.
Code
library(tidyverse)
mtcars<-mtcars%>%
mutate(k=ifelse(mpg:...
- 151
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votes
1
answer
19
views
Transforming value into row number
I am conducting some survival analysis and an attempting to turn my wide table into long format for analysis using dplyR. I want to turn the value of 'dead flies' into rows with a binary status for ...
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0
answers
23
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How to color the legend labels in ggplot [duplicate]
Using the iris dataset, we can make a boxplot and customise the legend when plotting using ggplot like so:
ggplot(data = iris, aes(x=Species, y=Sepal.Length, fill=Species))+
geom_boxplot()+
...
- 378
0
votes
1
answer
44
views
Is there a way to pass a string as a variable/column name to my function and use in a call to mutate?
I have a dataframe with a column indicating choices (of a survey) as well as a column indicating the index of the choice made in each row. e.g.,
df <- tibble(
record_id = 1:9,
choices = c(rep(&...
- 197
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votes
1
answer
25
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`pivot_longer` with`names_transform` [closed]
All examples I can find of pivot_longer using names_transform, have the following pattern:
df %>% pivot_longer(
...
names_to = "x",
names_transform = list(x = some_func) # ...
- 429
4
votes
1
answer
54
views
Is there a way to prevent facet labels from being equal width (after rotation)
When I apply a facet_grid, sometimes the labels are quite wide, sometimes so wide that they don't fit, and I have to rotate them. This isn't a problem unless I want to facet by multiple different ...
- 284
0
votes
1
answer
68
views
How to iterate a function for multiple values (Loop function)?
By running the following function, the output would be:
library(pmsampsize)
pmsampsize(type = "s", csrsquared = 0.5, parameters = 10, rate = 0.065,
timepoint = 2, meanfup = 2.07)
NB: ...
- 5
0
votes
1
answer
43
views
Change raster extent with tidy
I have files from ERA5 that have extent from 0 to 360 (lon) and -90 to 90 (lat)
Example:
> era5_sr
class : SpatRaster
dimensions : 721, 1440, 744 (nrow, ncol, nlyr)
resolution : 0.25, 0....
1
vote
2
answers
34
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In R, how to find the proportion of cases which have a value present in another column?
This seemed really simple to me at first, but is unexpectedly giving me trouble. Let's say my dataset looked like this:
mock <- tribble(~case_id, ~characteristic,
1, "A&...
1
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2
answers
46
views
Divide groups in other groups by date intervals
I'm dealing with dates and I wanted to group some rows together but I can't find how.
In my data, one row is an individual in a time interval and in a place. Something like that :
ind place ...
- 87