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Questions tagged [quosure]

79 questions
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Dynamic variable names using SE mutate function

I don't know how to cut dynamic variables into groups within a for loop. df is the data frame that contains clm_april - clm_sept variables that are double. Also I would like to put different names for new columns. Groups which are different for…
Luka
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Using dplyr quosures with mutate()

Reading the Programming with dplyr guide, I get a unexpected error. In fact, trying the examples with summarize works quite right, but if I try similar things with mutate, the code won't run. Here is my code : df =…
Dan Chaltiel
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using non-standard evaluation with formula Bis

Non-Standard evaluation in R. I want to send a formula to a function that uses lm. I have a data frame with one response: y and many predictors. I will fit a model inside a function. The function will receive a filtering criteria as a string and…
Harlan Nelson
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R - rlang - Working with delayed evaluation

Trying to solve the following use case: I have a full data set (mydf) which I want to dplyr::group_by with different variable sets according to the entries of another set of combinations of variables (mysplits). The issue is, my mysplits data.frame…
jameselmore
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Great than sign and quosure producing error

I am encountering an issue when using dplyr in a function. When filtering based on a quosure, the > sign appears to cause an issue where no data are returned. For example: temp_df <- data.frame( startdate_c = as.Date(c("2011-08-08", "2007-09-01",…
GenericNameNumber
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Problem using the Tidyverse Filter Function to Create My Own Functions

I appreciate any help that can be given. I am working with a data set on bacterial growth. I have collected the data, which has eight variables, and used 'pivot_longer' for optimal plotting. I have three different treatments: experimental, negative…
BigScienceBoy
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creating a nested tibble

I would like to create a tibble that contains a nested tibble, but also a column outside the nested tibble that refers to a column header within the nested tibble. This is what I mean library(tidyverse) tib <- tibble(dat = list(tibble(xvar = 1,…
Andrew
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Error: Quosures can only be unquoted within a quasiquotation context, function with plotly

i have created a function with a plot result, but i have this error message: Error: Quosures can only be unquoted within a quasiquotation context. Bad: list(!!myquosure) Good: dplyr::mutate(data, !!myquosure) when i erase the enquo() function, it…
Daniela saba rosner
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How to assign a quosure to another object?

I want to change the name of some argument. Following the guidelines, I should use lifecycle::deprecate_warn and then attribute the old name to the new name. However, in my function, the argument is normally used with quosures, so the attribution…
Dan Chaltiel
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Selecting columns from dataframe programmatically when column names have spaces

I have a dataframe which I would like to query. Note that the columns of that dataframe could change and the column names have spcaes. I have a function that I want to apply on the dataframe columns. I figured I could programmatically find out what…
user3510503
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Using quosure inside ggplot function annotate

I have produced the below scatter plot function. scatter_fun<-function(data,xval,yval,xlabel,ylabel, labels){ xval <- enquo(xval) yval <- enquo(yval) ggplot(data, aes(!!xval, !!yval))+ geom_smooth(method=lm, se=FALSE)+ …
awz1
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Get all combinations of a character vector

I am trying to write a function to dynamically group_by every combination of a character vector. This is how I set it up my list: stuff <- c("type", "country", "color") stuff_ListStr <- do.call("c", lapply(seq_along(stuff), function(i) combn(stuff,…
Thomas Price
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How to incorporate the suffix of an output$suffix name into an input$suffix_rows_selected function in R shiny?

I am trying to get the suffix of an output$suffix name in R Shiny and incorporate it into the input$suffix_rows_selected function. The drilldown table is coming empty. Would someone have any idea of what am I doing wrong? Function that I am trying…
Suzy
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`enquo` of column name variable not working with `dplyr::filter`

Suppose we have the following data frame: df <- data.frame(x=1:10, odd=rep(c(T,F), 5)) And a variable that stores the name of the odd column: odd_col <- 'odd' How do I use odd_col to reference the odd column in a dplyr::filter operation? From what…
merv
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Mapping over a list of variables using quosures

Lets say I want to use purrr::map to create a list of models, each using a different variable as a predictor. I would imagine I could do something like this: library(tidyverse) myvars <- vars(cyl, disp, hp) list_of_models <- map(myvars, function(x)…
kmace
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