Category "r"

Change sparkline coloring in shiny DT table

Below is the code to develop sparkline in R. Wanted to check if we can change the color . I mean the negative values to be black and positive values to be red l

Conditional mutate - creating a new variable with coalesce

I'm scraping data from a website and depending on the structure of the page. I have an inner join in my final table that either joins clean on WON and LOST vari

Can anyone help me with this crontab?

We want to download the stock price of Tesla every day, using the package "quantmod" in R. We managed to write the function that downloads the last available st

Spade in FlowJo v10.0

I have an issue with installing the spade package in R: > source("http://bioconductor.org/biocLite.R") Bioconductor version 3.7 (BiocInstaller 1.30.0), ?bio

Conditional formatting of multiple columns in gt table

This is my first post, so apologies if I messed something up. I am trying to apply conditional formatting to multiple columns (comparing results for samples Sam

Concatenating strings with multiple separators using paste() in R

See the following reproducible example: require(tidyverse) set.seed(1) reprex_df <- data.frame( var1 = sample(1:10), var2 = sample(11:20), var3 = sam

How to grep a string ending in a specific punctuation mark

I'm trying to grep strings that end in a dash in R, but having trouble. I've worked out how to grep strings ending in any punctuation mark, maybe not the best w

File not found error when running Maxent in biomod2

When I run Maxent into biomod2 I got this error: Error in file(file, "rt") : cannot open the connection In addition: Warning messages: 1: running command 'j

"Error in svd(c) : infinite or missing values in 'x'" when using synth() in R

I am using the synth package in R to implement a synthetic control method, where I use the dataprep() function to construct the appropriate matrices to be passe

Equivalent of validation plot in ggplot

I am trying to write the code to plot validationplot {pls}'s equivalent using ggplot. I could make this using base R, but could'nt figure out how to plot thi

Equivalent of validation plot in ggplot

I am trying to write the code to plot validationplot {pls}'s equivalent using ggplot. I could make this using base R, but could'nt figure out how to plot thi

LaTex not findable during rmarkdown render to pdf [duplicate]

I am havng trouble rendering pdfs in rmarkdown. Everything has been working fine until a point yesterday that I started getting this error mes

What are the differences between R's new native pipe `|>` and the magrittr pipe `%>%`?

In R 4.1 a native pipe operator was introduced that is "more streamlined" than previous implementations. I already noticed one difference between the native |&g

r shiny and ggplot2::facet_wrap how can I add categories to facet_wrap without having the original plot resize?

I have a shiny app that lets the user add categories to the facet_wrap. When I start with one category the plot fills the entire box but when I add a second cat

split the lines of a data frame into a variable number of lines based on a character in R [duplicate]

I have this df: df = data.frame(ID = c(1,2,3), A = c("h;d;c", "j;k", "k")) And i want to retrieve a new df with splited rows ba

split the lines of a data frame into a variable number of lines based on a character in R [duplicate]

I have this df: df = data.frame(ID = c(1,2,3), A = c("h;d;c", "j;k", "k")) And i want to retrieve a new df with splited rows ba

How to add_trace to a plotly object created from ggplotly in R

I want to be able to add a new line/trace to a plotly object. This plotly object will be created from a ggplot object using ggplotly. I tried 1. creating the pl

avoid "pandoc document conversion failed with error 61" for `github_document`

I keep failing to knit a github_document because of the error shown below. A solution to avoid this was provided in this question for html_document. But that ar

R phylo object: how to connect node label and node number

A phylo object in R can have internal node labels (phylo_obj$node.label), but many R functions use node numbers instead of the node labels. Even the phylo objec

Webscraping with right html_element in R

This code worked two weeks ago but is not working now. Is it possible that html_elements were changed? How can I get the updated ones - without not changing the