Category "r"

How to use grep to search for patterns matches within a list of data frames using a second list of character vectors in R

I have two lists in R. One is a list of data frames with rows that contain strings (List 1). The other is a list (of the same length) of characters (List 2). I

How do I use geom_bar to not take the frecuency of my class but another value?

Im trying to graph the number of bases (A,C,G,T) each of my viruses have on a single histogram. library(readxl) library(ggplot2) Bases <- read_excel("/Users/

How can I distinguish results in ifelse

I want distinguish between $p-values$ for t-test and $p-values$ for Wilicoxon in this code, How can I do that? replicate(1000, ifelse(shapiro.test(rnorm(4))$p.v

Data Frame- Add number of occurrences with a condition in R

I'm having a bit of a struggle trying to figure out how to do the following. I want to map how many days of high sales I have previously a change of price. For

Multiply columns in dataframe by values given in another dataframe

I've been trying to accomplish this in dplyr but not been able to figure it out. In one data frame (df1) I have columns with values. |A |B | |23 |43 | |24 |11

How to do sum and filter in rbind function

I am using an R package which extracts data from tables in a database based on the flag for each table. If the flag is 1, extract data from that table. If the f

How to split negative and positive bars by zero line in barplot?

My data have 2 numerical columns (positive and negative values) and 2 categorical variables. Now I want to plot negative and positive bars on same line, instead

How to count unique entries in a column across multiple columns in R

I have a data set that looks something like this data set example I am trying to find unique entries in each of the columns I managed to do it for 1 column util

How do you populate missing dates for lag?

Say that I have a dataset. date <- c("2004-02-01", "2004-03-05", "2004-08-09", "2004-08-13", "2004-10-20", "2004-11-02", "2008-01-05", "2008-02-03", "2008-08

In a dashboard made with R, how can I filter/unfilter based on selectInput?

I have created a simple dashboard (link here) to display some data in R using selectInput. How can I activate/deactivate a filter reactively, so that the output

Customize R linters in VSCode

I'm trying to customize the linter settings in VSCode for R but I'm a little confused. I've checked just about every source available, from SO questions to the

How to get the names of factor levels corresponding to fixed effect regression coefficients for a GAM in R?

I have a gam in R (mgcv package) with 7 parameters, and one of them is a fixed effect with 30 levels (30 names). I want to analyse the regression coefficients f

The cause of "bad magic number" error when loading a workspace and how to avoid it?

I tried to load my R workspace and received this error: Error: bad restore file magic number (file may be corrupted) -- no data loaded In addition: Warning mes

pivot_longer multiple variables of different kinds

I am trying to find a simple way to pivot_longer a dataframe that has multiple columns containing different data for each case. Using multiple names in names_to

How to make labels in boxplot vertical in R

I have too many labels on the x-axis. How can I project them vertically? I can't find the right arguments... boxplot(df$y$x, data=df, drop = TRUE, main = "Bo

How can I subset a list in r by extracting the elements that contain a string? [duplicate]

I have a list: mylist<-list() data<-1:162 listlabel<-c("a","bpt","b","fpt") for (i in 1:4){ label<-listlabel[i] mylist[[label]]<

RStudio error in windows: Running pdflatex.exe on file_name.tex.. (exit code -1073740791)

I am using Rstudio in windows 10. I am triying to create a pdf from a .tex file. However, when I compile the PDF, the following error appears: Running pdflatex.

Coin flip probability

I'm wondering what I should be doing here (please refer to image). I have already defined two vectors which are k=c(0,1) and v=c(runif(2,0.3,0.7)) where alpha=v

Extracting rows based on more than two partial strings that must all be part of the string

I want to extract rows that must contain two or more partial strings. For example, suppose I have the following data.table df <- data.table(player = c('A', '

Shiny datatable mode editable - restrict specific columns AND ROWS

I would like to restrict editable mode in datatable for columns and rows. For the moment, in this minimal example, I can edit only specific columns but it doesn