Recent questions tagged R

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r - How to divide between groups of rows using dplyr?

I have this dataframe: x <- data.frame( name = rep(letters[1:4], each = 2), condition = rep ... chaining multiple group_by and summarise calls). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Multi line title in ggplot 2 with multiple italicized words

I am trying to create a plot title manually formatted on two lines which includes two italicized words, I ... the following mangled title: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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455 views

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r - Boxplot of table using ggplot2

I'm trying to plot a boxplot graph with my data, using 'ggplot' in R, but I just can't do it. Can ... without any relation "column by column". See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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550 views

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r - Applying gsub to various columns

What is the most efficient way to apply gsub to various columns? The following does not work x1=c("10%", ... where the percentage columns are. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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599 views

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r - Add legend to "geom_bar" using the ggplot2 package

I am a newbie to R, so please pardon my ignorance. I made a pseudo-stacked barplot in which I drew 4 sets of bars ... and can't get it to work. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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336 views

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r - Redirect in Shiny app

I'm trying to make my Shiny app to redirect the user to another page. I'm using httr to send GET requests ... ( actionButton(button1, "btn") )) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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425 views

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r - passing unevaluated expressions to C/C++

I'd like to pass a variable number of arguments from a function to C/C++, but would like to leave the arguments ... this is going to be in Rcpp. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Compute the mean of two columns in a dataframe

I have a dataframe storing different values. Sample: a$open a$high a$low a$close 1.08648 1.08707 1.08476 1. ... achieve that the smartest way? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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950 views

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r - flexdashboard - change title bar color

I want to change the title bar color of a flexdashboard. I've found an example for removing it - SE here, ... ---- ### Clustered Data Result: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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401 views

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r - Converting a "map" object to a "SpatialPolygon" object

I am guessing there is a simple solution to the problem I have been having, but I am having some trouble. I am trying ... *, "class")= chr "map" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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420 views

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r - dplyr group by colnames described as vector of strings

I'm trying to group_by multiple columns in my data frame and I can't write out every single column name in the ... can't figure this one out. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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533 views

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r - pivot_longer with multiple classes causes error ("No common type")

I am running pivot_longer on multiple columns (i.e. two character columns and one numeric). I am encountering an error ... ", values_to = "val") See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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524 views

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r - Getting the column names of a Data Frame with sapply

I want to get the columns names of a Data Frame with the following code: DF <- data.frame(X=c(1,2), Y=c ... can I do this, thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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472 views

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r - How to apply geom_smooth() for every group?

How can I apply geom_smooth() for every group ? The code below uses facet_wrap(), so plots every group in a ... 1))) + facet_wrap(~ Species) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

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r - What is the internal implementation of lists?

I am curious how an object of type list is implemented. Is it a dynamic vector that will automatically increase its size ... key is not O(1). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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577 views

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r - Using 'rvest' to extract links

I am trying to scrape data from Yelp. One step is to extract links from each restaurant. For example, I search ... help me with that? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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624 views

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r - Hide certain columns in a responsive data table using DT package

I am trying to create a responsive data table for my shiny application using DT package. I want to hide ... do that? Update: Example output See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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326 views

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r - as(x, 'double') and as.double(x) are inconsistent

x <- 1:10 str(x) # int [1:10] 1 2 3 4 5 6 7 8 9 10 str(as.double(x)) # num [1: ... as type conversion. Is there a reason for this inconsistency? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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r - How to adjust the Font Size of tableGrob

Any idea how to adjust the font size of a tableGrob? I am using gridExtra 2.0.0, which seem to be very ... table, header, and rowname as well. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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276 views

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r - using Source() in Shiny

I have a working R application that I want to make available online using Shiny. My application receives a file as ... file in my current app). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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490 views

1 answer

r - First day of the month from a POSIXct date time using lubridate

Given a POSIXct date time, how do you extract the first day of the month for aggregation? library(lubridate) full.date ... -01-01 00:00:21") See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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973 views

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r - Display frequency instead of count with geom_bar() in ggplot

On this page, they give the following example library(ggplot2) library(reshape2) ggplot(data=tips, aes(x=day)) + ... . How can I achieve this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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266 views

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r - How to import only one function from another package, without loading the entire namespace

Suppose I'm developing a package, called foo, which would like to use the description function from the memisc ... .formula in my environment ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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425 views

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r - Wavelet reconstruction of time series

I'm trying to reconstruct the original time series from a Morlet's wavelet transform. I'm working in R, package ... but no one really help me. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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609 views

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r - How to plot Pie charts in haploNet Haplotype Networks {pegas}

I'm trying to use haploNet function of {pegas} to plot a haplotype network, but i`m having trouble putting ... different colors in the network. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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334 views

1 answer

r - Create and Call Linear Models from List

So I'm trying to compare different linear models in order to determine if one is better than another. However I ... ) Thank you for your help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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423 views

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r - Extracting Zip+CSV file from attachment w/ Image in Body of Email

I receive daily emails where there is an attachment containing 1 zip file containing 1 csv file. In the body of ... help would be great, thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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280 views

1 answer

r - Fixing variance values in lme4

I am using the lme4 R package to create a linear mixed model using the lmer() function. In this model I have ... Intercept) 4.9379 0.1672 29.54 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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