Recent questions tagged R

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r - ggplot2: how to reduce space between narrow width bars, after coord_flip, and panel border

When you have flipped coordinates, how do you reduce the space between bars that are narrow and the panel ... does not work with coord_flip. See Question&Answers more detail:os...

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

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515 views

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r - knitr: object cannot be found when converting markdown file into html

Hi I am using R studio and the "knitHTML" button to convert my Rmd file into a html file. However, even ... lost in memory when using knit! See Question&Answers more detail:os...

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

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498 views

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r - How can I configure box.color in directlabels "draw.rects"?

Here is my working example: library(ggplot2) library(directlabels) # ver 2014.6.13 via r-forge DF <- expand.grid ... it's possible, but how? 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 - What is the fastest way to get a vector of sorted unique values from a data.table?

The answer to this question (Unique sorted rows single column from R data.table) suggested three different ways ... particular answer so far. See Question&Answers more detail:os...

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

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590 views

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r - Use of .BY and .EACHI in the data.table package

I am trying to get a better grasp on how some of the special variables in the data.table package work. ... compared to the .EACHI statement? See Question&Answers more detail:os...

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

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579 views

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r - Numbered Code Chunks in RMarkdown

Is there an option I can provide to code chunks in RMarkdown so that it will have a cell number attached to ... , while possible, is tedious. See Question&Answers more detail:os...

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

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824 views

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r - Issue scraping page with "Load more" button with rvest

I want to obtain the links to the atms listed on this page: https://coinatmradar.com/city/345/bitcoin-atm- ... this is a really simple question. See Question&Answers more detail:os...

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

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538 views

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r - How to use "cast" in reshape without aggregation

In many uses of cast I've seen, an aggregation function such as mean is used. How about if you simply ... up but any insight is appreciated See Question&Answers more detail:os...

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

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584 views

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r - Split data.frame into groups by column name

I'm new to R. I have a data frame with column names of such type: file_001 file_002 block_001 block_002 red_001 ... by the column name's start. See Question&Answers more detail:os...

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

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596 views

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r - How to store the returned value from a Shiny module in reactiveValues?

Version 1 below is a toy module that asks for a user input txt, and return the input to the main Shiny app. The ... .R is the same as Version 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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783 views

1 answer

r - Plotting axis labels with Greek symbols from a vector

I am struggling trying to plot Greek symbols as axis labels. Due to for looping several plots with different ... axis label through a vector? 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 - inserting stargazer or xable table into knitr document

> dput(head(t)) structure(list(Team = structure(c(1L, 1L, 1L, 1L, 1L, 1L), .Label = "Union", class ... display the contents of the t data frame? See Question&Answers more detail:os...

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

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565 views

1 answer

r - Vertical Histogram

I'd like to do a vertical histogram. Ideally I should be able to put multiple on a single plot per day. ... libraries that can help with 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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515 views

1 answer

r - Plot as bitmap in PDF

I am currently working on CGH array results, which involve several plots of dozens of thousands of points, and i would ... cex=0.6) dev.off() 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 - Search for corresponding node in a regression tree using rpart

I'm pretty new to R and I'm stuck with a pretty dumb problem. I'm calibrating a regression tree ... would help me understanding the results. See Question&Answers more detail:os...

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

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731 views

1 answer

r - Calculate proportions within subsets of a data frame

I am trying to obtain proportions within subsets of a data frame. For example, in this made-up data ... proportions within subsets of data. See Question&Answers more detail:os...

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

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940 views

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r - Unexpected behaviour with argument defaults

I just ran into something odd, which hopefully someone here can shed some light on. Basically, when a ... Only the standard packages loaded. See Question&Answers more detail:os...

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

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465 views

1 answer

r - Remove text inside brackets, parens, and/or braces

I am in need of a function that extracts any type of bracket ie (), [], {} and the information in ... <-bracketXtract(examp2$text, 'all') examp2 See Question&Answers more detail:os...

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

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473 views

1 answer

r - Can't find gfortran 4.8 to build package

I'm trying to install the deldir package in R via install.packages("deldir",type = 'source') but ... Contents/MacOS/rpostback" RS_SHARED_SECRET <removed> RSTUDIO "1" RSTUDIO_PANDOC...

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

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534 views

1 answer

r - Separate ordering in ggplot facets

so I have a simple example--a fully crossed three treatmentthree context experiment, where a continuous effect ... command for this situation? See Question&Answers more detail:os...

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

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681 views

1 answer

r - How to open Google Chrome with RSelenium?

I am using RSelenium and I want to open and navigate Google Chrome. However, I always get an error when I want to ... . What can I do about it? See Question&Answers more detail:os...

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

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621 views

1 answer

r - dplyr: grouping and summarizing/mutating data with rolling time windows

I have irregular timeseries data representing a certain type of transaction for users. Each line of data is ... rolling window more clear. See Question&Answers more detail:os...

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

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515 views

1 answer

r - Applying over a vector of functions

Given a vector (actually a list) of functions: fs = c(sin, cos, tan) and a vector of values: xs = ... value and returning a single scalar value. See Question&Answers more detail:os...

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

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773 views

1 answer

r - How to scrape a table with rvest and xpath?

using the following documentation i have been trying to scrape a series of tables from marketwatch.com here is the ... ") 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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498 views

1 answer

r - Warning message: in rbindlist(allargs) : NAs introduced by coercion: possible bug in data.table?

While analysing some data, I came across the warning message, which I suspect to be a bug as it is a pretty ... : [1] data.table_1.8.6 See Question&Answers more detail:os...

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

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639 views

1 answer

r - How can I change the size of the strip on facets in a ggplot?

Is there any way to control the size of the strips on facets in a ggplot? I tried using strip.background= ... anything. Is this even possible? See Question&Answers more detail:os...

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

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860 views

1 answer

r - Labelling the plots with images on graph in ggplot2

So I have this R script that can produce a scatter plot with labels of each point. Sth like this: img1<-" ... I can't manually download them. See Question&Answers more detail:os...

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

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675 views

1 answer

r - Truncate decimal to specified places

This seems like it should be a fairly easy problem to solve but I am having some trouble locating an answer. I ... to a given number. 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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