Recent questions tagged R

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r - data.table join (multiple) selected columns with new names

I like to join two tables that have some identical columns (names and values) and others that are not. I'm only ... cols, on=c(id="id")] 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 - How to assign a Colour Scale based on Y-axis in ggplot

I am trying to assign a colour scale/gradient to some violin plots based on the y-axis value of Income. ... just ends up filled with white. 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 - error in saveGIF command in animation package

I'm trying to use for the first time animation package in R. I'm using this simple code: saveGIF({ for ... file specified Where is the problem? 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 - BioMart: Is there a way to easily change the species for all of my code?

Below is a small fraction of my code: library(biomaRt) ensembl_hsapiens <- useMart("ensembl", dataset = " ... hsapiens for mmusulus and ggallus. 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 - finding overlapping time between start time and end time of individuals in a group

I have household person start time end time 1 1 07:45:00 21:45:00 1 2 09:45:00 17:45:00 1 3 22: ... other family member it can be 0 or whatever 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 - Using Group_by create aggregated counts conditional on value

I have a data table that looks like this: serialno state type type2 1 100 FL A C 2 100 CA A D 3 ... and then use summarize to create counts? 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 - NA in subsetter - Inconsistent behavior

Consider the following: seq(from=10,to=30)[c(4,8)] [1] 13 17 seq(from=10,to=30)[c(NA,8)] [1 ... debugging pains. Might this be considered a bug? 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 - Issue loading data of "file name conversion problem - name too long?"

I tried to open Excel data using import data in the RStudio, but I got this error: file name conversion problem - ... and how can I handle 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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r - Two-level stacked learner (enseble model) combining elastic net and logistic regression using mlr3

I try to solve a common problem in medicine: the combination of a prediction model with other sources, eg, ... predictions on the test.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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r - GGPLOT2: Distance of discrete values of from each end of x-axis

I have been working with the code below. Everything seems to work okay, except that the discrete values on the ... =id_finger)) + geom_line() 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 - Use dataframe variable names in plot titles

I have a dataframe with several variables that I wish to label and then use in several ggplots. I have ... help is much appreciated. 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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r - Filter values in data frame

Basically, I have a gene dataset in which the rows are genes and columns are sequential time points of protein ... Any help would be great. 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 - Unable to convert JSON to dataframe

I want to convert a json-file into a dataframe in R. With the following code: link <- 'https://www.dropbox ... idea how to solve this problem? 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 - Combing a list of unequal data.frames

I'm trying to combine a list of unequal data.frames; the obvious do.call(rbind, df.lst) fails but the real ... an answer to this precise one). 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 - rvest: how to submit form when input doesn't have a name?

I have a simple problem and I don't know how to settle it. I want to fill a form using rvest where the input ... I don't know it. Any idea ? 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 - how to use a variable in a variable

I have a data frame where the row names are words and I can call the first column of that row of ... and all suggestions are welcome. 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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r - Remove quotes from vector element in order to use it as a value

Suppose that I have a vector x whose elements I want to use to extract columns from a matrix or data frame M. ... than M$"A" in this instance? 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 - Find which sector a stock belongs to

Given stocks in S&P500, how can I find which sector each stock belongs to, e.g. financial, energy ...., using R package, or other sources? 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 - Install package without internet: error in install.packages: no such file or directory

I'm trying to install the readr package in R on a laptop without internet connection using the install. ... without an internet connection? 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 - quanteda kwic regex operation

Further edit to original question. Question originated by expectation that regexes would work identically or nearly ... for this great package 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 - DT cell hover showing cell based sample sizes from hidden column

I have previously asked how to colour cells based on colours stored in hidden columns (link). I saw that it is also ... }', "}") ) ) solution 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 - knitr .Rmd -> Word document: control details of figures

I'm producing a solutions manual for a book, using .Rmd files with the following YAML header: --- title: "DDAR ... -scales a figure as in LaTeX. 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 - Updating a data.frame column with eval function

I have a data.frame df with 2 columns in R and I need to update one of the columns by using a eval function (or by ... 0.26 27.42 - 27.68 -0.26 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 - Using approx() with groups in dplyr

I am trying to use approx() and dplyr to interpolate values in an existing array. My initial code looks like this ... me where I am going wrong? 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 - converting "1984-03-25 02:00:00" to POSIX gives NA

While converting a vector of date-time to POSIXlt, just one particular time "25-Mar-1984-02:00" "is converted to POSIXlt ... it to be "not NA"? 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 markdown - In R bookdown how do I set the default code output background color

My R bookdown book with gitbook style renders with the code output in a gray box. I would like to ... clueless would be greatly 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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r - how to reorder a factor in a dataframe with fct_reorder?

Consider the following example > library(forcats) > library(dplyr) > > > dataframe <- data_frame(var = c(1,1, ... the logic behind it? 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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r - bug in lme4 package with anova()

library(Matrix) library(lme4) data <- lme4::sleepstudy model1 <- lm(Reaction ~ Days, data = data) model2 ... scripts that require this version). See Question&Answers more detail:os...

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

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