Recent questions tagged R

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r - dplyr: How to apply do() on result of group_by?

I'd like to use dplyr to group a table by one column, then apply a function to the set of values in the ... lm), formula = ArrDelay ~ date) See Question&Answers more detail:os...

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

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261 views

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r - How can I create an infix %between% operator?

I would like to have an infix operator %between% in R -- to check to see if x is between lower bound l ... does one 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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444 views

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r - attach() inside function

I'd like to give a params argument to a function and then attach it so that I can use a instead of ... be used after the attach command? See Question&Answers more detail:os...

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

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385 views

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r - Create a dataframe with random numbers in each column

I have this simulation of 1000 random numbers: a <-sample(0:1, 1000, rep = TRUE) What I want is a data frame of ten ... 3 1 0 0 . . 1000 1 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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415 views

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r - Access zoo or xts index

I am using zoo objects, buy my question also applies to xts objects. It looks to me like it is a one column ... m not sure how to access 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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547 views

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r - Error in terms.formula(formula) : '.' in formula and no 'data' argument

I'm tring to use neuralnet for prediction. Create some X: x <- cbind(seq(1, 50, 1), seq(51, 100, 1)) ... , in lm(linear model) this is worked. See Question&Answers more detail:os...

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

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430 views

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r - Tidyverse approach to binding unnamed list of unnamed vectors by row - do.call(rbind,x) equivalent

I often find questions where people have somehow ended up with an unnamed list of unnamed character vectors and they ... a data.frame row-wise? See Question&Answers more detail:os...

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

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735 views

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r - Write a dataframe to csv file with value of NA as blank

There is a dataframe named cnbd, for example: cnbd = data.frame(1,2,3,NA,NA,5) Thus the expression: dim(cnbd)[1] ... 3,,,5 in csv file, no NAs. 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 - Rvest: Scrape multiple URLs

I am trying to scrape some IMDB data looping through a list of URLs. Unfortunately my output isn't exactly what I ... it to work that 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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641 views

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r - Change background color of networkD3 plot

Say I make a networkD3 plot - using the minimal example in the package # library(networkD3) # Load data data( ... like we can add JS functions? See Question&Answers more detail:os...

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

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523 views

1 answer

r - How can I plot the relative proportions of two groups using a fill aesthetic in ggplot2?

How can I plot the relative proportions of two groups using a fill aesthetic in ggplot2? I am asking this ... could get the same treatment. See Question&Answers more detail:os...

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

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491 views

1 answer

r - adding text to ggplot geom_jitter points that match a condition

How can I add text to points rendered with geom_jittered to label them? geom_text will not work because I don't ... sprintf("%0.2f",quality))) See Question&Answers more detail:os...

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

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454 views

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r - Small ggplot2 plots placed on coordinates on a ggmap

I would like to first use ggmap to plot a specific area with longitude and latitude as axes. Then I would ... specific coordinates of the 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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354 views

1 answer

r - RSelenium UnknownError - java.lang.IllegalStateException with Google Chrome

I am running the following script based on the RSelenium Basics CRAN page: library(RSelenium) startServer(args = c(" ... What am I doing 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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510 views

1 answer

r - Shiny: How to adjust the width of the tabsetPanel?

Here is my app embedded in my site. I want to get rid of the scroll widget below my app, this is due to ... }) Any help is 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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459 views

1 answer

r - ggplot geom_bar: stack and center

I have a dataframe with shares in percent,columns representing different items, rows the respective share of ... would be much 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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516 views

1 answer

r - Unicode with knitr and Rmarkdown

Is there a set of best practices or documentation for working with Unicode in knitr and Rmarkdown? I can't ... upload images directly to SO). See Question&Answers more detail:os...

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

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635 views

1 answer

r - How to unscale the coefficients from an lmer()-model fitted with a scaled response

I fitted a model in R with the lmer()-function from the lme4 package. I scaled the dependent variable: ... coefficients of the fitted model? 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

1 answer

r - Plot mean and sd of dataset per x value using ggplot2

I have a dataset that looks a little like this: a <- data.frame(x=rep(c(1,2,3,5,7,10,15,20), 5), y ... each group.Maybe you want aes(group = 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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603 views

1 answer

r - Conditional rolling mean (moving average) on irregular time series

I have a group of data in the format: ID Minutes Value xxxx 118 3 xxxx 121 4 xxxx 122 3 yyyy 122 6 ... me know if further clarity is needed. See Question&Answers more detail:os...

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

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355 views

1 answer

r - How to calculate returns from a vector of prices?

I have to calculate the return of a vector that gives a historical price series of a stock. The ... function to calculate this automatically? See Question&Answers more detail:os...

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

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802 views

1 answer

r - Count consecutive numbers in a vector

If I have a vector like "a": 0 0 0 1 1 1 0 0 0 0 1 1 0 0 0 I want to know how many 1 are ... and 2. Is there any script that can do 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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836 views

1 answer

r - Legend title in plotly

How do I specify title for legend in plotly? I have a stacked bar graph that plots different durations like 0- ... title to say 'Duration'. See Question&Answers more detail:os...

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

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339 views

1 answer

r - Why is foreach() %do% sometimes slower than for?

I'm playing around with parallellization in R for the first time. As a first toy example, I tried library(doMC) ... elapsed 6.380 0.000 6.385 See Question&Answers more detail:os...

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

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497 views

1 answer

r - Highlighting individual axis labels in bold using ggplot2

I want to highlight individual axis labels in bold. I am aware of this answer by @MrFlick but I can't figure out how to ... , e.g. A, B and E. See Question&Answers more detail:os...

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

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644 views

1 answer

r - Mutating column in `dplyr` using `rowSums`

Recently I stumbled uppon a strange behaviour of dplyr and I would be happy if somebody would provide some ... naive approach is applied. See Question&Answers more detail:os...

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

0 votes

390 views

1 answer

r - knitr: How to show two plots of different sizes next to each other?

I wanted to generate two images of different sizes, but show them side-by-side. Is this possible? This works, but then ... =9} plot(...) ``` See Question&Answers more detail:os...

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

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567 views

1 answer

r - Add vline to existing plot and have it appear in ggplot2 legend?

I have some data that I am using to plot a histogram. I also have two sets of thresholds that have some ... them appear correctly in the legend. See Question&Answers more detail:os...

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

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