Recent questions tagged R

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r - Adding greek character to axis title

I want to add a greek character to the y-axis of my barplot in R. The problem is that I need this character ... . I hope I was clear enough. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Plotting with ggplot2: "Error: Discrete value supplied to continuous scale" on categorical y-axis

The plotting code below gives Error: Discrete value supplied to continuous scale What's wrong with this code? ... looked before adding scale: See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Control point border thickness in ggplot

When using ggplot, I can set shape to 21-25 to get shapes that have independent setting for the internal ( ... I control the border thickness? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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341 views

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r - generate markdown comments within for loop

I am trying to generate an HTML report, using knitr, based on an R script that has for loops. I want to ... HTML. Is it possible? Thanks, Peter See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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478 views

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r - Delete columns/rows with more than x% missing

I want to delete all columns or rows with more than 50% NAs in a data frame. This is my solution: # ... I would also appreciate a dplyr solution See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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476 views

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r - Euclidean distance of two vectors

How do I find the Euclidean distance of two vectors: x1 <- rnorm(30) x2 <- rnorm(30) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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593 views

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r - Installing rgl on Ubuntu and Mac: X11 not found

I have seen this question here: Error in loading rgl package with Mac OS X but there is no mentioning ... this installation problem? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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527 views

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r - Make Frequency Histogram for Factor Variables

I am very new to R, so I apologize for such a basic question. I spent an hour googling this issue, ... a simple frequency histogram by category. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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275 views

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r - Error parsing JSON file with the jsonlite package

I'm trying to read a JSON file into R but I got this error: Error in parseJSON(txt) : parse error: trailing ... this a file problem or my code? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Use character string as function argument

I'm sure this is simple, but I cannot find a solution ... I would like to use a variable containing a ... na.rm=FALSE) Thanks in advance! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How can I format axis labels with exponents with ggplot2 and scales?

With the new version ggplot2 and scales, I can't figure out how to get axis label in scientific notation. For example ... .9.1 and scales_0.2.1 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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915 views

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r - how to convert data.frame to transactions for arules

I read data from a csv file, the data has 3 columns, one is transaction id, the other two are ... to find rules between multiple columns. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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769 views

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r - Add line break to axis labels and ticks in ggplot

I'm looking for a way to use long variable names on the x axis of a plot. Of course I could use a ... solutions are welcome of course. Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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431 views

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r - The same width of the bars in geom_bar(position = "dodge")

I would like to draw plot with the same width of the bars. Here's my minimal example code: data <- data. ... s not the answer to my question. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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550 views

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r - change both legend titles in a ggplot with two legends

I have two legends on my ggplot with two different legend titles (automatically created from ggplot()). Now, I want ... (type)" and "code": See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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349 views

1 answer

r - Get the row and column name of the minimum element of a matrix

I need to get the row and column name of the smallest element of a matrix > mat = matrix(data=runif(12), nrow = 4, ... d like to get "a" and "b" See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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565 views

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r - Reverse order of discrete y axis in ggplot2

Situation & data I have a dataframe df of athlete positions in a race (I've already melted it for use with ggplot2) ... and 1 is at the top? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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486 views

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r - Using grep to help subset a data frame

I am having trouble subsetting my data. I want the data subsetted on column x, where the first 3 characters ... unsure how to use wildcards. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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361 views

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r - How to subtract years?

I have a date in R, e.g.: dt = as.Date('2010/03/17') I would like to subtract 2 years from this date, ... 2010-03-17'). How would I do that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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664 views

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r - dplyr, lubridate : how to aggregate a dataframe by week?

Consider the following example library(tidyverse) library(lubridate) time <- seq(from =ymd("2014-02-24"),to ... appropriate here. Thanks again! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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426 views

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r - How to draw the boxplot with significant level?

Some time ago I asked a question about drawing boxplot Link1. I have got some data with 3 different groups (or ... cut from a paper here: See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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464 views

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r - Converting python objects for rpy2

The following code is supposed to create a heatmap in rpy2 import numpy as np from rpy2.robjects import r data = ... to the required data type? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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555 views

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r - How do you pass parameters to a shiny app via URL

In web browsers you pass parameters to a website like www.mysite.com/?parameter=1 I have a shiny app and I ... sample code or links? Thank you See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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295 views

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r - Replace all values in a matrix <0.1 with 0

I have a matrix (2601 by 58) of particulate matter concentration estimates from an air quality model. Because ... this it deletes everything. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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399 views

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r - How to see data from .RData file?

I saw some similar qestions and I tried to work it out on my own, but I couldn't. This is my problem: I ... I wrote, Im not a native speaker. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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489 views

1 answer

r - Include a javascript file in Shiny app

I need to include a js library into my Shiny app. Currently I use includeHTML to include the script directly ... ? Thanks for any suggestions. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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416 views

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r - How to tell CRAN to install package dependencies automatically?

I develop a package in R and when I check and build it in my local computer it works properly. But when I ... and submit to CRAN? Thank you. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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336 views

1 answer

r - Is there a way to `source()` and continue after an error?

I have a large R script of, say, 142 small sections. If one section fails with an error I'd like the ... have a script as described. Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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