Recent questions tagged R

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r - Removing Unused Factors from a Facet in ggplot2

I am trying to figure out a neat way to remove unused factors from a facet in ggplot2. Here is a minimal ... even a hack would be acceptable. See Question&Answers more detail:os...

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

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281 views

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r - What does the period mean when used with ~ (in a formula)?

From the FSelector manual: data(iris) subset <- cfs(Species~., iris) f <- as.simple.formula(subset, " ... anything. This code is unclear. See Question&Answers more detail:os...

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

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587 views

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r - Find all positions of all matches of one vector of values in second vector

I need to find all positions in my vector corresponding to any of values of another vector: needles <- c(4 ... function allowing to do this? See Question&Answers more detail:os...

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

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850 views

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r - Package "rvest" for web scraping https site with proxy

I want to scrap a https website, but I failed. Here is my code: require(rvest) url <- "https://www.sunnyplayer ... " How I can fix this problem? See Question&Answers more detail:os...

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

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342 views

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r - How to strsplit using '|' character, it behaves unexpectedly?

I would like to split a string of character at pattern "|" but unlist(strsplit("I am | very smart", " | ")) [1] "I" " ... v*e*r*y* *s*m*a*r*t*" See Question&Answers more detail:os...

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

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302 views

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r - Do not ignore case in sorting character strings

Is there a builtin functionality in R to sort character vectors taking case into account? sort and order ignore the case: tv ... " "B" "a" "ab" See Question&Answers more detail:os...

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

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316 views

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r - Shiny - observe() triggered by dynamicaly generated inputs

I have a shiny code that generates selectInputs and each of those selectInput generate the plot title. The problem ... } shinyApp(ui, server) See Question&Answers more detail:os...

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

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1.0k views

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r - C5.0 decision tree - c50 code called exit with value 1

I am getting the following error c50 code called exit with value 1 I am doing this on the titanic data available ... I debug my code? -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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362 views

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r - data.table is not handling integer64 in by statement

Using fread from data.table load integer64 correctly, though I have the impression that by statements are not ... count 1: 432706205348805058 3 See Question&Answers more detail:os...

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

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297 views

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r - Unexpected match of regex

I expect the regex pattern ab{,2}c to match only with a followed by 0, 1 or 2 bs, followed by c. It ... or should this be reported as a bug? See Question&Answers more detail:os...

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

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375 views

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r - Real cube root of a negative number

I'm trying to see if there is a function to directly get the real cube root of a negative number. For ... cumbersome to type every time. Thx! 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 - Difference between `names(df[1]) <- ` and `names(df)[1] <- `

Consider the following: df <- data.frame(a = 1, b = 2, c = 3) names(df[1]) <- "d" ## First method ## a b c ##1 1 ... [1] <- 2 ## a b c ##1 2 2 3 See Question&Answers more detail:os...

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

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274 views

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r - Calculating a distance matrix by dtw

I have two matrices of normalized read counts for control and treatment in a time series day1 to day26. I ... : incorrect number of dimensions See Question&Answers more detail:os...

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

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311 views

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r - Adding an repeated index for factors in data frame

I have a data frame in which I want to add an index e.g. 1...n for each factor in my data frame. Here ... how to do so? 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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410 views

1 answer

r - ggplot2 overlay of barplot and line plot

I copied line for line a code from someone on this site on how to overlay two plots with two y axes. However, ... , I want the barplot "dodged" See Question&Answers more detail:os...

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

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367 views

1 answer

r - Repeat vector when its length is not a multiple of desired total length

I have a data frame with 1666 rows. I would like to add a column with a repeating sequence of 1:5 to ... rows, data has 1666 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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283 views

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r - How to convert time to decimal

I have a large data set containing time in hh:mm:ss format and I would like to convert these to a decimal format ... How do I do this in R? See Question&Answers more detail:os...

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

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322 views

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r - reshape multi id repeated variable readings from long to wide

This is what I have: id<-c(1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2) measure<-c("speed"," ... . long time user first time question ... thanks yall! 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

1 answer

r - rJava linker error licuuc with Anaconda & fopenmp error without Anaconda for macOS Sierra 10.12.4

I want to install rJava on macOS Sierra 10.12.4. My current Java version is Java version: 1.8.0_131, according ... Anaconda and how to fix it? See Question&Answers more detail:os...

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

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320 views

1 answer

r - Select rows of a data.frame that contain only numbers in a certain column

How to select only the rows that contain a number in column b. a <- c(1,5,3,1,-8,6,-1) b <- c(4,-2,1,0,"c",2,"DX ... -2 # 3 3 1 # 4 1 0 # 5 6 2 See Question&Answers more detail:os...

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

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363 views

1 answer

r - Get the event which is fired in Shiny?

I would like to know in the example below which event is fired in the multiple ObserveEvent(). ui <- ... #!topic/shiny-discuss/vd_nB-BH8sw See Question&Answers more detail:os...

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

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297 views

1 answer

r - How do I stack only some columns in a data frame?

I have some data in a data frame in the following form: A B C V1 V2 V3 1 1 1 x y z 1 1 2 ... that only certain columns should be "stacked". See Question&Answers more detail:os...

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

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357 views

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r - Replace value with the name of its respective column

I have a data frame: Code 401k CVS 101A true 231N true FD54 true 99JB 85F4 true I'm trying to replace the ... 231N 401k FD54 401k 99JB 85F4 401k See Question&Answers more detail:os...

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

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510 views

1 answer

r - Quantmod Error 'cannot open URL'

I started to experience an error today with the quantmod package. Anybody else have the same error when running ... The URL itself works fine. See Question&Answers more detail:os...

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

0 votes

490 views

1 answer

r - Documentation on internal variables in ggplot, esp. PANEL

The answer to this question uses a PANEL variable which seems to be internal to ggplot. But searching the ggplot ... just go to the code? See Question&Answers more detail:os...

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

0 votes

714 views

1 answer

r - Rmarkdown HTML Template produces pandoc error 61

Rmarkdown seams not working as usual after installing R3.4.3: When knitting that HTML-Template: --- title: " ... to get standalone html files ? See Question&Answers more detail:os...

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

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392 views

1 answer

r - How to put values on a boxplot for median, 1st quartile and last quartile?

How to put values on boxplot and control its width? X<-c(1,2,,3,4,4,5,5,6,6,6,6,6,7) I need to ... and last quartile. How can I put it there? See Question&Answers more detail:os...

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

0 votes

474 views

1 answer

r - Dictionary() is not supported anymore in tm package. How to emend code?

I just noticed that after updating to tm v. 0.5-10 the function Dictionary() is not supported ... to proceed without engineering 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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