Recent questions tagged R

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r - Set one or more of coefficients to a specific integer

I am using a standard lm model and would like to set the coefficients of one or more of my variables to a ... from an exploratory point of view. See Question&Answers more detail:os...

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

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369 views

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r - Unlist a data frame by rows, not columns

A relatively simple question, but the answer seems to have eluded me. Currently, I have a data frame which ... ) would be greatly appreciated. See Question&Answers more detail:os...

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

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446 views

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r - Collapse continuous integer runs to strings of ranges

I have some data in a list that I need to look for continuous runs of integers (My brain thinkrle but don't know ... sally", "sam", "teacher")) See Question&Answers more detail:os...

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

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639 views

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r - How to split a data frame into multiple dataframes with each two columns as a new dataframe?

I've the below dataframe with 10 columns. V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 1 2 3 4 5 6 7 8 9 10 11 ... 93 94 How can I achieve this easily 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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722 views

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r - Add percentage labels to a stacked barplot

I have successfully made a stacked barplot in R where the percentages add up to 100% for several different ... redundant/asked before. 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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399 views

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r - What is the difference between = and ==?

What is the difference between = and ==? I have found cases where the double equal sign will allow my script to run ... I use == instead of =? See Question&Answers more detail:os...

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

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344 views

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r - Create counter of consecutive runs of a certain value

I have data where consecutive runs of zero are separated by runs of non-zero values. I want to create a counter for the runs ... 2 0 0 3 0 3 0 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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r - List for Multiple Plots from Loop (ggplot2) - List elements being overwritten

(Very much a novice, so please excuse any confusion/obvious mistakes) Goal: A loop that allows me to ... having each previous plot overwritten? See Question&Answers more detail:os...

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

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893 views

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r - Convert quarter/year format to a date

I created a function that coerce a vector of quarters-years format to a vector of dates. .quarter_to_date(c(" ... to simplify this code please? See Question&Answers more detail:os...

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

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412 views

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r - Download multiple files using "download.file" function

I am trying to download PDFs from a website using R. I have a vector of the PDF-URLs (pdfurls) and a ... to download multiple files using 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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498 views

1 answer

r - cbind 2 dataframes with different number of rows

I have two lists named h and g. They each contain 244 dataframes and they look like the following: h[[ ... will be greatly appreciated :) 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 - How do keep only unique words within each string in a vector

I have data that looks like this: vector = c("hello I like to code hello","Coding is fun", "fun fun fun") I ... 2] "coding is fun" [3] "fun" See Question&Answers more detail:os...

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

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382 views

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r - Create column with grouped values based on another column

I'm sure this has been asked before, but I don't know what to search for, so I apologise in advance. Let ... when there is more than one ifelse. See Question&Answers more detail:os...

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

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544 views

1 answer

r - Convert numbers to SI prefix

Is there a R function (or any package) allowing to format numbers (integer) using standard unit prefix (Kilo, ... to not reinvent the wheel. See Question&Answers more detail:os...

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

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520 views

1 answer

r - Rscript: There is no package called ...?

I want to run R files in batch mode using Rscript, however it does not seem to be loading the libraries that I need ... Files/R/R-3.1.0/library" See Question&Answers more detail:os...

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

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406 views

1 answer

r - Use a variable within a plotmath expression

I'm trying to place the results of a regression (i.e., R2) in a graph, but can't seem to figure out how to call a ... )), adj = 0, cex = 0.85) See Question&Answers more detail:os...

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

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511 views

1 answer

r - Scrolling page in RSelenium

How can I manually scroll to the bottom (or top) of a page with the RSelenium WebDriver? I have an element that ... it is visible on the page. See Question&Answers more detail:os...

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

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369 views

1 answer

r - Object not found error with ddply inside a function

This has really challenged my ability to debug R code. I want to use ddply() to apply the same functions to ... my hand and ask for help. See Question&Answers more detail:os...

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

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723 views

1 answer

r - How to set fixed continuous colour values in ggplot2

I'm plotting a lot of graphics and I'd like for all of them to have the same colour scale so I can compare ... a way to set this colour 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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365 views

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r - Fill missing combinations in a dataframe

My example dataset: df <- data.frame( REGION = c("REGION A", "REGION A", "REGION B"), CATEGORY = c( ... . Any ideas? Thank you 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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309 views

1 answer

r - adding default values to item x group pairs that don't have a value (df %>% spread %>% gather seems strange)

Short version How to do the operation df1 %>% spread(groupid, value, fill = 0) %>% gather(groupid, value ... the running total didn't increase. See Question&Answers more detail:os...

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

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317 views

1 answer

r - How convert decimal to POSIX time

I use a function from here to calculate the sunrise and sunset and it returns: sunrise sunset 6. ... suggestion is greatly appreciated. See Question&Answers more detail:os...

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

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648 views

1 answer

r - Add secondary X axis labels to ggplot with one X axis

**Edit, there are two great solutions here, one is marked as the answer, but @hrbrmstr provides a great ... output (pardon my 'mspaint') See Question&Answers more detail:os...

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

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499 views

1 answer

r - render dropdown for single column in DT shiny

I'm not proficient in Javascript and would like to replicate a dropdown function as is available in the ... help is much appreciated! See Question&Answers more detail:os...

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

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358 views

1 answer

r - Merge many data frames from csv files, when ID column is implied?

I'd like to merge a bunch of data frames together (because it seems many operations are easier if you're ... Is there a more elegant approach? 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

1 answer

r - Include space for missing factor level used in fill aesthetics in geom_boxplot

I am trying to draw a box and whisker plot in R. My code is below. At the moment, because I only have data ... , drop=TRUE), na.rm=FALSE) plot See Question&Answers more detail:os...

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

0 votes

245 views

1 answer

r - How to speed up subset by groups

I used to achieve my data wrangling with dplyr, but some of the computations are "slow". In particular subset by groups, I ... ") [1] 0.4.1' See Question&Answers more detail:os...

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

0 votes

532 views

1 answer

r - Replace missing values (NA) with blank (empty string)

I have a dataframe with an NA row: df = data.frame(c("classA", NA, "classB"), t(data.frame(rep("A", 5), ... it didn't work.. Any ideas? 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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