Recent questions tagged R

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r - How to add Latex code in ggplot2 legend labels?

Consider the following example: p <- ggplot(data = data.frame(A=c(1,2,3,4,5,6,7,8),B=c(4,1,2,1, ... work. Could somebody break it down for me? See Question&Answers more detail:os...

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

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525 views

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r - Twitter Data Analysis - Error in Term Document Matrix

Trying to do some analysis of twitter data. Downloaded the tweets and created a corpus from the text of the tweets ... 0.1 and RStudio: 0.97 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

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r - Aggregating all unique values of each column of data frame

I have a large data frame (1616610 rows, 255 columns) and I need to paste together the unique values of each ... , so thanks for your patience. See Question&Answers more detail:os...

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

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734 views

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r - gridExtra Colour different rows with tableGrob

I have a question regarding tableGrob/grid.table from the gridExtra package. Using the regular parameter settings, it is ... .alpha = 0.5 ) 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 - Counting number of times a value occurs

I have a variable (Var) which stores 10000 values and is of integer nature. I want to count, how many times 1000 ... in R? 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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294 views

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r - assign a value, if a number is in between two numbers

Im trying to assign the value of -1, to every number in my vector that is inbetween 2 and 5. I thought an if - then ... (-1) } else { cat (x) } See Question&Answers more detail:os...

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

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290 views

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r - Handling errors before warnings in tryCatch

I am dealing with a function that is throwing both errors and warnings. (related: A Warning About Warning ... F.errorAndWarning) # ERROR CAUGHT See Question&Answers more detail:os...

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

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448 views

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r - Add raster to ggmap base map: set alpha (transparency) and fill color to inset_raster() in ggplot2

I want to plot a map with a raster overlaying a GoogleMaps base map in ggplot2. Therefore, I used get_map() ... ? The result looks like 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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498 views

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r - Automated httr authentication with twitteR , provide response to interactive prompt in "batch" mode

I am using the R package twitteR to post items to Twitter. I put everything inside of a function and it ... (httr_oauth_cache=origop) <snip> } See Question&Answers more detail:os...

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

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299 views

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r - Shiny Responds to Enter

I have a textInput widget, and now whenever I start typing in the widget, shinyApp tries to evaluate the ... Enter?" 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 - get first and last values in group – dplyr group_by with last() and first()

The code below should group the data by year and then create two new columns with the first and last value of each year. ... 3 5 9 3 2002 5 3 5 See Question&Answers more detail:os...

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

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404 views

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r - Showing equation of nls model with ggpmisc

R package ggpmisc can be used to show equation of lm model and poly model on ggplot2 (See here for reference). I ... "nls", method.args = args) See Question&Answers more detail:os...

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

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461 views

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r - as.Date(as.POSIXct()) gives the wrong date?

I'd been trying to look through a dataframe extracting all rows where the date component of a POSIXct ... (Australian Eastern Standard Time) See Question&Answers more detail:os...

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

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445 views

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r - Any way to force fread() of data.table not to stop on empty lines?

(question is not relevant anymore, since new version of data.table of 25-NOV-2016 - see accepted answer ... without changing the data file? 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 - Error in plot.window(...) : need finite 'xlim' values

What should i do for this error? My code is : library(e1071) library(hydroGOF) donnees <- read.csv("F:/new work with shahab/Code-SVR/ ... 14.5 629 3.52 3.69 3.65 test 6.5 648 3.75...

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 - Why is := allowed as an infix operator?

I have come across the popular data.table package and one thing in particular intrigued me. It has an in-place ... be "patched" in the future? See Question&Answers more detail:os...

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

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424 views

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r - Flip ordering of legend without altering ordering in plot

I have found that when adding coord_flip() to certain plots using ggplot2 that the order of values in the legend no ... case for this bar plot). See Question&Answers more detail:os...

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

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683 views

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r - Error in file(file, "rt") : invalid 'description' argument in complete.cases program

I am writing an R function that reads a directory full of files and reports the number of completely observed cases in ... ", id = 1:332) See Question&Answers more detail:os...

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

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405 views

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r - Rowwise cumulative sum

I have a data.table dt as follows. df <- data.frame(t1 = rep(0,5), t3 = c(12, 5, 8,9, 5), t7= c(25, 48, 7, 9, ... 3: 0 8 15 4: 0 9 18 5: 0 5 19 See Question&Answers more detail:os...

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

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326 views

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r - Adding new column with conditional values using ifelse

I have a data frame with more than 400.000 observations and I'm trying to add a column to it which its values ... how can I fix this issue ? See Question&Answers more detail:os...

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

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270 views

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r - Count every possible pair of values in a column grouped by multiple columns

I have a dataframe that looks like this (this is just a subset, actually dataset has 2724098 rows) > head( ... suggestions on how to proceed? See Question&Answers more detail:os...

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

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267 views

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r - Unlisting columns by groups

I have a dataframe in the following format: id | name | logs ---+--------------------+----------- ... row.names = 149:158, class = "data.frame") See Question&Answers more detail:os...

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

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248 views

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r - Process substitution

I've given a look around about what puzzles me and I only found this: Do some programs not accept process ... scan the results are the same. See Question&Answers more detail:os...

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

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868 views

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r - Find all combinations of numbers that sum to a target

I wish to find the speediest way to find up to 1000 possible combinations of 'n' integers to find a target ... doesn't feel intuitively quick. See Question&Answers more detail:os...

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

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347 views

1 answer

r - Extract part of string before the first semicolon

I have a column containing values of 3 strings separated by semicolons. I need to just extract the part of ... I tried gsub without success. 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

1 answer

r - Get margin line locations in log space

In a previous question I asked how to get margin line locations in user coordinates. I received an excellent answer ... with a log-scaled axis? 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 - Adding 15 business days in lubridate

I have a long list of start dates of a certain procedure. Rules require the procedure to be completed in, ... Saturdays and Sundays? 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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767 views

1 answer

r - ggpairs plot with heatmap of correlation values

My question is twofold; I have a ggpairs plot with the default upper = list(continuous = cor) and I ... recalculate them myself. 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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