Recent questions tagged R

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r - Cast function argument as a character string?

Super quick question... How do you take a some particular function's (user-defined) argument and cast it as a ... couldn't find it! Thanks!! 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 - Replace NA with Zero in dplyr without using list()

In dplyr I can replace NA with 0 using the following code. The issue is this inserts a list into my data frame which ... df$x[is.na(df$x)] <- 0 See Question&Answers more detail:os...

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

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942 views

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r - Error in Confusion Matrix : the data and reference factors must have the same number of levels

I've trained a Linear Regression model with R caret. I'm now trying to generate a confusion matrix and ... NULL > levels(testing$Final) NULL See Question&Answers more detail:os...

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

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378 views

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r - Error: Invalid input: date_trans works with objects of class Date only

I have a time series dataset called "Data" which contains water elevation data for several wells over many years of sampling ... ", alpha = 0.5) See Question&Answers more detail:os...

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

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504 views

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r - read.table() and read.csv both Error in Rmd

I want to read a txt in Rmd --- title: "Untitled" output: html_document --- ```{r} country <- read. ... -> read.table -> file Execution halted See Question&Answers more detail:os...

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

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499 views

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r - Weird characters added to first column name after reading a toad-exported csv file

Whenever I read a csv file in R (read.csv("file_name.csv")) that was exported using toad, the first column name ... " "12021,1204" "12281,1204" See Question&Answers more detail:os...

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

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856 views

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r - Remove parenthesis from a character string

I am trying to remove a parenthesis from a string in R and run into the following error: string <- "log(M)" ... 'log(', reason 'Missing ')'' See Question&Answers more detail:os...

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

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475 views

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r - Hiding NA's when printing a dataframe in knitr

I'm trying to print a table in knitr from a data frame using xtable . The table in the example below has ... ) print(xFTable) @ end{document} See Question&Answers more detail:os...

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

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489 views

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r - checking CRAN incoming feasibility ... NOTE Maintainer

When I run R CMD check --as-cran on my package, the one note I still get is: checking CRAN incoming ... do that will clear the note? See Question&Answers more detail:os...

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

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284 views

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r - convert dplyr join syntax into pure data.table syntax

I am learning data.table. I have difficulty converting the dplyr join syntax. Can you please recommend the data. ... in advance for any help. See Question&Answers more detail:os...

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

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630 views

1 answer

r - Italic greek letters / latex-style math in plot titles

I'd like to create latex-style math in plot titles in R. The plotmath tools have a useful but limited subset of ... and add them to my graphs? See Question&Answers more detail:os...

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

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437 views

1 answer

r - Counting unique items in data frame

I want a simple count of the number of subjects in each condition of a study. The data look something like ... this should be painfully simple. See Question&Answers more detail:os...

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

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335 views

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r - Extracting noun+noun or (adj|noun)+noun from Text

I would like to query if it is possible to extract noun+noun or (adj|noun)+noun in R package openNLP?That ... into R language. Many thanks. See Question&Answers more detail:os...

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

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232 views

1 answer

r - Add annotation and segments to groups of legend elements

My ggplot has the following legend: I want to group my individual legend variables, and add the group names and ... <-data.frame(state,activity) See Question&Answers more detail:os...

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

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393 views

1 answer

r - PCA Scaling with ggbiplot

I'm trying to plot a principal component analysis using prcomp and ggbiplot. I'm getting data values outside of the ... I'm trying to get. See Question&Answers more detail:os...

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

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295 views

1 answer

r - Visualise distances between texts

I'm working on a research project for school. I've written some text mining software that analyzes legal texts ... I'll be infinitely grateful. 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 - Double clustered standard errors for panel data

I have a panel data set in R (time and cross section) and would like to compute standard errors that are ... i.e. along two dimensions). See Question&Answers more detail:os...

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

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778 views

1 answer

r - Plotting envfit vectors (vegan package) in ggplot2

I am working on finalizing a NMDS plot that I created in vegan and ggplot2 but cannot figure out how to add envfit ... max=0.1, col="blue") See Question&Answers more detail:os...

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

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351 views

1 answer

r - How to read data with different separators?

I have a file looks like: a 1,2,3,5 b 4,5,6,7 c 5,6,7,8 ... That the separator between 1st and ... of data set as as dataframe having 5 fields. See Question&Answers more detail:os...

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

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463 views

1 answer

r - Remove URLs from string

I have a vector of strings-myStrings-in R that look something like: [1] download file from `http:// ... stringr package but nothing works. See Question&Answers more detail:os...

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

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402 views

1 answer

r - ggplot graphing of proportions of observations within categories

I am looking for advice on better ways to plot the proportion of observations in various categories. I have a ... how to make this work. See Question&Answers more detail:os...

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

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619 views

1 answer

r - Watermark in rmarkdown

I have researched and found how to create a watermark in an rmarkdown document. It works great on basic text, but ... as far as I'm concerned. See Question&Answers more detail:os...

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

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337 views

1 answer

r - Difference between pull and select in dplyr?

It seems like dplyr::pull() and dplyr::select() do the same thing. Is there a difference besides that dplyr::pull() only selects 1 variable? See Question&Answers more detail:os...

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

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628 views

1 answer

r - rollmean with dplyr and magrittr

Given the following data: set.seed(1) data <- data.frame(o=c('a','a','a','a','b','b','b','b','c ... real data. How do I fill the first two rows? See Question&Answers more detail:os...

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

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357 views

1 answer

r - Mutating multiple columns in a data frame using dplyr

I have the following data frame df: v1 v2 v3 v4 1 1 5 7 4 2 2 6 10 3 And I want to obtain the following ... v4) df2 <- cbind(df, v1v3, v2v4) See Question&Answers more detail:os...

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

0 votes

374 views

1 answer

r - ggplot legend issue w/ geom_point and geom_text

I am trying to use geom_point to illustrate the count of my data. I would also like to annotate a few of the points ... size = 150, vjust = 2)) See Question&Answers more detail:os...

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

0 votes

304 views

1 answer

r - Use pipe without feeding first argument

Is the %>% pipe operator always feeding the left-hand side (LHS) to the first argument of the right-hand side ( ... find a solution with %>%... See Question&Answers more detail:os...

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

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283 views

1 answer

r - apply over matrix by column - any way to get column name?

I'm calling apply(data, 2, function(x) {...}) where data is a matrix. Is there any way for the ... another function to accomplish the same task? See Question&Answers more detail:os...

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

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