Recent questions tagged R

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r - Split a file path into folder names vector

In R, with file.path, you can convert a character vector into a full file path, automatically using the ... split_path(dirname(path)))) } See Question&Answers more detail:os...

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

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365 views

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r - Plot angle between vectors

I am searching for quite a while already now for a function that plots the angle between two arrows / line ... has a package for everything. See Question&Answers more detail:os...

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

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551 views

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r - How to have a new line in a `bquote` expression used with `text`?

I want to have a new line in my bquote envrionment, how can I do this? my code: test<-c(1,2,3,4,4.5,3.5,5 ... =lines ,col="red", cex = 1.4) See Question&Answers more detail:os...

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

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425 views

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r - How can I color the ocean blue in a map of the US?

I would like to draw a map of the US over an image, but then fill in the oceans. here is my starting point: ... to be filled in a solid color. See Question&Answers more detail:os...

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

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524 views

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r - Extracting output from principal function in psych package as a data frame

When I use the principal function, like in the following code, I get a nice table which gives all the ... Thanks for reading my post! See Question&Answers more detail:os...

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

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534 views

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r - Making gsub only replace entire words?

(I'm using R.) For a list of words that's called "goodwords.corpus", I am looping through the documents in ... it's in quotes. Any suggestions? See Question&Answers more detail:os...

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

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599 views

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r - grid.table and tableGrob in gridExtra package

I am trying to format the table using gridExtra package. The gridExtra package I have is 2.0 and R version ... (something like row.names=FALSE) See Question&Answers more detail:os...

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

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r - How to load xlsx file using fread function?

I wanted to use fread function to load all the datasets as I think it would better to use one type of ... loading it using the fread function? See Question&Answers more detail:os...

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

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r - nls troubles: Missing value or an infinity produced when evaluating the model

I am an R newbie trying to fit plant photosynthetic light response curves (saturating, curvilinear) to a particular ... ))) coef(curve.nlslrc) See Question&Answers more detail:os...

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

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481 views

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r - calculate row sum and product in data.frame

I would like to append a columns to my data.frame in R that contain row sums and products Consider following ... data frame as shown above? See Question&Answers more detail:os...

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

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603 views

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r - How to find which polygon a point belong to via sf

I have a sf object that contains polygon information (precincts) for a metro area, obtained through a .shp file. ... /lon in the right format. See Question&Answers more detail:os...

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

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555 views

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r - Extract time (HMS) from lubridate date time object?

I have the following datetime: t <- "2018-05-01 23:02:50 UTC" I want to split it to time and ... missing in lubridate::hms or parse_date_time? See Question&Answers more detail:os...

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

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655 views

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r - ggsave png error with larger size

I'm saving a faceted ggplot2 plot which works fine to save at a smaller size, but fails when I want to ... ",colour=sex)+facet_wrap(~year) See Question&Answers more detail:os...

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

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486 views

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r - Split concatenated column to corresponding column positions

I have a data frame where a column may contain concatenated characters separated by |: df <- data.frame(FOO ... at delimiter in data frame See Question&Answers more detail:os...

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

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502 views

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r - Keep all plot components same size in ggplot2 between two plots

I would like two separate plots. I am using them in different frames of a beamer presentation and I will add ... some of the above solutions. See Question&Answers more detail:os...

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

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781 views

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r - How to use custom functions in mutate (dplyr)?

I'm rewriting all my code using dplyr, and need help with mutate / mutate_at function. All I need is ... misunderstanding of how dplyr 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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396 views

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r - directlabels: avoid clipping (like xpd=TRUE)

In the plot below, direct label positions were tweaked a bit vertically, but they get clipped at the left/right edges. Is ... y = y + 0.2))) See Question&Answers more detail:os...

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

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593 views

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r - Can transparency be used with PostScript/EPS?

I am trying to save an R plot as an EPS file but I have a problem with the following component of the plot - the ... lwd=0.8,lty=3) dev.off() See Question&Answers more detail:os...

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

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700 views

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r - Error: x must be atomic for 'sort.list'

This is weird. I get this error Error in sort.list(y) : 'x' must be atomic for 'sort.list' Have you ... (*, ".internal.selfref")=<externalptr> See Question&Answers more detail:os...

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

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420 views

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r - Change from date and hour format to numeric format

I am working in R and I need to change from a column in format 9/27/2011 3:33:00 PM to a value format. In Excel I ... 2 9/27/2011 15:34 c 3 7 1 See Question&Answers more detail:os...

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

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471 views

1 answer

r - How to change factor labels into string in a data frame

I have the following data frame: name1 name2 A B B D C C D A the columns "name1" and "name2" are treated as ... as string. how can i do that? See Question&Answers more detail:os...

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

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530 views

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r - ggplot each group consists of only one observation

I'm trying to make a plot similar to this answer: https://stackoverflow.com/a/4877936/651779 My data frame looks ... I change 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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557 views

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r - Random sampling to give an exact sum

I want to sample 140 numbers between 1000 to 100000 such that the sum of these 140 numbers is around 2 million ... how I can achieve this? See Question&Answers more detail:os...

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

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820 views

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r - UseMethod("predict") : no applicable method for 'predict' applied to an object of class "train"

I have a model (fit), based on historic information until last month. Now I would like to predict using my ... ... Thanks in advance, David See Question&Answers more detail:os...

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

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414 views

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r - `print` function in `ifelse`

I'm wondering why ifelse(1<2,print("true"),print("false")) returns [1] "true" [1] "true" whereas ... print within ifelse returns "true" twice See Question&Answers more detail:os...

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

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467 views

1 answer

r - Combine result from top_n with an "Other" category in dplyr

I have a data frame dat1 Country Count 1 AUS 1 2 NZ 2 3 NZ 1 4 USA 3 5 AUS 1 6 IND 2 7 AUS 4 8 USA 2 9 JPN 5 10 ... "6", "7", "8", "9", "10")) See Question&Answers more detail:os...

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

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569 views

1 answer

r - NOTE or WARNING from package check when README.md includes images

I have a package with a README.Rmd that I pass to rmarkdown::render() producing README.md and a directory ... ├── README.md ├── README.Rmd See Question&Answers more detail:os...

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

0 votes

654 views

1 answer

r - How to plot histogram/ frequency-count of a vector with ggplot?

I want to plot with ggplot the frequency of values from a numeric vector. With plot() is quite straight forward ... ggplot() to plot my vector? See Question&Answers more detail:os...

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

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