Recent questions tagged R

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r - How to include interactive input in script to be run from the command line

I am trying to write an interactive R script. For example: try.R: print("Entr some numbers. >",quote=F) ... in interactive input from the user? 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 - Use ls() or objects() to get objects of class data.frame

Is there anyway I can loop through some set of objects and apply a function to each? When I type ls() or ... ls or objects through a function? 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 - Color one point and add an annotation in ggplot2?

I have a dataframe a with three columns : GeneName, Index1, Index2 I draw a scatterplot like this ggplot(a, aes( ... the easiest way to do 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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301 views

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r - Is there a way to have conditional markdown chunk execution in Rmarkdown?

I am an instructor looking to make a homework assignment and homework solution guide from the same Rmarkdown file by ... another way 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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r - How to skip an error in a loop

I want to skip an error (if there is any) in a loop and continue the next iteration. I want to ... this question, I really appreciate 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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r - Pandoc insert appendix after bibliography

I'm using the knitr package and pandoc in R to convert a .Rmd file to a PDF. Pandoc is linked to a ... insert an appendix after the references? See Question&Answers more detail:os...

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

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497 views

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r - Transposing a dataframe maintaining the first column as heading

I have a big dataframe, but small example would be like this: mydf <- data.frame(A = c(letters[1:10]), M1 ... names(tmydf) <- tmydf[1,] 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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r - How can I add another layer / new series to a ggplot?

In ggplot I can add a series to a plot with: ggplot(diamonds, aes(x = carat, y = price)) + geom_point() How ... can't figure out how to do 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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r - Remove a library from .libPaths() permanently without Rprofile.site

How can I permanently remove a library in R? .libPaths() [1] "\\per-homedrive1.corp.riotinto.org/ ... also doesn't stick between sessions 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 - Remove rows where all variables are NA using dplyr

I'm having some issues with a seemingly simple task: to remove all rows where all variables are NA using dplyr. ... the job done. Other ideas? 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 - generating a vector of difference between two vectors

I have two csv files, and each of which consists of one column of data For instance, vecA.csv is like id 1 ... of elements belonging to B only. 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 - How to add variable key/value pair to list object?

I have two variables, key and value, and I want to add them as a key/value pair to a list: key = "width" value = ... # [1] 32 How can I 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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331 views

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r - monitoring for changes in file(s) in real time

I have a program that monitors certain files for change. As soon as the file gets updated, the file is processed. ... } Sys.sleep(sleep.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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416 views

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r - using predict with a list of lm() objects

I have data which I regularly run regressions on. Each "chunk" of data gets fit a different regression. ... independent values from newData? 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 - State name to abbreviation

I have a large file with a variable state that has full state names. I would like to replace it with the ... May be using replace() statement? See Question&Answers more detail:os...

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

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1.4k views

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r - How to suppress warnings when plotting with ggplot

When passing missing values to ggplot, it's very kind, and warns us that they are present. This is ... when printing a ggplot2 object? 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 - What algorithm I need to find n-grams?

What algorithm is used for finding ngrams? Supposing my input data is an array of words and the size of the ngrams ... a R package for N-GRAMS? See Question&Answers more detail:os...

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

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476 views

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r - ggplot2: Multiple color scales or shift colors systematically on different layers?

When I make box plots, I like to also show the raw data in the background, like this: library(ggplot2) ... ugly legend. Any better ideas? See Question&Answers more detail:os...

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

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381 views

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r - ggplot2: color individual words in title to match colors of groups

I recently saw a line chart in the Economist where the title had colored words to match the colors of the groups ... c('#EEB422', '#238E68')) See Question&Answers more detail:os...

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

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285 views

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r - How can I combine multiple ggplot2 elements into the return of a function?

If I try to manually compose some elements of a ggplot2 plot, it works just fine: > p <- ggplot(aes ... ggplot2 elements within a function body? See Question&Answers more detail:os...

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

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383 views

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r - risks of using setwd() in a script?

I've heard it said that it is bad practice to use setwd() in a script. What are the risks/dangers ... with it? What are better alternatives? See Question&Answers more detail:os...

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

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400 views

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r - How to add boxplots to scatterplot with jitter

I am using following commands to produce a scatterplot with jitter: ddf = data.frame(NUMS = rnorm(500), GRP = ... this. Thanks for your 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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448 views

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r - Place title of multiplot panel with ggplot2

From the help found here I've managed to create this multiplot panel: with the following code: library(zoo) library(ggplot2 ... .pos.col = 1:2)) See Question&Answers more detail:os...

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

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288 views

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r - Best practices for storing and using data frames too large for memory?

I'm working with a large data frame, and have run up against RAM limits. At this point, I probably need to ... has reached out-of-memory 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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544 views

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r random forest error - type of predictors in new data do not match

I am trying to use quantile regression forest function in R (quantregForest) which is built on Random Forest package ... not with the other way? See Question&Answers more detail:os...

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

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452 views

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r - Standard error bars using stat_summary

The following code produces bar plots with standard error bars using Hmisc, ddply and ggplot: means_se <- ddply( ... -hacky solution for 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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439 views

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r - Formatting mouse over labels in plotly when using ggplotly

I am struggling with text formatting when using ggplotly and the mouse over functionality. library(plotly) df <- ... mouse over bubble thing? See Question&Answers more detail:os...

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

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242 views

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r - What are the differences between vector, matrix and array data types?

R comes with three types to store lists of homogenous objects: vector, matrix and array. As far as I can ... , or will it happen automagically? See Question&Answers more detail:os...

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

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