Recent questions tagged R

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r - Referring to previous row in calculation

I'm new to R and can't seem to get to grips with how to call a previous value of "self", in this case previous "b ... 3.0393... 4 20 4.6079... 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 - Combining two vectors element-by-element

I have 2 vectors, such as these: A <- c(1,2,NA,NA,NA,NA,7) B <- c(NA,NA,3,4,NA,NA,7) I would ... so can anyone provide a fast way to do 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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r - Split violin plot with ggplot2 with quantiles

In order to plot half densities, I am using the function described in this post: Split violin plot with ggplot2 However, ... )), geom = "text") 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 show directlabels after geom_smooth and not after geom_line?

I'm using directlabels to annotate my plot. As you can see in this picture the labels are after geom_line but I want ... F) + xlim(c(100,220)) 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 - Filtering single-column data frames

I am attempting to filter data frames that have only one column. This results in a vector being returned ... result, including the rownames? 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 - check if a program is installed

I'm writing a function that uses pandoc in R through the command line. How can I use R to check if pandoc ... be an issue for windows users)? 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 - Make legend invisible but keep figure dimensions and margins the same

I have made a plot with a legend. Using an image editing program I made the legend invisible (but otherwise ... document but only one legend. 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 - is ifelse ever appropriate in a non-vectorized situation and vice-versa?

(Background info: ifelse evaluates both of the expressions, even though only one will be returned. EDIT: This ... an explicit loop? 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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r - ggplotly not displaying geom_line correctly

I am trying to use ggplotly to add interactivity to my ggplot chart. I have tried running this in both ... I can display this correctly? 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 do you draw a boxplot without specifying x axis?

The base graphics can nicely plot a boxplot using a simple command data(mtcars) boxplot(mtcars$mpg) But ... following missing aesthetics: y 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 - Error with pred$fit using nls in ggplot2

So Im using nls in ggplot2 to plot a power curve code is below: mass <- c(4120,4740,5550,5610,6520,6870,7080 ... out why I am getting the error? 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 is ggplot2 plus operator defined?

The + usually throws non-numeric argument to binary operator when provided with something other than a number. But it ... of how this is done. 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 - Adding row to a data frame with missing values

So I have this data frame df <- data.frame( A=1:10, B=LETTERS[1:10], C=letters[1:10], stringsAsFactors= F ) ... <- "K" Is there a simpler way? 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 - match two data.frames based on multiple columns

My head stands still at the moment. I would like to match/extract data from a larger data.frame (df) ... would be highly appreciated, 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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r - How to remove rows with NAs only if they are present in more than certain percentage of columns?

I want to use na.omit (data) for the following example dataset, but on a condition so as to remove rows with ... NA 0.09 Thanks for the 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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r - tidyr separate column values into character and numeric using regex

I'd like to separate column values using tidyr::separate and a regex expression but am new to regex expressions df ... the name column as well? 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 - Piping Rscript gives error after output

I wrote a small R script to read JSON, which works fine but upon piping with Rscript myscript.R | head the ... I can and resolve the question. 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 - data.table objects aren't updated in Rstudio environment panel

A data.table object in the environment panel will not update its preview after new variables are added using the ... reason this is happening. 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 - Terminating an apply-based function early (similar to break?)

I am searching for a way to terminate an apply function early on some condition. Using a for loop, something ... the rest of the population. 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 - devtools::install_git Over SSH

I've written an R package that I keep in a (bare) git repository on an SSH server, and I want to ... help would be greatly appreciated. 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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r - How to use different font sizes in ggplot facet wrap labels?

I want to create two different sizes of text in the labels of my facet wrap. For example: Species X ( ... there a possibility to realize 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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r - standard deviation on dataframe does not work

I have an unexpected [for me at least] error in calculating a standard deviation. The idea [*] is to convert ... ] R in Action, Robert Kabacoff 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 subscript the x axis tick label

I generated this graph with the below script. But how could I subscript the "10" in PM10, "2" in SO2, ... (yintercept=0,alpha=0.5) BWplot 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 flatten the data of different data types by using Sparklyr package?

Introduction R code is written by using Sparklyr package to create database schema. [Reproducible code and database is ... output in CSV file. 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 round all values in a matrix?

I use the following method to store all my correlations in a matrix: corrs <- cor(dataset, use="pairwise.complete ... to apply it to all values. 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 - Importing many files at the same time and adding ID indicator

I have 91 files - .log format: rajectory Log File Rock type: 2 (0: Sphere, 1: Cuboid, 2: Rock) Nr of ... fix it? Is there a better solution? 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 debug methods from Reference Classes?

How to debug a call like getFields? I tried library(debug); mtrace(AB.setFields) but nothing happend. ... ) a$setFields(fields) a$getFields() 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 - It is possible to restore a session, locally, in a Shiny app if the inputs have been previously written in a RDS file?

I am developing a shiny app to be used locally. I am trying to develop a system for the user to be ... another session. Thanks a lot, Rachael See Question&Answers more detail:os...

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

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