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r - Shiny selectInput to select all from dropdown
    I have selectInput dropdown like this: selectInput("locInput", "Location", choices=c("All","New Mexico", " ... to make it work 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 - Main title at the top of a plot is cut off
    When I plot two graphs after creating a new x11() device and want to set a overall title it is not displayed ... outer = TRUE) Looks like 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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356 views
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r - The result of rpart is just with 1 root
    As in my dataset ,the Leakage have two value 1,0. There are just about 300 rows with 1 and extra in 569378 rows are ... xstd 1 0.0033246 0 1 0 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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r - pass string to facet_grid : ggplot2
    In ggplot2 you can pass character arguments inside a user defined function using aes_string. How can you do the same for ... ', 'cyl', 'am') See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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832 views
1 answer
r - Order of legend entries in ggplot2 barplots with coord_flip()
    I'm struggling get the right ordering of variables in a graph I made with ggplot2 in R. Suppose I have a ... , hopefully, be helpful to others. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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354 views
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r - Order and color of bars in ggplot2 barplot
    I have a very annoying problem with a stacked bar plot created using ggplot2. There are a couple of similar ... = element_blank()) please 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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744 views
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r - Plot circle with a certain radius around point on a map in ggplot2
    I have a map with the 8 points plotted on it: library(ggplot2) library(ggmap) data = data.frame( ID = as. ... or-km How can I 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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303 views
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r - How to convert a string in a function into an object?
    I would like to convert a string that I pass in a function into an object (or column name). I ... and eval functions. Unfortunatelly I failed 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 - Conditional `echo` (or eval or include) in rmarkdown chunks
    I would like to create an Rmarkdown document (pdf or html) that has some chunks "executed" conditionally. The ... include=F)? Thank you. 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 - Condition a ..count.. summation on the faceting variable
    I'm trying to annotate a bar chart with the percentage of observations falling into that bucket, within a facet. This ... -1) + facet_wrap(~f) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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429 views
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r - finding the bounding box of plotted text
    I would like to jitter the text on a plot so as to avoid overplotting. To do so, I assume that I need a bounding box ... .6),c(.5,.5),check=T) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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291 views
1 answer
r - matrix %in% matrix
    Suppose I have two matrices, each with two columns and differing numbers of row. I want to check and see which ... c(FALSE,TRUE,TRUE,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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457 views
1 answer
r - How to change the position of the table of contents in rmarkdown?
    With RStudio and knitr I see that I can add a TOC with the following code in my .rmd file. --------- ... but it did not change the TOC position. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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323 views
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r - subsetting in data.table
    I am trying to subset a data.table ( from the package data.table ) in R (not a data.frame). I have a ... are not just 1 but multiple years? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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714 views
1 answer
r - Unable to install.packages(): system call failed: Cannot allocate memory; installation of package had non-zero exit status
    I'm using R version 3.1.2 (2014-10-31) -- "Pumpkin Helmet" on Platform: x86_64-pc-linux-gnu (64-bit) ... do with the problem. Thanks in advance! See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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468 views
1 answer
r - How do you extract a few random rows from a data.table on the fly
    I have a large data.table (about 24000 rows and growing). I want to subset that datatable based on a couple ... of the initial data.frame was? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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749 views
1 answer
r - How to make the horizontal scrollbar visible in DT::datatable
    Using R shiny & DT package, I am creating certain tables. The number of columns vary as per user input & is ... I see - no horizontal scrollbar. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
1 answer
r - wrap long text in kable table column
    I would like wrap long text in my kable table. Here is a simple example of a table with column text that is too long ... 1, 2)) kable(test) ``` See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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398 views
1 answer
r - Filter one selectInput based on selection from another selectInput?
    I have two selectInputs, and I would like the selection in the first one (Brand) to change the possible selections in ... = icon("table") ) }) 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
1 answer
r - How to properly document S4 "[" and “[<-“ methods using roxygen?
    Below I posted a mini example in which I want do write documentation for an [ method for a S4 class. ... in manual 'Writing R Extensions'. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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403 views
1 answer
r - Dynamic position for ggplot2 objects (especially geom_text)?
    When using ArcGIS to make maps, the software by default pushes point and polygon labels around automatically to ... a position_dynamic in R? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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473 views
1 answer
r - Using dplyr to conditionally replace values in a column
    I have an example data set with a column that reads somewhat like this: Candy Sanitizer Candy Water Cake Candy ... based solution. Thank you! See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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491 views
1 answer
r - ggplot2: line connecting the means of grouped data
    I'm trying to group one variable of my data by another and then plot a line through the means. It works fine ... colour="red", geom="point") See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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579 views
1 answer
r - How to pass environment variables to shinyapps
    I want to pass secure parameters to shinyapps.io deployment so my application could get them via: Sys.getenv( ... in the rsconnect package. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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413 views
1 answer
r - rm(list=ls()) doesn't completely clear the workspace
    This is a very minor issue, but I would like to understand exactly what is going on here. Say I do the ... do I completely clear a workspace? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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703 views
1 answer
r - Showing different axis labels using ggplot2 with facet_wrap
    I have a time series with different variables and different units that I want to display on the same plot. ggplot ... (V)". Is this possible? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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661 views
1 answer
r - Is there a more efficient way to replace NULL with NA in a list?
    I quite often come across data that is structured something like this: employees <- list( list(id = 1, dept ... efficiently on a large dataset? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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349 views
1 answer
r - How do I create a list of vectors in Rcpp?
    I'm writing an Rcpp module an would like to return as one element of the RcppResultSet list a list whose elements ... lists of vectors in Rcpp? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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