I have graph output in the R/Radian console and in Jupyter, Jupyterlab, and VS Code notebooks. I also get the Rplots.pdf sent to the working directory as expected. However, I don't get embedded "pop-up" graph output when running R scripts in the VS Code editor e.g. filename.R. I always get this error message from CodeStream.
WebviewPanel: FAILED posting webview/editors/didChangeVisible to the webview; Webview is invisible and can't receive messages.
I've read a few SO questions on the Webviews, but they seem to be related to web/JSON loading issues and not R plots.
Seems I am missing a setting or package that pushes the Webview out.
Example code block if needed.
data("mtcars")
cars <- mtcars
print(nrow(cars))
print(head(cars, 10))
x <- c(0:10)
plot(x, sin(x))
Related
My question: How to let grDevices::dev.new() work well ?
To avoid the error Error in plot.new() : figure margins too large coursing the small plot region,
I wrote the code grDevices::dev.new() in the front of plot().
However this code does not work in the first time (or after pushing the button .clean all plot button )
And this cause the errors (e.g., in the R CMD check).
Do I misunderstand the function grDevices::dev.new() ?
REF?:
R: Open new graphic device with dev.new() does not work
Answer
Using grDevices::windows() instead of grDevices::dev.new(), I overcome the issues.
Unfortunately, we cannot use grDevices::windows() , because the following error occurs in the R CMD check:
Error in grDevices::windows() :
screen devices should not be used in examples etc
I am getting an error when I am trying to run the code below in R-Studio 3.3.2 on a Mac (OS Sierra)
devtools::install_github('ramnathv/rCharts')
install.packages("knitr")
require(rCharts)
require(knitr)
haireye <- as.data.frame(HairEyeColor)
n1 <- nPlot(Freq ~ Hair, group = 'Eye', type = 'multiBarChart',
data = subset(haireye, Sex == 'Male')
)
n1$save('fig/n1.html', cdn = TRUE)
cat('<iframe src="fig/n1.html" width= 100%, height=600</iframe>')
Pls see output below:
Error in file(con, "w") : cannot open the connection
In addition: Warning message: In file(con, "w") : cannot open file 'fig/n1.html': No such file or directory
But I am able to generate the reqd bar graph in the viewer when I use:
n1$show(cdn = TRUE)
in lieu of n1$save('fig/n1.html', cdn = TRUE)
To take care of write permission issues (if any), I also tried including the line below, altering the WD path wherever necessary.
knitr::knit2html('Users/documents/n1.html')
But it did not help. I see the n1.html file created but it only opens an empty browser.
Any help to resolve this is appreciated.
Best,
S
A lot of times we face this error due to caching in RStudio and in that case, actual code errors don't show up. Restart RStudio and this error will be gone and actual code errors would show.
You have two separate problems.
The connection error appears because the fig/ folder does not exist. Create the folder and the save command will work. R has functions to check the existance of directories and create new ones if you would like to do it in your code.
The second problem comes from the way you save, you should use n1$save('fig/n1.html', standalone = TRUE). Here you have a similar situation.
As a side-note, I would say rCharts is not currently developed or mantained at all, so I would recommend you to use another library for your charts. In my opinion Plotly is quite nice. rCharts brought the NVD3 project to R and the chart style is in my opinion really nice. However, as far as I know both projects are stopped so I would look for a library that is still alive.
I have fixed this problem with good old rm(list=ls()) . I know I have
fallen into sequences where the error stops execution of my script. I fix the error, and then it won't run. This is likely due to lazy evaluation but it is a near impossible problem to diagnose, so the solution at the top works almost all the time.
Followed these instructions to set up REPL for sublime text
http://www.kevjohnson.org/using-r-in-sublime-text-3/
R console is running. But I am unable to push text to console using the shortcuts
Ctrl+Shift+,,l
I must be doing something wrong here, not able to figure it out on my own. Any help appreciated.
I get the following error:
Cannot find REPL for 'regexp'
Edit: Adding sample code
library("e1071")
data(iris)
m <- naiveBayes(Species ~ ., data = iris)
m
table(predict(m, iris), iris[,5])
REPL checks scopes to know what console to run, and returns an error if no console is associated to a language. It might have been that your file was not in the R syntax.
To change the syntax : Command Panl (ctrl+shift+p), Set Syntax: R
I've created a custom plotting function for a scatterplot with error bars on multiple series using rCharts. I successfully embedded said plot in a shiny application. The first time it shows everything works fine:
However, if I try to update the plot (e.g. by changing some input) the plot does not change and I get the following JS error message on the browser's console:
TypeError: 'undefined' is not a function (evaluating 'this[b].destroy()')
The strange thing is that if I check the plot object (p) it seems fine, e.g. I can plot it in Rstudio and also get a viable html page from it. I guess the problem is somehow that the old plot cannot be removed properly.
I use rCharts v. 0.4.5 and shiny 0.10.2.1 and I have uploaded an example shiny app to github:
https://github.com/mlist/highcharts_scatterplot_example
As extra dependency you will need to install the packages rjson and foreach. You can then run the app with
runGitHub(repo="mlist/highcharts_scatterplot_example")
```
Use renderChart2 rather then renderChart. Replace output$testPlot with :
output$testPlot <- renderChart2({
p <- highcharts.scatterplot.plate(data.frame(seq(1:nrow(iris)),iris[,2], input$error, iris[,5]))
return(p)
})
You can try the change at:
shiny::runGitHub(repo="johndharrison/highcharts_scatterplot_example")
When I want to create the map using the gvisGeoMap() from googleVis, I get error:
## Using the google visualization API with R
library(googleVis)
input<- read.csv("data.csv")
select<- input[which(input$Subgroup=="Total 5-14"),]
select<- input[which(input$Subgroup=="Total 5-14 yr"),]
Map<- data.frame(select$Country.or.Area, select$Value)
names(Map)<- c("Country", "Percentage")
Geo=gvisGeoMap(Map, locationvar="Country", numvar="Percentage",
options=list(height=350, dataMode='regions'))
plot(Geo)
#starting httpd help server ... done
#Error in ifelse(interactive(), getOption("browser"), "false") :
#replacement has length zero
The above is the error in the "RGui". The error message in "RStudio" is differet:
#object of type 'closure' is not subsettable
and the browser does not fire at all. The HTTP server works fine since I can simply call help pages.( for example ?googleVis will fire up the browser and give the help page). The "Geo" object in the code above is fine and contains the html code only that the plot() does not do what it is supposed to do (I can manually run the html file in the temp folder and see the results). The example above is available here.
I would appreciate your clues.
Thank you
This is the result of correspondance with the the Authors of the packages. It seems that there was a bug that prevented the plot to work properly. The released a new version. You can find the link below.
TQ
.....
Yesterday evening I realised that with version 0.3.0 of googleVis I unfortunately introduced a bug in RStudio and R on Windows.
The bug has been fixed already and a new version (0.3.1) is available from our project site (here is the link), but not on CRAN yet.
I have put a note on my blog (here is the link) to inform others as well.
I hope this helps.
Best regards
Markus