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QUESTION
I am in the process of creating a Shiny app, which reads in Excel files, renames them and then converts them into PDF files. The conversion step is performed by LibreOffice at the command line with:
...ANSWER
Answered 2022-Mar-10 at 11:04I tested this in a Docker container, which may or may not lead to the same error. The error I was getting was a "missing file", even when executed as from an R process launched as root
.
QUESTION
I'm making a polar-transformed barplot in which several of the x-axis labels overlap with the plot area. For context, I'm working on a shiny application that you can find a copy of here.
I've tried using theme(axis.text.x = element_text(vjust = -someNumber))
, but it doesn't seem to be doing anything.
Here is a reproducible example to demonstrate the problem:
...ANSWER
Answered 2022-Feb-15 at 12:27If you switch from coord_polar
to coord_curvedpolar
from the geomtextpath
package, you can have curved labels that never overlap the plotting area. The problem you describe was the main reason for writing coord_curvedpolar
in the first place.
In addition, the x axis labels are adjustable in the radial direction using the vjust
setting inside theme(axis.text.x = element_text(...))
.
No other parts of your code need to change, and the other elements of the plot are exactly the same as they would be with coord_polar
.
I think this makes for a much nicer looking plot (though I am possibly biased...)
QUESTION
I'm working on an interactive, polar ggplot bar with polar coordinates. The end goal is for the bars in each segment to 'rise' to meet the position of a mouse click in that sector.
The trouble is that click data for polar ggplots is cartesian, rather than polar: The bottom-left of the plot is c(0,0), rather than the centre. How can I get around this problem? Is there a simple coordinate transform I could use, or an option I could set?
You can see a prototype of the app here, and my code is below:
...ANSWER
Answered 2022-Feb-11 at 23:22You "just" need to convert back from polar projection.
QUESTION
I recently created this post trying to figure out how to reference GitHub Secrets in a GitHub action. I believe I got that solved & figured out and I'm onto a different issue.
Below is a sample of the workflow code as of right now, the issue I need help with is the Create and populate .Renviron file
part.
ANSWER
Answered 2021-Sep-01 at 09:23The file is there where you expect to be
QUESTION
See below a very simple R shiny app that renders a reactable.
...ANSWER
Answered 2022-Jan-21 at 14:40Not sure what your expected result looks like, but how about this:
QUESTION
I am trying to render a table on shinyapps.io, but it is populating with all NA's. I am scraping NCAA basketball spreads from https://www.vegasinsider.com/college-basketball/odds/las-vegas/. Locally, the table renders fine. But on shinyapps.io, all the numeric spreads display as NA's. It only displays correctly on shinyapps.io if all the spread values are characters. But then I cannot perform any math operations. As soon as the BetMGM, Caesers, FanDuel columns are numeric, they display with NA. I'll provide some code and data to help recreate the issue. There was a lot of data cleaning steps that I will skip for the sake of brevity.
@akrun here is the code to scrape the table. I do this and then some regex to split apart the game_info into components.
...ANSWER
Answered 2021-Dec-24 at 16:58It seems that the spread_table
after scraping may be post-processed in a way that couldn't convert the extracted substring into numeric
class - i.e. when we do as.numeric
, if there is any character, it may convert to NA
.
In the below code, select
the columns of interest after scraping, then extract
the substring from the 'game_info' column to split into
'date', 'time', 'away_team_name' and 'home_team_name' based on a regex pattern matching and capturing ((...)
) those groups that meet the criteria. (^(\\S+)
) - captures the first group as one or more non white spaces characters from the start (^
) of the string, followed by one or more white space (\\s+
), then capture characters that are not newline character (([^\n]+)
) followed by any character that is not letter ([^A-Za-z]+
), capture third groups as one or more characters not the newline followed by again the characters not a letter and capture the rest of the characters ((.*)
). Then loop across
the 'BetMGM' to 'FanDuel', extract the substring characters not having u
or -
and is followed by a space ((?=\\s)
), replace the substring fraction with + 0.5
(as there was only a single fraction), loop over the string and eval
utate the string
QUESTION
I want to exclude certain data points that are selected by the user by clicking, like in this example (but using plotly). I tried to do it with the code i show below but it doesnt work.
What i'm triying to do is identify the position of the data point and then once i get the position, set the var delete
as TRUE
if the row_number()
is in the set of selected data points and then just filter is delete
is TRUE
.
I dont know if this is the most effient form to perfom that.
I would appreciate any help or guidance.
...ANSWER
Answered 2021-Dec-21 at 23:49Nice trick with event_data
there! I think all that's needing done differently is to make myData$df
a named reactiveValue
(with one small correction to p2$points
lower down). This works for me now:
QUESTION
I was trying to create a Shiny app that takes code blocks and runs the code then gives the output for that code block.
To do that I take a textInput, then with the following, tried to provide outputs for users.
...ANSWER
Answered 2021-Dec-14 at 21:57use shinyCatch
from spsComps
Example for your case:
QUESTION
I have created a survey in Shiny and I would like that the options in this survey are always different. To do so, I have used the sample
function and each time I run the app on my local machine the possible options for the answers are always different as I want.
However, I have recently deployed the app through shinyapps.io and it seems that the there is no more randomness in the possible options.
This is the code of my shiny app :
ANSWER
Answered 2021-Dec-04 at 16:46This can be fixed by moving the random calculation inside the server
function, otherwise, if you execute a random function outside the server
, it will work, but it will be the same for all the users. This behaviour is to prevent large calculations from happening unnecessary times if for example, all users will have access to the same data.
Below is the code for the app i deployed in shinyapps.io
. Because i need to execute create_options()
inside the server
, i will use renderUI()
. If I use sample()
inside any part of the UI it will only be executed once, hence the static options.
Also, i used prettyRadioButtons
from shinyWidgets
to prevent that users pick more than one option.
code:
QUESTION
Is there a way to get access to the raw code of an application hosted on Shinyapps.io. I hosted my shiny application on shiny apps and made multiple changes in my code in my system. I need the older version of my app which has been hosted. Any help
...ANSWER
Answered 2021-Nov-17 at 21:14How about downloading it from the dashboard?
Please, note that you'll receive an extensionless file in the archive. Just add .tar
to it, and you'll be able to open the file as an archive, as it was mentioned here.
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