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Questions tagged [ioslides]

Use this tag for questions related to ioslides, from R markdown.

To create an presentation from R Markdown you specify the ioslides_presentation output format in the front-matter of your document. You can create a slide show broken up into sections by using the # and ## heading tags (you can also create a new slide without a header using a horizontal rule (----).

as mentioned here, along with some examples.

Note that you are encouraged to use if you are using .

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Inserting a slide break within a code chunk in rmarkdown

I am preparing some slides using Rmarkdown (ioslides_presentation) and I was wondering if it is possible to force a slide break within a chunk of code. I saw some similar questions for pdf, but I cannot make those solutions work in the case of HTML…
chad_pew
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Why does the ggplotly function not display in my Rmarkdown ioslides

I am trying to make a slide with an interactive graph on it. The ggplotly function works in the console but does not show in the markdown chunk - the corresponding slide is blank. A normal plot shows up just fine. --- title: "TEST" author:…
Adam Brayne
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Reducing column header names font size in kable tables in Rmarkdown (ioslides)

In all my tables that I'm trying to produces in ioslides I am getting a result that shows a massive column name. How do I shrink this to make the table look okay? Here is one example, but the same thing happens with every table. What am I missing?…
theimmortal1
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Make ioslides default to widescreen

In ioslides you can make the slide widescreen by pressing 'w'. Is there any setting in the css or yaml header to make widescreen the default?
jzadra
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GitHub hosted css files not loading anymore in ioslides

After a recent update of knitr, my ioslides don't seem to load the CSS file hosted on github. This used to work fine but now it doesn't anymore. Locally the CSS file works fine, and the css file hosted on Github is publicly accessible. output : …
Sharon
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Unable to properly open html IOSlides output

I have created an Rmarkdown IOSlides presentation. When I knit I obtain my .html output, I open it from the folder I've used as directory during the writing. When I send the html output to another computer or even if I send it to another folder and…
Alberto Torrejon Valenzuela
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Change font color of the subtitle in ioslides' cover

I would like to change the color of the subtitle in my ioslides very first slide (the cover). I managed to change the color, size, etc of the title, as well as the Author and Date. However, I do not know how to deal with the subtitle. This is my…
antecessor
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Is there a way to use html-files (layouts) in ioslides (R Markdown)?

I am just beginning to use ioslides to create very simple html-based presentations. In my presentation, I will often use a two-column layout (plots on the left and text on the right). I would like the columns to be of different width (60%/40%). A…
Patrick Balada
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Multiple Shiny apps in ioslide presentations

I am trying to develop my class lecture slides using Shiny apps and ioslides. I would like to have several Shiny apps, each on a different slide to illustrate different concepts. When I naively write the input and render code for an app on a…
Stan
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Leaflet in ioslides_presentation puts unnecessary white space in box to toggle layers. Way to reduce size of box?

I'm making a presentation using ioslides_presentation and am embedding an interactive map using Leaflet. The white box used to toggle different layers has a lot of unnecessary white space. This is not an issue when making the output an html_document…
Rob Marty
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Adjust Shiny app size in ioslides with options in ShinyAppFile

This is not a duplicate of neither Shiny app size in ioslides nor Full size shiny app in an ioslides markdown presentation slide as they seem not to answer my question. I have a Shiny app built with airquality and having a long sidebar panel, and it…
ytu
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Looping through images in directory: ioslides

I'm automating a presentation and want to create a slide for each image in a directory (the image filenames are all .png files with three-character names). This works as desired to test that the slide with title and image will render: ```{r,…
Bryce F
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Knitr ioslides: customize code chunk size

As per this answer and other resources, my understanding is the when setting up CSS for an Rmarkdown presentation, code.r{} should control the parameters for echoed code, while pre{} should control the size of the output. However, pre{} seems to be…
Stonecraft
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Gradually reveal blocks of text within a slide

Does anyone know of a quick way to gradually reveal text within a slide in ioslide? The goal would be to not have to repeat the whole block of previous text in order to get a sequence of slides where the amount of text gradually increases, but just…
sinandrei
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Change ionic slide box animation speed

I'm using $ionicSlideBoxDelegate.next() with a custom button to advance a slider. That works fine.My goal is to slow down the slide animation when someone actually pressed the next button.
karthika v nair
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