How to output an html file in an R function?

Question

I am interested in writing a function where it takes a data frame as an input and returns an html page via knitr as an output based on the information in the data frame.

Here is sort of the psuedocode of the function that I wanted to write:

htmlOuput <- function(Df) {
   newDf<-someManipulation(Df)
   meltedDf<-melt(Df)
   g<-ggplot(meltedDf)
   return (html(g)) # This is the part that I am not sure about
  }

Is there a way to output an html page as a function output via knitr ?

I know that g is a ggplot object, so I want the plot generated through ggplot rendered in the html file — DKangeyan
– DKangeyan, Commented Dec 4, 2016 at 2:38
@rawr Isn't browseURL to load an HTML file, I wanted to render the plot that I generate into an html file — DKangeyan
– DKangeyan, Commented Dec 4, 2016 at 3:01

DKangeyan · Accepted Answer · 2017-01-25 17:02:09Z

1

After some research I found that calling an rmarkdown file to render within a function to be the best option.

htmlOuput <- function(Df,meta = NULL, cacheable = NA) {
    rmarkdown::render('./report.rmd',params=list(output_file = report.html))
}

Where the report.rmd will contain the manipulation of the data frame

newDf<-someManipulation(Df)
meltedDf<-melt(Df)
g<-ggplot(meltedDf)
g

answered Jan 25, 2017 at 17:02

DKangeyan

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Comments

pachadotdev · Accepted Answer · 2016-12-03 16:18:33Z

0

I guess you took the hard way.

An easy approach would be to use htmlTable

I have used that to export to html and it is easy to use.

answered Dec 3, 2016 at 16:18

pachadotdev

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1 Comment

DKangeyan Over a year ago

htmlTable seem to only work for tables, but what I am looking for is a html report mainly with figures from the given data frame

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