Strategies for formatting JSON output from R

Question

I\'m trying to figure out the best way of producing a JSON file from R. I have the following dataframe tmp in R.

> tmp
  gender         


        

Answer 1

It seems to me you can do this by sending each row of your data.frame to JSON with the appropriate apply statement.

For a single row:

library(RJSONIO)

> x <- toJSON(tmp[1, ])
> cat(x)
{
 "gender": 1,
"age":     30,
"welcoming": 4,
"proud": 4,
"tidy": 4,
"unique": 4 
}

The entire data.frame:

x <- apply(tmp, 1, toJSON)
cat(x)
{
 "gender": 1,
"age":     30,
"welcoming": 4,
"proud": 4,
"tidy": 4,
"unique": 4 
} {

...

} {
 "gender": 2,
"age":     26,
"welcoming": 3,
"proud": 2,
"tidy": 4,
"unique": 3 
}