How to convert a JSONArray into a R data frame using Java?

Question

Is there a way to convert a JSONArray to a R data frame using Java?

We felt it would a better way to convert a JSONArray to a R data frame, rather than writing it to a file/db and then again retrieve it from R.

Any suggestions/recommendations of libraries would be awesome.

Hleb · Accepted Answer · 2018-06-27 10:19:13Z

1

First for working with R language in Java project you need to use some JVM-based R interpreter/interface. For instance you can look on next few options:

Renjin - JVM-based interpreter for the R language for statistical computing;
rJava - R to Java interface;
FastR - an implementation of the R Language in Java atop Truffle.

Approach to converting will depend on what tool you choose.

answered Jun 27, 2018 at 10:19

Hleb

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2 Comments

user3616977 Over a year ago

We use rJava, but are not found a way to convert a JSON to data frame. If there is a way, please let us know...it would be great

Hleb Over a year ago

I didn't work with rJava unfortunately, and I don't pretty well know R, but I think it will be easier to serialize JSONArray to String JSON and then process it with R approach, something like in this question - stackoverflow.com/questions/16947643/….

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