The [ chart title ] chart accepts [JSON](https://en.wikipedia.org/wiki/JSON) data of the format returned by [`d3.csv()`](https://github.com/d3/d3-3.x-api-reference/blob/master/CSV.md). It plots the number of [ chart name ] by site and form status.

## Data structure
[ data structure ]

## Data specification
required and optional variables:

| Setting | Default | Data Type | Description | Required? |
|:--------|:--------|:----------|:------------|:---------:|

## Example data
the first few records of the [test dataset](https://raw.githubusercontent.com/RhoInc/data-library/master/data/clinical-trials/data-cleaning/undefined.csv):