Read CSV on the Web — read

If the argument to filename is a json metadata document, this will be used to find csv files for each table using the value of csvw:url.

read_csvw(filename, metadata = NULL)

Arguments

filename: a path for a csv table or a json metadata document
metadata: optional user metadata

Value

csvw metadata list, with a dataframe property added to each table

Details

If the argument to filename is a csv file, and no metadata is provided, an attempt is made to derive metadata.

If the argument to filename is a csv file, and the metadata is provided, then the given csv will override the value of csvw:url.

The csvw metadata is returned as a list. In each table in the table group, an element named dataframe is added which provides the contents of the csv table parsed into a data frame using the table schema.

Examples

if (FALSE) {
read_csvw("metadata.json")
read_csvw("table.csv", "metadata.json")
}