/**
* Creates a data frame from the given keys and values.
*
* @param entries the keys and values with which the dataframe is populated
* @return a newly created {@code DataFrame}
*/
@SafeVarargs
@SuppressWarnings("unchecked")
static DataFrame fromEntries(
Map.Entry<Object, ? extends Vector> entry, Map.Entry<Object, ? extends Vector>... entries) {
return MixedDataFrame.fromEntries(ArrayAllocations.prepend(entry, entries));
}
/**
* Set the index
*
* @param key the first key
* @param keys the rest of the keys
* @return this modified
*/
default Builder setIndex(Object key, Object... keys) {
return setIndex(Index.of(ArrayAllocations.prepend(key, keys)));
}