Schemasprofile/v1

DataProfile

Entry point

What one dataset is, in the facts a validator needs: dimensions, columns with their types, distinct and missing counts, level counts for low-cardinality categorical columns, and complete-case and duplicate counts. Bounded by the number of columns rather than the number of rows, so it travels where the data cannot.

Raw JSONv1Unknown properties rejected

Properties

n_rowsrequired: integer≥ 0
Number of rows (cases).
columnsrequired: array | null
One row per column of the dataset, in column order.
level_countsrequired: array | null
Observed level counts in long form, one row per column and level, for categorical and string columns with at most 64 levels.
n_complete_casesrequired: integer≥ 0
Rows with no missing value in any column.
n_duplicatesrequired: integer | null≥ 0
Rows that repeat an earlier row exactly. Null when not counted.
fingerprintrequired: DataFingerprint | null

Relationships

Composes

datafingerprint