# General info

> For the complete documentation index, see [llms.txt](https://kotlin.github.io/dataframe/llms.txt).

General information about [DataFrame](dataframe.html):

* [count](count.html) / [rowsCount()](rowscount.html) — number of rows

* [countDistinct()](countdistinct.html) — number of distinct rows

* [columnsCount()](columnscount.html) — number of columns

* [isEmpty()](isempty.html) / [isNotEmpty()](isempty.html#isnotempty) — whether there are no rows or no columns

* [columnNames()](columnnames.html) — list of column names

* [columnTypes()](columntypes.html) — list of column types

* [head(n)](head.html) — first n rows (default 5)

* [schema()](schema.html) — schema of columns

* [describe()](describe.html) — general statistics for every column

API reference: [api package](https://kotlin.github.io/dataframe/api-docs/core/org.jetbrains.kotlinx.dataframe.api/index.html)