# ``sample``
## Properties
:dimensions: N_PROF, N_LEVELS
:dtype: str32
## Default Attributes
| Attribute | Value |
|-----|-----|
|``whp_name`` | ``SAMPNO`` |
## Description
The sample number. Often it is the rosette position, however, groups may use their own sampling identification scheme. Allowed characters are U+0030 to U+0039, U+0041 to U+005A, U+0061 to U+007A, and U+005F (``0-9``, ``a-z``, ``A-Z``, and ``_``)
:::{warning}
The value may not be numeric, ensure that any software reading the file can handle UTF-8 data of the specified allowed code points.
:::