## set sdfattr

`set sdfattr varname attribute_type attribute_name attribute_value`

Sets attribute metadata to be included in the output file created with the `sdfwrite` command.

`varname` May be set to "global", "longitude", "latitude", "level", "time", "ensemble", or
`` a defined variable name
`attribute_type` May be one of five data type types (valid aliases in parentheses):
`` "char" (String, Str, Url)
`` "short" (Int16, UInt16)
`` "int" (long, Int32, UInt32)
`` "float" (Float32)
`` "double" (Float64).
`attribute_name` May be any single word or string with no spaces (e.g.: "units", "long_name")
`attribute_value` May be any string as long as the length of the entire entry does not exceed 512 characters.
For numeric types, may be a list of comma-delimited numerals.

### Usage Notes

This command is available in GrADS v2.0.a3 or higher.

The `reset` command will release all the attributes from memory. To do this without resetting all the other user-specified options, use the `clear sdfwrite` command.

### Examples

`set sdfattr precip String units mm/day`
`set sdfattr precip String long_name Daily Precipiation`
`set sdfattr precip double actual_range 0,57.5`