# xarray.core.accessor_str.StringAccessor.capitalize

#### StringAccessor.capitalize()[[source]](https://github.com/pydata/xarray/blob/main/xarray/core/accessor_str.py#L682-L707)

Convert strings in the array to be capitalized.

* **Returns:**
  **capitalized** (`same type as values`)

### Examples

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```pycon
>>> da = xr.DataArray(
...     ["temperature", "PRESSURE", "PreCipiTation", "daily rainfall"], dims="x"
... )
>>> da
<xarray.DataArray (x: 4)> Size: 224B
array(['temperature', 'PRESSURE', 'PreCipiTation', 'daily rainfall'],
      dtype='<U14')
Dimensions without coordinates: x
>>> capitalized = da.str.capitalize()
>>> capitalized
<xarray.DataArray (x: 4)> Size: 224B
array(['Temperature', 'Pressure', 'Precipitation', 'Daily rainfall'],
      dtype='<U14')
Dimensions without coordinates: x
```

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