# sample_pwc

`Graph.sample_pwc(pwc, sample_times, *, name=None)`

Sample a Pwc at the given times.

### Parameters

**pwc**(*Pwc*) – The Pwc to sample.**sample_times**(*list**or**tuple**or**np.ndarray**(**1D**,**real**)*) – The times at which you want to sample the Pwc. Must be ordered, contain at least one element, and lie between 0 and the duration of the Pwc. For a sample time $t$ the returned value lies in the half open interval $t_{j-1} < t \leq t_j$, where $t_j$ indicates the boundary of a segment.**name**(*str**or**None**,**optional*) – The name of the node.

### Returns

The values of the Pwc at the given times.

### Return type

### SEE ALSO

`Graph.sample_stf`

: Sample an Stf at given times.

## Notes

For more information on Pwc nodes see the Working with time-dependent functions in Boulder Opal topic.