Source code for pyrfu.pyrf.start
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# 3rd party import
import numpy as np
import xarray as xr
__author__ = "Louis Richard"
__email__ = "louisr@irfu.se"
__copyright__ = "Copyright 2020-2023"
__license__ = "MIT"
__version__ = "2.4.2"
__status__ = "Prototype"
[docs]def start(inp):
r"""Gives the first time of the time series.
Parameters
----------
inp : xarray.DataArray
Time series.
Returns
-------
out : float
Value of the first time in the desired format.
"""
# Check input type
assert isinstance(inp, xr.DataArray), "inp must be a xarray.DataArray"
# Make sure this is a time series
assert list(inp.dims)[0] == "time", "inp must be a time series"
out = inp.time.data[0].astype(np.int64) * 1e-9
return out