Dfs0

Dfs0(self, filename)

Class for reading/writing dfs0 files.

Attributes

Name	Description
items	List of items.
n_items	Number of items.
n_timesteps	Number of time steps.
start_time	File start time.
time	File all datetimes.
timestep	Time step size in seconds.

Methods

Name	Description
from_dataframe	Create a dfs0 from a pandas Dataframe.
read	Read data from a dfs0 file.
to_dataframe	Read data from the dfs0 file and return a Pandas DataFrame.

from_dataframe

Dfs0.from_dataframe(df, filename, itemtype=None, unit=None, items=None)

Create a dfs0 from a pandas Dataframe.

Parameters

Name	Type	Description	Default
df	pd.DataFrame	Dataframe with data	required
filename	str	filename to write output	required
itemtype	EUMType | None	Same type for all items	None
unit	EUMUnit | None	Same unit for all items	None
items	Sequence[ItemInfo] | None	Different types, units for each items	None

read

Dfs0.read(items=None, time=None, **kwargs)

Read data from a dfs0 file.

Parameters

Name	Type	Description	Default
items	str | int | Sequence[str | int] | None	Read only selected items, by number (0-based), or by name	None
time	int | str | slice | None	Read only selected time steps, by default None (=all)	None
**kwargs	Any	Additional keyword arguments are ignored	{}

Returns

Name	Type	Description
	Dataset	A Dataset with data dimensions [t]

to_dataframe

Dfs0.to_dataframe(unit_in_name=False, round_time='ms')

Read data from the dfs0 file and return a Pandas DataFrame.

Parameters

Name	Type	Description	Default
unit_in_name	bool	include unit in column name, default False	False
round_time	str	round time to avoid problem with floating point inaccurcy, set to False to avoid rounding	'ms'

Returns

Name	Type	Description
	pd.DataFrame