Observations#

class gammapy.data.Observations(observations=None)[source]#

Bases: collections.abc.MutableSequence

Container class that holds a list of observations.

Parameters
observationslist

A list of Observation

Attributes Summary

ids

List of obs IDs (list)

Methods Summary

append(value)

S.append(value) -- append value to the end of the sequence

clear()

count(value)

extend(values)

S.extend(iterable) -- extend sequence by appending elements from the iterable

group_by_label(labels)

Split obsevations in multiple groups of observations

index(value, [start, [stop]])

Raises ValueError if the value is not present.

insert(idx, obs)

S.insert(index, value) -- insert value before index

pop([index])

Raise IndexError if list is empty or index is out of range.

remove(value)

S.remove(value) -- remove first occurrence of value.

reverse()

S.reverse() -- reverse IN PLACE

select_time(time_intervals)

Select a time interval of the observations.

Attributes Documentation

ids#

List of obs IDs (list)

Methods Documentation

append(value)#

S.append(value) – append value to the end of the sequence

clear() → None -- remove all items from S#
count(value) → integer -- return number of occurrences of value#
extend(values)#

S.extend(iterable) – extend sequence by appending elements from the iterable

group_by_label(labels)[source]#

Split obsevations in multiple groups of observations

Parameters
labelsarray

Array of group labels

Returns
obs_clustersdict of Observations

dict of Observations instance, one instance for each group.

index(value[, start[, stop]]) → integer -- return first index of value.[source]#

Raises ValueError if the value is not present.

Supporting start and stop arguments is optional, but recommended.

insert(idx, obs)[source]#

S.insert(index, value) – insert value before index

pop([index]) → item -- remove and return item at index (default last).#

Raise IndexError if list is empty or index is out of range.

remove(value)#

S.remove(value) – remove first occurrence of value. Raise ValueError if the value is not present.

reverse()#

S.reverse() – reverse IN PLACE

select_time(time_intervals)[source]#

Select a time interval of the observations.

Parameters
time_intervalsastropy.time.Time or list of astropy.time.Time

list of Start and stop time of the time intervals or one Time interval

Returns
new_observationsObservations

A new Observations instance of the specified time intervals