dcase_util.containers.FeatureContainer

class dcase_util.containers.FeatureContainer(data=None, stats=None, metadata=None, time_resolution=None, processing_chain=None, **kwargs)

Feature container class for a single feature matrix, inherited from DataContainer.

Constructor

Parameters

filenamestr, optional

File path Default value None

datanumpy.ndarray, optional

Data to initialize the container Default value None

statsdict, optional

Statistics of the data Default value None

metadatadict or MetadataContainer, optional

MetadataContainer Default value None

time_resolutionfloat, optional

Time resolution Default value None

processing_chainProcessingChain, optional

Processing chain. Default value None

__init__(data=None, stats=None, metadata=None, time_resolution=None, processing_chain=None, **kwargs)

Constructor

Parameters

filenamestr, optional

File path Default value None

datanumpy.ndarray, optional

Data to initialize the container Default value None

statsdict, optional

Statistics of the data Default value None

metadatadict or MetadataContainer, optional

MetadataContainer Default value None

time_resolutionfloat, optional

Time resolution Default value None

processing_chainProcessingChain, optional

Processing chain. Default value None

Methods

__init__([data, stats, metadata, ...])	Constructor
change_axis([time_axis, data_axis])	Set axis
delimiter([exclude_delimiters])	Use csv.sniffer to guess delimiter for CSV file
detect_file_format([filename])	Detect file format from extension
empty()	Check if file is empty
exists()	Checks that file exists
freeze()	Freeze focus segment, copy segment to be container's data.
get_file_information()	Get file information, filename
get_focused()	Get focus segment from data matrix.
get_frames([frame_ids, vector_ids, frame_hop])	Get frames from data matrix.
is_package([filename])	Determine if the file is compressed package.
load([filename])	Load file
log([level])	Log container content
plot([plot, show_color_bar, figsize, ...])	Visualize data matrix.
push_processing_chain_item(processor_name[, ...])	Push processing chain item
reset_focus()	Reset focus segment
save([filename])	Save file
set_focus([start, stop, duration, ...])	Set focus segment
show([mode, indent, visualize])	Print container content
to_html([indent])	Get container information in a HTML formatted string
to_string([ui, indent])	Get container information in a string
validate_format()	Validate file format

Attributes

T	Transposed data in a data container
bytes	File size in bytes
data	Data matrix
focus_start	Focus segment start
focus_stop	Focus segment stop
frames	Number of data frames
hop_length_seconds
length	Number of data columns
logger	Logger instance
md5	Checksum for file.
shape	Shape of data matrix
stats	Basic statistics of data matrix.
valid_formats	Valid file formats
vector_length	Data vector length