Timeseries Interactive

An interactive time-series plot generated from a TVB TimeSeries datatype.

Usage

#Load the demo data
import numpy
data = numpy.load("demos/demo_data_region_16s_2048Hz.npy")
period = 0.00048828125 #NOTE: Providing period in seconds

#Create a tvb TimeSeries object
import tvb.datatypes.time_series
tsr = tvb.datatypes.time_series.TimeSeriesRegion()
tsr.data = data
tsr.sample_period = period

#Create and launch the interactive visualiser
import tvb.simulator.timeseries_interactive as ts_int
tsi = ts_int.TimeSeriesInteractive(time_series=tsr)
tsi.configure()
tsi.show()

class tvb.simulator.plot.timeseries_interactive.TimeSeriesInteractive(**kwargs)

For generating an interactive time-series figure, given one of TVB’s TimeSeries datatypes to initialise it. The graphical interface for visualising a timeseries provides controls for setting:

• Window length
• Amplitude scaling
• Stepping forward/backward through time.

time_series : tvb.simulator.plot.timeseries_interactive.TimeSeriesInteractive.time_series = Attr(field_type=<class ‘tvb.datatypes.time_series.TimeSeries’>, default=None, required=True)

The TVB TimeSeries datatype to be displayed.

first_n : tvb.simulator.plot.timeseries_interactive.TimeSeriesInteractive.first_n = Int(field_type=<class ‘int’>, default=-1, required=True)

Primarily intended for displaying the first N components of a surface PCA timeseries. Defaults to -1, meaning it’ll display all of ‘space’ (ie, regions or vertices or channels). In other words, for Region or M/EEG timeseries you can ignore this, but, for a surface timeseries it really must be set.

gid : tvb.basic.neotraits._core.HasTraits.gid = Attr(field_type=<class ‘uuid.UUID’>, default=None, required=True)

add_big_step_back_button()

Add a button to step back by 1/4 window_length.

add_big_step_forward_button()

Add a button to step forward by 1/4 window_length.

add_end_button()

Add a button to jump forward to the end of the timeseries.

add_scaling_slider()

Add a slider to allow scaling of the offset of time-series.

add_start_button()

Add a button to jump back to the start of the timeseries.

add_step_back_button()

Add a button to step back by 4 view_steps.

add_step_forward_button()

Add a button to step forward by 4 view_steps.

add_window_length_slider()

Add a slider to allow the time-series window length to be adjusted.

bigstep_back(event=None)

Step the timeview back by 1/4 window length.

bigstep_forward(event=None)

Step the timeview forward by 1/4 window length.

configure()

Seperate configure cause ttraits be busted...

create_figure()

Create the figure and time-series axes.

first_n

Declares an integer This is different from Attr(field_type=int). The former enforces int subtypes This allows all integer types, including numpy ones that can be safely cast to the declared type according to numpy rules

jump_to_end(event=None)

Jump to the end of the timeseries.

jump_to_start(event=None)

Jump to the start of the timeseries.

plot_time_series()

Plot a view on the timeseries.

show()

Generate the interactive time-series figure.

step_back(event=None)

Step the timeview back by a single view step.

step_forward(event=None)

Step the timeview forward by a single view step.

time_series

An Attr declares the following about the attribute it describes: * the type * a default value shared by all instances * if the value might be missing * documentation It will resolve to attributes on the instance.

update_scaling(scaling)

Update timeseries scaling based on the scaling slider value.

update_time_series()

Clear the axes and redraw the time-series.

update_time_view()

Update the time_view when window length is changed.

update_window_length(length)

Update timeseries window length based on the time window slider value.