Function dtwPlot

dtw/dtwPlot.py:24–76

Plotting of dynamic time warp results Methods for plotting dynamic time warp alignment objects returned by [dtw()]. **Details** ``dtwPlot`` displays alignment contained in ``dtw`` objects. Various plotting styles are available, passing strings to the ``type`` argument (may be abbreviated): - ``

(x, type="alignment", **kwargs)

import numpy

def dtwPlot(x, type="alignment", **kwargs):
    # IMPORT_RDOCSTRING plot.dtw
    """Plotting of dynamic time warp results

Methods for plotting dynamic time warp alignment objects returned by
[dtw()].

**Details**

``dtwPlot`` displays alignment contained in ``dtw`` objects.

Various plotting styles are available, passing strings to the ``type``
argument (may be abbreviated):

- ``alignment`` plots the warping curve in ``d``;
- ``twoway`` plots a point-by-point comparison, with matching lines; see
  [dtwPlotTwoWay()];
- ``threeway`` vis-a-vis inspection of the timeseries and their warping
  curve; see [dtwPlotThreeWay()];
- ``density`` displays the cumulative cost landscape with the warping
  path overimposed; see [dtwPlotDensity()]

Additional parameters are passed to the plotting functions: use with
care.

Parameters
----------
x,d : 
    `dtw` object, usually result of call to [dtw()]
xlab : 
    label for the query axis
ylab : 
    label for the reference axis
type : 
    general style for the plot, see below
plot_type : 
    type of line to be drawn, used as the `type` argument in the underlying `plot` call
... : 
    additional arguments, passed to plotting functions

"""
    # ENDIMPORT

    if type == "alignment":
        return dtwPlotAlignment(x, **kwargs)
    elif type == "twoway":
        return dtwPlotTwoWay(x, **kwargs)
    elif type == "threeway":
        return dtwPlotThreeWay(x, **kwargs)
    elif type == "density":
        return dtwPlotDensity(x, **kwargs)
    else:
        raise ValueError("Unknown plot type: " + type)


def dtwPlotAlignment(d, xlab="Query index", ylab="Reference index", **kwargs):