help getting started

[ACatAC]

I am playing around with ts2vg and I am having a hard time with the plotting using igraph.
I try to compute the natural vg for a short time series, but when trying to plot it I get this error:

Traceback (most recent call last):
  File "\anaconda3\envs\DK_01\lib\site-packages\IPython\core\interactiveshell.py", line 3398, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-1-9a1fdcf342e8>", line 1, in <cell line: 1>
    ig.plot(nx_g, target='graph.pdf')
  File "\anaconda3\envs\DK_01\lib\site-packages\igraph\drawing\__init__.py", line 512, in plot
    result.save()
  File "\anaconda3\envs\DK_01\lib\site-packages\igraph\drawing\__init__.py", line 309, in save
    self._ctx.show_page()
igraph.drawing.cairo.MemoryError: out of memory

The file created is corrupted.

Here is my code:

import numpy as np
from ts2vg import NaturalVG
import igraph as ig

import matplotlib.pyplot as plt

# time domain
t = np.linspace(1, 40)
dt = np.diff(t)

# build series
x1 = np.sin(2*np.pi/10*t)
x2 = np.sin(2*np.pi/15*t)

y = x1 + x2

plt.plot(t, y, '.-')
plt.show()

# build HVG
g = NaturalVG()
g.build(y)

nx_g = g.as_igraph()

# plotting
ig.plot(nx_g, target='graph.pdf')

I am using ts2vg 1.0.0, igraph 0.9.11, and pycairo 1.21.0

[CarlosBergillos]

Hi! (and sorry for the late reply)

I ran the same code you provided and got no errors.
This is the result I got:

I am using ts2vg 1.0.0 and igraph 0.10.1.

This seems to be an issue with igraph more than an issue with ts2vg so I don't think I can help you, sorry.