Linux-AttributeError: module 'Ball._cball' has no attribute 'doubleArray_swiginit'

[daiquanyu]

I successfully install the package in linux, but found the error while running the toy example provided in the code. Besides, I can successfully run the demo in windows.

The original code is as follows:

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import Ball as ball
import numpy as np
import math

np.random.seed(2)

#%% both x, y are numeric vector
n = 50
error = np.random.uniform(-0.3, 0.3, n)
x = np.random.uniform(0, 4*math.pi, n)
y = np.cos(x) + error
a = ball.bcov_test(x, y)

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The original log is as follows:

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Traceback (most recent call last):
File "Ball_test.py", line 19, in
a = ball.bcov_test(x, y)
File "/home/daiquanyu/anaconda3/envs/reco_gpu/lib/python3.6/site-packages/Ball/bcov.py", line 102, in bcov_test
bcov_stat, bcov_pvalue = bcov_test_wrap_c(args[0], args[1], n, num_permutations, distance, num_thread)
File "/home/daiquanyu/anaconda3/envs/reco_gpu/lib/python3.6/site-packages/Ball/wrap_c.py", line 96, in bcov_test_wrap_c
bcov_stat = doubleArray(3)
File "/home/daiquanyu/anaconda3/envs/reco_gpu/lib/python3.6/site-packages/Ball/cball.py", line 69, in init
_cball.doubleArray_swiginit(self, _cball.new_doubleArray(nelements))
AttributeError: module 'Ball._cball' has no attribute 'doubleArray_swiginit'

---

Look forward to your reply. Thanks.

[Mamba413]

I think this problem might come from the setting of SWIG in Linux, and I need some time to fix it. I suggest to use rpy2 (https://rpy2.github.io/doc/v2.9.x/html/introduction.html) to call R command for bcov.test.