def test_predict_bvals():
[actual1, actual2, predicted11,
predicted12, predicted22, predicted21] = pn.predict_bvals(data_pv,
bvals_pv,
bvecs_pv,
mask_pv,
ad, rd, 0, 2,
n = 10,
solver = "nnls",
mode = "kfold_xval")
rmse00 = np.sqrt(np.mean((actual1 - predicted11)**2))
rmse02 = np.sqrt(np.mean((actual2 - predicted12)**2))
rmse22 = np.sqrt(np.mean((actual2 - predicted22)**2))
rmse20 = np.sqrt(np.mean((actual1 - predicted21)**2))
npt.assert_(rmse00<300)
npt.assert_(rmse02<300)
npt.assert_(rmse22<300)
npt.assert_(rmse20<300)
bvals = np.loadtxt(os.path.join(data_path, "bvals"))
bvecs = np.loadtxt(os.path.join(data_path, "bvecs"))
low = i*2000
# Make sure not to go over the edge of the mask:
high = np.min([(i+1) * 2000, int(np.sum(wm_data))])
# Preserve memory by getting rid of this data:
del wm_data
# Now set the mask:
mask = np.zeros(wm_data_file.shape)
mask[wm_idx[0][low:high], wm_idx[1][low:high], wm_idx[2][low:high]] = 1
# Predict 10% (n = 10)
ad = {1000:1.6386920952169737, 2000:1.2919249903637751, 3000:0.99962593218241236}
rd = {1000:0.33450124887561905, 2000:0.28377379537043729, 3000:0.24611723207420028}
[actual1, actual2, predicted11,
predicted13, predicted33, predicted31] = pn.predict_bvals(data, bvals, bvecs,
mask, ad, rd, b_idx1,
b_idx2, n = 10, mode = "kfold_xval")
np.save("/hsgs/nobackup/klchan13/predict_bvals11_%d.npy"%i, predicted11)
np.save("/hsgs/nobackup/klchan13/predict_bvals13_%d.npy"%i, predicted13)
np.save("/hsgs/nobackup/klchan13/predict_bvals33_%d.npy"%i, predicted33)
np.save("/hsgs/nobackup/klchan13/predict_bvals31_%d.npy"%i, predicted31)
t2 = time.time()
print "This program took %4.2f minutes to run."%((t2 - t1)/60.)
# Predict 10% (n = 10)
ad = {
1000: 1.6386920952169737,
2000: 1.2919249903637751,
3000: 0.99962593218241236
}
rd = {
1000: 0.33450124887561905,
2000: 0.28377379537043729,
3000: 0.24611723207420028
}
[actual1, actual2, predicted11, predicted13, predicted33,
predicted31] = pn.predict_bvals(data,
bvals,
bvecs,
mask,
ad,
rd,
b_idx1,
b_idx2,
n=10,
mode="kfold_xval")
np.save("/hsgs/nobackup/klchan13/predict_bvals11_%d.npy" % i, predicted11)
np.save("/hsgs/nobackup/klchan13/predict_bvals13_%d.npy" % i, predicted13)
np.save("/hsgs/nobackup/klchan13/predict_bvals33_%d.npy" % i, predicted33)
np.save("/hsgs/nobackup/klchan13/predict_bvals31_%d.npy" % i, predicted31)
t2 = time.time()
print "This program took %4.2f minutes to run." % ((t2 - t1) / 60.)