def test_building_does_not_change_structure(self):
self.sm1.load_sampled_elems()
self.sm2.load_sampled_elems()
self.sm1.traverse_and_build()
print("RMSD", ftmsim.cg_rmsd(self.sm1.bg, self.sm2.bg))
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm1.bg, self.sm2.bg), 0)
assertModelsEqual(self.sm1, self.sm2, 12) #Note: Coords do change!!!
def test_cg_rmsd2(self):
cg1 = ftmc.CoarseGrainRNA.from_bg_file(
'test/forgi/threedee/data/1GID_A.cg')
self.assertAlmostEqual(ftme.cg_rmsd(cg1, cg1), 0)
cg2 = ftmc.CoarseGrainRNA.from_bg_file(
'test/forgi/threedee/data/1GID_A_sampled.cg')
self.assertAlmostEqual(ftme.cg_rmsd(cg1, cg2), 25.563376828137844)
def test_building_does_not_change_structure(self):
self.sm1.load_sampled_elems()
self.sm2.load_sampled_elems()
self.sm1.new_traverse_and_build()
print("RMSD", ftmsim.cg_rmsd(self.sm1.bg, self.sm2.bg))
assertModelsEqual(self.sm1, self.sm2, 12) #Note: Coords do change!!!
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm1.bg, self.sm2.bg),
0,
places=6)
def test_rotate_keeps_RMSD_zero(self):
cg1_rot = copy.deepcopy(self.cg1)
cg1_rot.rotate(30, unit="degrees")
self.assertAlmostEqual(
ftme.cg_rmsd(self.cg1, cg1_rot), 0
) #This currently uses virtual atoms, thus takes twists into account.
print(self.cg2.coords)
cg2_rot = copy.deepcopy(self.cg2)
cg2_rot.rotate(45, unit="degrees")
self.assertAlmostEqual(ftme.cg_rmsd(self.cg2, cg2_rot), 0)
def test_HDE_energy(self):
open_main, open_stats, stdout, stderr = self.runErnwin(
"python ernwin_new.py test/fess/data/1GID_A-structure1.coord "
"-i 200 --energy HDE --seed 1 --step-save 200 "
"--ref-img test/fess/data/1GID_A-structure2.coord.dpi15.width120.4.png --scale 120")
# Although we start from structure1, our result should stronger resemble structure2,
# Because we used distances from structure2
orig_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure1.coord")
target_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure2.coord")
new_cg = self.getSavedFile(open_stats, "1GID_A/step000200.coord")
self.assertLess(ftmsim.cg_rmsd(new_cg, target_cg), ftmsim.cg_rmsd(new_cg, orig_cg))
def test_new_traverse_and_build_steps_doesnt_build_after(self):
self.sm.load_sampled_elems()
#We need to traverse_and_build at least once from the start!
self.sm.new_traverse_and_build()
self.sm.elem_defs["i6"] = self.stat_source.sample_for(self.cg, "i6")
self.sm.new_traverse_and_build(max_steps=2)
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm.bg, self.cg_copy),
0,
places=6)
self.sm.new_traverse_and_build()
self.assertGreater(ftmsim.cg_rmsd(self.sm.bg, self.cg_copy), 0)
def test_FPP_energy(self):
open_main, open_stats, stdout, stderr = self.runErnwin(
"python ernwin_new.py test/fess/data/1GID_A-structure1.coord "
"-i 200 --energy FPP --seed 1 --step-save 200 --scale 120 "
"--fpp-landmarks 21,7,12:1,10,7:137,8,4:50,7,2 --ref-img test/fess/data/1GID_A-structure2.forFPP.png")
# Although we start from structure1, our result should stronger resemble structure2,
# Because we used distances from structure2
orig_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure1.coord")
target_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure2.coord")
new_cg = self.getSavedFile(open_stats, "1GID_A/step000200.coord")
self.assertLess(ftmsim.cg_rmsd(new_cg, target_cg), ftmsim.cg_rmsd(new_cg, orig_cg))
def test_PRO_energy(self):
# We use distances from a projection of 1GID_A_structure2.coord,
# proj.dir (-0.147,-0.311,-0.876)
open_main, open_stats, stdout, stderr = self.runErnwin(
"python ernwin_new.py test/fess/data/1GID_A-structure1.coord "
"-i 500 --energy PRO --seed 1 --step-save 500 --projected-dist h0,h1,31.64:"
"h0,h2,13.56:h0,s3,58.44:h1,h2,30.30:h1,s3,54.27:h2,s3,44.95")
# Although we start from structure1, our result should stronger resemble structure2,
# Because we used distances from structure2
orig_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure1.coord")
target_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure2.coord")
new_cg = self.getSavedFile(open_stats, "1GID_A/step000500.coord")
self.assertLess(ftmsim.cg_rmsd(new_cg, target_cg), ftmsim.cg_rmsd(new_cg, orig_cg))
def test_HDE_energy(self):
open_main, open_stats, stdout, stderr = self.runErnwin(
"python ernwin_new.py test/fess/data/1GID_A-structure1.coord "
"-i 200 --energy HDE --seed 1 --step-save 200 "
"--ref-img test/fess/data/1GID_A-structure2.coord.dpi15.width120.4.png --scale 120"
)
# Although we start from structure1, our result should stronger resemble structure2,
# Because we used distances from structure2
orig_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure1.coord")
target_cg = ftmc.CoarseGrainRNA(
"test/fess/data/1GID_A-structure2.coord")
new_cg = self.getSavedFile(open_stats, "1GID_A/step000200.coord")
self.assertLess(ftmsim.cg_rmsd(new_cg, target_cg),
ftmsim.cg_rmsd(new_cg, orig_cg))
def test_PRO_energy(self):
# We use distances from a projection of 1GID_A_structure2.coord,
# proj.dir (-0.147,-0.311,-0.876)
open_main, open_stats, stdout, stderr = self.runErnwin(
"python ernwin_new.py test/fess/data/1GID_A-structure1.coord "
"-i 500 --energy 50PRO --seed 1 --step-save 500 --projected-dist h0,h1,31.64:"
"h0,h2,13.56:h0,s3,58.44:h1,h2,30.30:h1,s3,54.27:h2,s3,44.95")
# Although we start from structure1, our result should stronger resemble structure2,
# Because we used distances from structure2
orig_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure1.coord")
target_cg = ftmc.CoarseGrainRNA(
"test/fess/data/1GID_A-structure2.coord")
new_cg = self.getSavedFile(open_stats, "1GID_A/step000500.coord")
self.assertLess(ftmsim.cg_rmsd(new_cg, target_cg),
ftmsim.cg_rmsd(new_cg, orig_cg))
def test_FPP_energy(self):
open_main, open_stats, stdout, stderr = self.runErnwin(
"python ernwin_new.py test/fess/data/1GID_A-structure1.coord "
"-i 200 --energy FPP --seed 1 --step-save 200 --scale 120 "
"--fpp-landmarks 21,7,12:1,10,7:137,8,4:50,7,2 --ref-img test/fess/data/1GID_A-structure2.forFPP.png"
)
# Although we start from structure1, our result should stronger resemble structure2,
# Because we used distances from structure2
orig_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure1.coord")
target_cg = ftmc.CoarseGrainRNA(
"test/fess/data/1GID_A-structure2.coord")
new_cg = self.getSavedFile(open_stats, "1GID_A/step000200.coord")
self.assertLess(ftmsim.cg_rmsd(new_cg, target_cg),
ftmsim.cg_rmsd(new_cg, orig_cg))
def test_start_not_from_scratch(self):
open_main, open_stats, stdout, stderr = self.runErnwin(
"python ernwin_new.py test/fess/data/1GID_A-structure1.coord -i 1 "
"--step-save 1 --seed 1")
orig_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure1.coord")
new_cg = self.getSavedFile(open_stats, "1GID_A/step000001.coord")
self.assertLess(ftmsim.cg_rmsd(orig_cg, new_cg), 5)
def main():
usage = """
python calculate_mcc.py struct1.cg struct2.cg
"""
num_args= 0
parser = OptionParser(usage=usage)
#parser.add_option('-o', '--options', dest='some_option', default='yo', help="Place holder for a real option", type='str')
#parser.add_option('-u', '--useless', dest='uselesss', default=False, action='store_true', help='Another useless option')
(options, args) = parser.parse_args()
if len(args) < num_args:
parser.print_help()
sys.exit(1)
cg1 = ftmc.CoarseGrainRNA(args[0])
cg2 = ftmc.CoarseGrainRNA(args[1])
confusion_matrix = ftme.confusion_matrix(cg1, cg2)
print "confusion_matrix:", confusion_matrix
print "mcc:", ftme.mcc(confusion_matrix)
print "rmsd:", ftme.cg_rmsd(cg1, cg2)
def main(args):
with fuc.hide_traceback():
cg1, cg2 = fuc.cgs_from_args(
args, rna_type="3d", enable_logging=True)
if not (args.acc or args.rmsd or args.pdb_rmsd):
showall = True
else:
showall = False
if showall or args.acc:
if cg1.defines != cg2.defines:
if args.acc:
print(
"Cannot compare two 3d structures that do not correspond to the same RNA.")
sys.exit(1)
else:
adj = ftms.AdjacencyCorrelation(cg1)
print("ACC:\t{:.3f}".format(ftms.mcc(adj.evaluate(cg2))))
if showall or args.rmsd:
print("RMSD:\t{:.3f}".format(ftms.cg_rmsd(cg1, cg2)))
if showall or args.pdb_rmsd:
if not pdb_rmsd(cg1, cg2):
# If --pdb-rmsd was not given, just don't print it.
# If it was given, we exit with non-zero exit status.
if args.pdb_rmsd:
print(
"Cannot calculate PDB-RMSD: The two files do not contain the same chains.")
sys.exit(1)
def test_start_not_from_scratch(self):
open_main, open_stats, stdout, stderr = self.runErnwin(
"python ernwin_new.py test/fess/data/1GID_A-structure1.coord -i 1 "
"--step-save 1 --seed 1")
orig_cg = ftmc.CoarseGrainRNA("test/fess/data/1GID_A-structure1.coord")
new_cg = self.getSavedFile(open_stats, "1GID_A/step000001.coord")
self.assertLess(ftmsim.cg_rmsd(orig_cg, new_cg), 5)
def test_cg_rmsd3(self):
cg1 = ftmc.CoarseGrainRNA('test/forgi/threedee/data/1GID_A.cg')
cg2 = ftmc.CoarseGrainRNA('test/forgi/threedee/data/1GID_A.cg')
cg2.coords.rotate(ftuv.rotation_matrix([1.,2.,3.], 22))
cg2.twists.rotate(ftuv.rotation_matrix([1.,2.,3.], 22))
self.assertAlmostEqual(ftme.cg_rmsd(cg1,cg2), 0)
def test_cg_rmsd3(self):
cg1 = ftmc.CoarseGrainRNA.from_bg_file(
'test/forgi/threedee/data/1GID_A.cg')
cg2 = ftmc.CoarseGrainRNA.from_bg_file(
'test/forgi/threedee/data/1GID_A.cg')
cg2.rotate( 0.75)
self.assertLess(ftme.cg_rmsd(cg1, cg2), 10**-6)
def test_new_traverse_and_build_start_doesnt_build_before_start(self):
self.sm.load_sampled_elems()
#We need to traverse_and_build at least once from the start!
self.sm.new_traverse_and_build()
#Change structure at s0
self.sm.elem_defs["i8"] = self.stat_source.sample_for(self.cg, "i8")
#Build only part that did not change
self.sm.new_traverse_and_build(start="s1")
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm.bg, self.cg_copy),
0,
places=6)
#Now build everything including the changed s0
self.sm.new_traverse_and_build()
self.assertGreater(ftmsim.cg_rmsd(self.sm.bg, self.cg_copy),
9 * 10**-6)
def test_cg_rmsd(self):
cg1 = ftmc.CoarseGrainRNA('test/forgi/threedee/data/1GID_A.cg')
cg2 = ftmc.CoarseGrainRNA('test/forgi/threedee/data/1GID_A_sampled.cg')
residues1 = ftug.bg_virtual_residues(cg1)
residues2 = ftug.bg_virtual_residues(cg2)
self.assertAlmostEqual(ftme.rmsd(residues1, residues2),
ftme.cg_rmsd(cg1, cg2))
def main(args):
with fuc.hide_traceback():
cg1, cg2 = fuc.cgs_from_args(args, rna_type="3d", enable_logging=True)
if not (args.acc or args.rmsd or args.pdb_rmsd):
showall = True
else:
showall = False
if showall or args.acc:
if cg1.defines != cg2.defines:
if args.acc:
print(
"Cannot compare two 3d structures that do not correspond to the same RNA."
)
sys.exit(1)
else:
adj = ftms.AdjacencyCorrelation(cg1)
print("ACC:\t{:.3f}".format(ftms.mcc(adj.evaluate(cg2))))
if showall or args.rmsd:
print("RMSD:\t{:.3f}".format(ftms.cg_rmsd(cg1, cg2)))
if showall or args.pdb_rmsd:
if not pdb_rmsd(cg1, cg2):
# If --pdb-rmsd was not given, just don't print it.
# If it was given, we exit with non-zero exit status.
if args.pdb_rmsd:
print(
"Cannot calculate PDB-RMSD: The two files do not contain the same chains."
)
sys.exit(1)
def test_new_traverse_and_build_steps_really_builds(self):
self.sm.load_sampled_elems()
#We need to traverse_and_build at least once from the start!
self.sm.new_traverse_and_build()
print(self.sm.bg.traverse_graph())
self.sm.elem_defs["i7"] = self.stat_source.sample_for(self.cg, "i7")
self.sm.new_traverse_and_build(max_steps=5)
self.assertGreater(ftmsim.cg_rmsd(self.sm.bg, self.cg_copy), 0)
def test_extracting_stats_from_sm_after_building(self):
self.sm1.load_sampled_elems()
self.sm1.new_traverse_and_build()
self.sm2.elem_defs = {}
for d in self.sm1.elem_defs:
self.sm2.elem_defs[d] = self.sm1.elem_defs[d]
self.sm2.new_traverse_and_build()
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm1.bg, self.sm2.bg), 0)
def test_extracting_stats_from_sm_after_building(self):
self.sm1.load_sampled_elems()
self.sm1.traverse_and_build()
self.sm2.elem_defs={}
for d in self.sm1.elem_defs:
self.sm2.elem_defs[d] = self.sm1.elem_defs[d]
self.sm2.traverse_and_build()
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm1.bg, self.sm2.bg), 0)
assertModelsEqual(self.sm1, self.sm2, 12)
def test_new_traverse_and_build(self):
self.sm.load_sampled_elems()
self.sm.new_traverse_and_build()
for k in self.cg_copy.defines.keys():
log.info("k: %s file: %s, built %s", k,
ftuv.magnitude(self.cg_copy.coords.get_direction(k)),
ftuv.magnitude(self.sm.bg.coords.get_direction(k)))
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm.bg, self.cg_copy),
0,
places=6)
def test_rotate_keeps_RMSD_zero(self):
cg1_rot = copy.deepcopy(self.cg1)
cg1_rot.rotate(30, unit="degrees")
# This currently uses virtual atoms, thus takes twists into account.
self.assertLess(ftme.cg_rmsd(self.cg1, cg1_rot), 10**-6)
cg2_rot = copy.deepcopy(self.cg2)
cg2_rot.rotate(45, unit="degrees")
a, b = self.cg2.get_ordered_virtual_residue_poss(True)
log.warning("------------------------")
c, d = cg2_rot.get_ordered_virtual_residue_poss(True)
c2 = np.dot(c, ftuv.rotation_matrix("x", math.radians(-45)).T)
log.warning("==================================")
for i, coord in enumerate(a):
if any(abs(coord - c2[i]) > 10**-4):
log.warning("%s %s %s %s", coord, b[i], c2[i], d[i])
self.assertLess(ftme.cg_rmsd(self.cg2, cg2_rot), 10**-6)
def test_new_traverse_and_build_start_really_builds(self):
self.sm.load_sampled_elems()
#We need to traverse_and_build at least once from the start!
self.sm.new_traverse_and_build()
#Change structure at s6
self.sm.elem_defs["i6"] = self.stat_source.sample_for(self.cg, "i6")
#Build part that did change
self.sm.new_traverse_and_build(start="s2")
self.assertGreater(ftmsim.cg_rmsd(self.sm.bg, self.cg_copy), 0)
def test_rotate_keeps_RMSD_zero(self):
cg1_rot = copy.deepcopy(self.cg1)
cg1_rot.rotate(30, unit="degrees")
# This currently uses virtual atoms, thus takes twists into account.
self.assertLess(ftme.cg_rmsd(self.cg1, cg1_rot), 10**-6)
cg2_rot = copy.deepcopy(self.cg2)
cg2_rot.rotate(45, unit="degrees")
a,b = self.cg2.get_ordered_virtual_residue_poss(True)
log.warning("------------------------")
c,d = cg2_rot.get_ordered_virtual_residue_poss(True)
c2 = np.dot(c, ftuv.rotation_matrix("x", math.radians(-45)).T)
log.warning("==================================")
for i, coord in enumerate(a):
if any(abs(coord-c2[i])>10**-4):
log.warning("%s %s %s %s",coord, b[i], c2[i], d[i])
self.assertLess(ftme.cg_rmsd(self.cg2, cg2_rot), 10**-6)
def test_cg_rmsd(self):
cg1 = ftmc.CoarseGrainRNA.from_bg_file(
'test/forgi/threedee/data/1GID_A.cg')
cg2 = ftmc.CoarseGrainRNA.from_bg_file(
'test/forgi/threedee/data/1GID_A_sampled.cg')
cg1.add_all_virtual_residues()
cg2.add_all_virtual_residues()
residues1 = cg1.get_ordered_virtual_residue_poss()
residues2 = cg2.get_ordered_virtual_residue_poss()
self.assertAlmostEqual(
ftme.rmsd(residues1, residues2), ftme.cg_rmsd(cg1, cg2))
def test_coords_from_direction_with_pseudoknot(self):
#This tests the case where the link is inserted from reverse direction.
cg = ftmc.CoarseGrainRNA('test/forgi/threedee/data/3D0U_A.cg')
cg_old = copy.deepcopy(cg)
coords = cg.get_coordinates_array()
directions = cg.coords_to_directions()
cg.coords.clear()
cg.coords_from_directions(directions)
self.assertAlmostEqual(ftme.cg_rmsd(cg, cg_old), 0)
new_coords = cg.get_coordinates_array()
offset = (coords - new_coords)
assert np.allclose(offset, offset[0])
def test_save_and_load_does_not_change_coords(self):
self.sm1.load_sampled_elems()
self.sm2.load_sampled_elems()
self.sm2.traverse_and_build()
cg2_str = self.sm2.bg.to_cg_string()
bg_loaded=ftmc.CoarseGrainRNA()
bg_loaded.from_cg_string(cg2_str)
sm2_reloaded = fbm.SpatialModel( bg_loaded )
sm2_reloaded.load_sampled_elems()
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm2.bg, sm2_reloaded.bg), 0)
assertModelsEqual(self.sm2, sm2_reloaded, 12)
assertModelsEqual(self.sm1, sm2_reloaded, 12)
def test_coords_from_direction(self):
cg = ftmc.CoarseGrainRNA('test/forgi/threedee/data/1I9V_noPK.cg')
cg_old = copy.deepcopy(cg)
coords = cg.get_coordinates_array()
directions = coords[1::2] - coords[0::2]
cg.coords.clear()
cg.coords_from_directions(directions)
self.assertAlmostEqual(ftme.cg_rmsd(cg, cg_old),
0) #This only looks at stems
# The coordinates should be the same as before except for a constant offset
new_coords = cg.get_coordinates_array()
offset = (coords - new_coords)
assert np.allclose(offset, offset[0])
def test_save_and_load_does_not_change_coords(self):
self.sm1.load_sampled_elems()
self.sm2.load_sampled_elems()
self.sm2.new_traverse_and_build()
cg2_str = self.sm2.bg.to_cg_string()
bg_loaded = ftmc.CoarseGrainRNA.from_bg_file(cg2_str)
sm2_reloaded = fbm.SpatialModel(bg_loaded)
sm2_reloaded.load_sampled_elems()
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm2.bg, sm2_reloaded.bg),
0,
places=6)
#assertModelsEqual(self.sm2, sm2_reloaded, 12)
assertModelsEqual(self.sm1, sm2_reloaded, 12)
def test_multiple_chain_to_cg(self):
cg, = ftmc.CoarseGrainRNA.from_pdb(
'test/forgi/threedee/data/4GV9.pdb', load_chains=None)
log.debug("======= FIRST IS LOADED =========")
cg_str = cg.to_cg_string()
log.debug("\n" + cg_str)
print(cg_str)
cg2 = ftmc.CoarseGrainRNA.from_bg_string(cg_str)
self.assertEqual(cg.defines, cg2.defines)
self.assertLess(ftme.cg_rmsd(cg, cg2), 10**-6)
self.assertEqual(cg.backbone_breaks_after, cg2.backbone_breaks_after)
cg, = ftmc.CoarseGrainRNA.from_pdb(
'test/forgi/threedee/data/3CQS.pdb', load_chains=None)
cg.log(logging.WARNING)
cg_str = cg.to_cg_string()
cg2 = ftmc.CoarseGrainRNA.from_bg_string(cg_str)
self.assertEqual(cg.defines, cg2.defines)
# This only looks at stems
self.assertLess(ftme.cg_rmsd(cg, cg2), 10**-6)
self.assertEqual(cg.backbone_breaks_after, cg2.backbone_breaks_after)
def test_multiple_chain_to_cg(self):
cg, = ftmc.CoarseGrainRNA.from_pdb('test/forgi/threedee/data/4GV9.pdb',
load_chains=None)
log.debug("======= FIRST IS LOADED =========")
cg_str = cg.to_cg_string()
log.debug("\n" + cg_str)
print(cg_str)
cg2 = ftmc.CoarseGrainRNA.from_bg_string(cg_str)
self.assertEqual(cg.defines, cg2.defines)
self.assertLess(ftme.cg_rmsd(cg, cg2), 10**-6)
self.assertEqual(cg.backbone_breaks_after, cg2.backbone_breaks_after)
cg, = ftmc.CoarseGrainRNA.from_pdb('test/forgi/threedee/data/3CQS.pdb',
load_chains=None)
cg.log(logging.WARNING)
cg_str = cg.to_cg_string()
cg2 = ftmc.CoarseGrainRNA.from_bg_string(cg_str)
self.assertEqual(cg.defines, cg2.defines)
# This only looks at stems
self.assertLess(ftme.cg_rmsd(cg, cg2), 10**-6)
self.assertEqual(cg.backbone_breaks_after, cg2.backbone_breaks_after)
def test_extracting_stats_from_cg_after_building(self):
self.sm1.load_sampled_elems()
self.sm1.new_traverse_and_build()
self.sm2.elem_defs = {}
cg1 = self.sm1.bg
for d in cg1.defines:
stats = cg1.get_stats(d)
self.sm2.elem_defs[d] = stats[0]
self.sm2.new_traverse_and_build()
assertModelsEqual(self.sm1,
self.sm2,
12,
ignore_keys=["sampled", "elem_defs"])
self.assertAlmostEqual(ftmsim.cg_rmsd(self.sm1.bg, self.sm2.bg), 0)
def main(args):
if len(args.compareTo)==1:
cg1 = ftmc.CoarseGrainRNA(args.reference[0])
cg2 = ftmc.CoarseGrainRNA(args.compareTo[0])
print (ftms.cg_rmsd(cg1, cg2))
else:
print ("{:15}\t{:6}\t{:6}\t{:6}".format("filename","RMSD", "dRMSD", "ACC"))
ref_cg = ftmc.CoarseGrainRNA(args.reference[0])
reference = ref_cg.get_ordered_virtual_residue_poss()
acc_calc = ftms.AdjacencyCorrelation(ref_cg)
for filename in args.compareTo:
cg=ftmc.CoarseGrainRNA(filename)
curr_vress=cg.get_ordered_virtual_residue_poss()
rmsd = ftur.rmsd(reference, curr_vress)
drmsd = ftur.drmsd(reference, curr_vress)
acc = ftms.mcc(acc_calc.evaluate(cg))
print ("{:15}\t{:6.3f}\t{:6.3f}\t{:6.3f}".format(filename[-15:], rmsd, drmsd, acc))
def test_coords_from_direction_with_pseudoknot(self):
# This tests the case where the link is inserted from reverse direction.
cg = ftmc.CoarseGrainRNA.from_bg_file(
'test/forgi/threedee/data/3D0U_A.cg')
cg_old = copy.deepcopy(cg)
coords = cg.get_coordinates_array()
directions = cg.coords_to_directions()
cg._init_coords()
cg.twists = cg_old.twists
log.info("len(coords):{}, len(directions):{}, len(defines):{}".format(
len(coords), len(directions), len(cg.defines)))
cg.coords_from_directions(directions)
self.assertLess(ftme.cg_rmsd(cg, cg_old), 10**-6)
new_coords = cg.get_coordinates_array()
offset = (coords - new_coords)
assert np.allclose(offset, offset[0])
def test_coords_from_direction_with_pseudoknot(self):
# This tests the case where the link is inserted from reverse direction.
cg = ftmc.CoarseGrainRNA.from_bg_file(
'test/forgi/threedee/data/3D0U_A.cg')
cg_old = copy.deepcopy(cg)
coords = cg.get_coordinates_array()
directions = cg.coords_to_directions()
cg._init_coords()
cg.twists = cg_old.twists
log.info("len(coords):{}, len(directions):{}, len(defines):{}".format(
len(coords), len(directions), len(cg.defines)))
cg.coords_from_directions(directions)
self.assertLess(ftme.cg_rmsd(cg, cg_old), 10**-6)
new_coords = cg.get_coordinates_array()
offset = (coords - new_coords)
assert np.allclose(offset, offset[0])
def main(args):
if len(args.compareTo) == 1:
cg1 = ftmc.CoarseGrainRNA(args.reference[0])
cg2 = ftmc.CoarseGrainRNA(args.compareTo[0])
print(ftms.cg_rmsd(cg1, cg2))
else:
print("{:15}\t{:6}\t{:6}\t{:6}".format("filename", "RMSD", "dRMSD",
"ACC"))
ref_cg = ftmc.CoarseGrainRNA(args.reference[0])
reference = ref_cg.get_ordered_virtual_residue_poss()
acc_calc = ftms.AdjacencyCorrelation(ref_cg)
for filename in args.compareTo:
cg = ftmc.CoarseGrainRNA(filename)
curr_vress = cg.get_ordered_virtual_residue_poss()
rmsd = ftur.rmsd(reference, curr_vress)
drmsd = ftur.drmsd(reference, curr_vress)
acc = ftms.mcc(acc_calc.evaluate(cg))
print("{:15}\t{:6.3f}\t{:6.3f}\t{:6.3f}".format(
filename[-15:], rmsd, drmsd, acc))
def main():
usage = """
python calculate_mcc.py struct1.cg struct2.cg
"""
num_args = 0
parser = OptionParser(usage=usage)
#parser.add_option('-o', '--options', dest='some_option', default='yo', help="Place holder for a real option", type='str')
#parser.add_option('-u', '--useless', dest='uselesss', default=False, action='store_true', help='Another useless option')
(options, args) = parser.parse_args()
if len(args) < num_args:
parser.print_help()
sys.exit(1)
cg1 = ftmc.CoarseGrainRNA(args[0])
cg2 = ftmc.CoarseGrainRNA(args[1])
confusion_matrix = ftme.confusion_matrix(cg1, cg2)
print "confusion_matrix:", confusion_matrix
print "mcc:", ftme.mcc(confusion_matrix)
print "rmsd:", ftme.cg_rmsd(cg1, cg2)
def main():
usage = """
python cg_to_fornac_html.py file1.cg file2.cg
Convert coarse grain files to html files using fornac
to display a 2D version of the structure.
"""
num_args= 1
parser = OptionParser(usage=usage)
parser.add_option('-d', '--distance', dest='distance', default=25, help="Draw links between elements that are within a certain distance from each other", type='float')
parser.add_option('-b', '--bp-distance', dest='bp_distance', default=16, help="Draw links only between nucleotides which are so many nucleotides apart", type='int')
parser.add_option('-s', '--sort-by', dest='sort_by', default='mcc', help="What to sort by (options: mcc, pca)", type='string')
parser.add_option('-n', '--names', dest='names', default=False, action='store_true', help='Add the name of the structure to the display')
(options, args) = parser.parse_args()
if len(args) < num_args:
parser.print_help()
sys.exit(1)
structs = []
pair_bitmaps = []
cgs = []
all_links = []
mccs = []
cm=None
for filename in args:
cg = ftmc.CoarseGrainRNA(filename)
cgs += [cg]
if not cm:
cm=ftme.AdjacencyCorrelation(cg)
(links, pair_bitmap) = extract_extra_links(cg, options.distance, options.bp_distance,
correct_links = None if len(all_links) == 0 else all_links[0])
all_links += [links]
pair_bitmaps += [pair_bitmap]
mcc = ftme.mcc(cm.evaluate(cg))
rmsd = ftme.cg_rmsd(cgs[0], cg)
seq_struct = {"sequence": cg.seq,
"structure": cg.to_dotbracket_string(),
"extraLinks": links}
fud.pv('options.names')
fud.pv('mcc, rmsd')
if options.names:
seq_struct['name'] = op.basename(filename) + " ({:.2f},{:.1f})".format(mcc, rmsd)
else:
seq_struct['name'] = ''
structs += [seq_struct]
mccs += [mcc]
if options.sort_by == 'pca':
print >>sys.stderr, "Sorting by pca"
ix = reorder_structs(pair_bitmaps)
else:
print >>sys.stderr, "Sorting by mcc"
ix = np.argsort(-np.array(mccs))
new_array = [0 for i in range(len(ix))]
for i,x in enumerate(ix):
new_array[i] = structs[x]
print output_template.format(json.dumps(new_array))
def test_rotate_keeps_RMSD_zero0(self):
cg1_rot = copy.deepcopy(self.cg1)
cg1_rot.rotate(30, unit="degrees")
cg1_rot.rotate(-30, unit="degrees")
self.assertLess(ftme.cg_rmsd(self.cg1, cg1_rot), 10**-6)
def main(args):
cgs = []
projs = []
for file_ in args.files:
cgs.append(ftmc.CoarseGrainRNA(file_))
try:
projs.append(ftmp.Projection2D(cgs[-1]))
except ValueError:
projs.append(None)
p_rmsds = OrderedDict()
cg_rmsds = OrderedDict()
p_rmsds[0] = 0.0
cg_rmsds[0] = 0.0
if "," in args.max_diff:
diffs = map(int, args.max_diff.split(","))
else:
diffs = range(1, int(args.max_diff) + 1)
for diff in diffs:
print ("diff {}".format(diff))
prmsd = 0
cgrmsd = 0
count = 0
pcount = 0
for i in range(0, len(cgs) - diff):
count += 1
try:
vrs1 = np.array([x for p in sorted(projs[i]._coords.keys()) for x in projs[i]._coords[p]])
vrs2 = np.array([x for p in sorted(projs[i + diff]._coords.keys()) for x in projs[i + diff]._coords[p]])
prmsd += ftms.rmsd(vrs1, vrs2)
pcount += 1
except:
pass
cgrmsd += ftms.cg_rmsd(cgs[i], cgs[i + diff])
if count:
cg_rmsds[diff] = cgrmsd / count
if pcount:
p_rmsds[diff] = prmsd / pcount
print "projection RMSDs:", p_rmsds
print "3D-RMSDs:", cg_rmsds
import matplotlib.pyplot as plt
if args.target_structure and args.hausdorff_reference:
fig, (ax, axT, axH) = plt.subplots(3)
elif args.target_structure:
fig, (ax, axT) = plt.subplots(2)
elif args.hausdorff_reference:
fig, (ax, axH) = plt.subplots(2)
else:
fig, ax = plt.subplots()
if args.target_structure:
target = ftmc.CoarseGrainRNA(args.target_structure)
target_rmsds = []
target_proj_rmsds = []
try:
target_proj = ftmp.Projection2D(target)
except ValueError:
pass
else:
target_vrs = np.array([x for p in sorted(target_proj._coords.keys()) for x in target_proj._coords[p]])
for proj in projs:
try:
vrs1 = np.array([x for p in sorted(proj._coords.keys()) for x in proj._coords[p]])
prmsd = ftms.rmsd(vrs1, target_vrs)
target_proj_rmsds.append(prmsd)
except:
target_proj_rmsds.append(float("nan"))
target_vrs = ftug.bg_virtual_residues(target)
for cg in cgs:
vrs1 = ftug.bg_virtual_residues(cg)
cgrmsd = ftms.rmsd(vrs1, target_vrs)
target_rmsds.append(cgrmsd)
xval = np.arange(len(cgs)) * args.step_size
if target_proj_rmsds:
axT.plot(xval, target_proj_rmsds, label="Projection", color="green")
axT.plot(xval, target_rmsds, label="3D", color="blue")
axT.set_title("RMSD to target structure")
axT.set_xlabel("step")
axT.set_ylabel("RMSD")
leg = axT.legend(framealpha=0.8, fancybox=True)
leg.get_frame().set_linewidth(0.0)
plt.subplots_adjust(hspace=0.4)
if args.hausdorff_reference:
ref_img = scipy.ndimage.imread(args.hausdorff_reference)
ref_quarter = scipy.ndimage.zoom(ref_img, 0.3) > 150
degrees = get_refimg_longest_axis(ref_img)
global_optima = []
local_optima = []
for cg in cgs:
score, img, params = fph.try_parameters(ref_img, args.hausdorff_scale, cg, degrees)
local_optima.append(score)
s, i, params = fph.globally_minimal_distance(
ref_quarter, args.hausdorff_scale, cg, start_points=40, starting_rotations=degrees, virtual_atoms=False
)
score, img, params = fph.locally_minimal_distance(
ref_img, args.hausdorff_scale, cg, params[1], params[2], params[0], maxiter=200
)
global_optima.append(score)
axH.plot(xval, global_optima, label="Global Minimization", color="red")
axH.plot(xval, local_optima, label="Local Minimization", color="lavender")
axH.set_title("Hausdorff Distance to reference image")
axH.set_xlabel("step")
axH.set_ylabel("Hausdorff Distance")
leg = axH.legend(framealpha=0.8, fancybox=True)
leg.get_frame().set_linewidth(0.0)
plt.subplots_adjust(hspace=0.4)
p_rmsds = np.array(p_rmsds.items())
cg_rmsds = np.array(cg_rmsds.items())
ax.plot(p_rmsds[:, 0] * args.step_size, p_rmsds[:, 1], label="Projection", color="green", marker="o")
ax.plot(cg_rmsds[:, 0] * args.step_size, cg_rmsds[:, 1], label="3D", color="blue", marker="o")
ax.set_title("Average RMSD between structures X steps apart.")
ax.set_xlabel("steps apart")
ax.set_ylabel("RMSD")
leg = ax.legend(framealpha=0.8, fancybox=True)
leg.get_frame().set_linewidth(0.0)
fig.patch.set_facecolor("white")
if args.save_fig:
with open(args.save_fig, "w") as f:
pickle.dump(fig, f)
plt.show()
def view_2d_embedding(self, reference=None):
# http://baoilleach.blogspot.co.at/2014/01/convert-distance-matrix-to-2d.html
if reference is None:
# First cluster all structures based on pairwise RMSD
db = self._cluster_dbscan()
labels = db.labels_
core_samples_mask = np.zeros_like(db.labels_, dtype=bool)
core_samples_mask[db.core_sample_indices_] = True
unique_labels = set(labels)
# Then calculate the 2D coordinates for our embedding
mds = MDS(n_components=2,
dissimilarity="precomputed", random_state=6)
results = mds.fit(self._rmsd)
coords = results.embedding_
# Now plot
plt.plot(coords[:, 0], coords[:, 1], '-', color="blue")
colors = plt.cm.Spectral(np.linspace(0, 1, len(unique_labels)))
for k, col in zip(unique_labels, colors):
if k == -1:
# Black used for noise.
col = 'k'
class_member_mask = (labels == k)
plt.plot(coords[:, 0][class_member_mask & core_samples_mask],
coords[:, 1][class_member_mask & core_samples_mask],
'o', markerfacecolor=col, markeredgecolor='k', markersize=6
)
plt.plot(coords[:, 0][class_member_mask & ~core_samples_mask],
coords[:, 1][class_member_mask & ~core_samples_mask],
'o', markerfacecolor=col, markeredgecolor=col, markersize=1
)
plt.savefig("embedding_{}.svg".format(self._cgs[0].name))
plt.clf()
plt.close()
else:
# Create a huge distance matrix
alldists = np.zeros(
((len(self._cgs) + len(reference) + 1), (len(self._cgs) + len(reference) + 1)))
for i, j in it.combinations(range(len(alldists)), 2):
if i < len(self._cgs):
cg1 = self._cgs[i]
elif i < len(self._cgs) + len(reference):
cg1 = reference[i - len(self._cgs)]
else:
assert i == len(self._cgs) + len(reference)
cg1 = self._reference_cg
if j < len(self._cgs):
cg2 = self._cgs[j]
elif j < len(self._cgs) + len(reference):
cg2 = reference[j - len(self._cgs)]
else:
assert j == len(self._cgs) + len(reference)
cg2 = self._reference_cg
alldists[i, j] = alldists[j, i] = ftms.cg_rmsd(cg1, cg2)
# Then calculate the 2D coordinates for our embedding
mds = MDS(n_components=2,
dissimilarity="precomputed", random_state=6)
results = mds.fit(alldists)
coords = results.embedding_
# Now plot
plt.plot(coords[len(self._cgs):len(self._cgs) + len(reference), 0],
coords[len(self._cgs):len(self._cgs) + len(reference), 1], 's', color="green")
plt.plot(coords[:len(self._cgs), 0],
coords[:len(self._cgs), 1], '-o', color="blue")
plt.plot([coords[-1, 0]], [coords[-1, 1]], 's', color="red")
plt.savefig("embedding1_{}.svg".format(self._cgs[0].name))
plt.clf()
plt.close()
def test_rotate_keeps_RMSD_zero0(self):
cg1_rot = copy.deepcopy(self.cg1)
cg1_rot.rotate(30, unit="degrees")
cg1_rot.rotate(-30, unit="degrees")
self.assertLess(ftme.cg_rmsd(self.cg1, cg1_rot), 10**-6)
def test_cg_rmsd2(self):
cg1 = ftmc.CoarseGrainRNA('test/forgi/threedee/data/1GID_A.cg')
cg2 = ftmc.CoarseGrainRNA('test/forgi/threedee/data/1GID_A_sampled.cg')
self.assertAlmostEqual(ftme.cg_rmsd(cg1, cg2), 25.170088934277373)
def test_cg_rmsd2(self):
cg1 = ftmc.CoarseGrainRNA('test/forgi/threedee/data/1GID_A.cg')
self.assertAlmostEqual(ftme.cg_rmsd(cg1,cg1), 0)
cg2 = ftmc.CoarseGrainRNA('test/forgi/threedee/data/1GID_A_sampled.cg')
self.assertAlmostEqual(ftme.cg_rmsd(cg1,cg2), 7.684377397812648)
def main(args):
cgs = []
projs = []
for file_ in args.files:
cgs.append(ftmc.CoarseGrainRNA(file_))
try:
projs.append(ftmp.Projection2D(cgs[-1]))
except ValueError:
projs.append(None)
p_rmsds = OrderedDict()
cg_rmsds = OrderedDict()
p_rmsds[0] = 0.
cg_rmsds[0] = 0.
if "," in args.max_diff:
diffs = map(int, args.max_diff.split(","))
else:
diffs = range(1, int(args.max_diff) + 1)
for diff in diffs:
print("diff {}".format(diff))
prmsd = 0
cgrmsd = 0
count = 0
pcount = 0
for i in range(0, len(cgs) - diff):
count += 1
try:
vrs1 = np.array([
x for p in sorted(projs[i]._coords.keys())
for x in projs[i]._coords[p]
])
vrs2 = np.array([
x for p in sorted(projs[i + diff]._coords.keys())
for x in projs[i + diff]._coords[p]
])
prmsd += ftms.rmsd(vrs1, vrs2)
pcount += 1
except:
pass
cgrmsd += ftms.cg_rmsd(cgs[i], cgs[i + diff])
if count:
cg_rmsds[diff] = cgrmsd / count
if pcount:
p_rmsds[diff] = prmsd / pcount
print("projection RMSDs:", p_rmsds)
print("3D-RMSDs:", cg_rmsds)
import matplotlib.pyplot as plt
if args.target_structure and args.hausdorff_reference:
fig, (ax, axT, axH) = plt.subplots(3)
elif args.target_structure:
fig, (ax, axT) = plt.subplots(2)
elif args.hausdorff_reference:
fig, (ax, axH) = plt.subplots(2)
else:
fig, ax = plt.subplots()
if args.target_structure:
target = ftmc.CoarseGrainRNA(args.target_structure)
target_rmsds = []
target_proj_rmsds = []
try:
target_proj = ftmp.Projection2D(target)
except ValueError:
pass
else:
target_vrs = np.array([
x for p in sorted(target_proj._coords.keys())
for x in target_proj._coords[p]
])
for proj in projs:
try:
vrs1 = np.array([
x for p in sorted(proj._coords.keys())
for x in proj._coords[p]
])
prmsd = ftms.rmsd(vrs1, target_vrs)
target_proj_rmsds.append(prmsd)
except:
target_proj_rmsds.append(float("nan"))
target_vrs = target.get_ordered_virtual_residue_poss()
for cg in cgs:
vrs1 = cg.get_ordered_virtual_residue_poss()
cgrmsd = ftms.rmsd(vrs1, target_vrs)
target_rmsds.append(cgrmsd)
xval = np.arange(len(cgs)) * args.step_size
if target_proj_rmsds:
axT.plot(xval,
target_proj_rmsds,
label="Projection",
color="green")
axT.plot(xval, target_rmsds, label="3D", color="blue")
axT.set_title("RMSD to target structure")
axT.set_xlabel("step")
axT.set_ylabel("RMSD")
leg = axT.legend(framealpha=0.8, fancybox=True)
leg.get_frame().set_linewidth(0.0)
plt.subplots_adjust(hspace=0.4)
if args.hausdorff_reference:
ref_img = scipy.ndimage.imread(args.hausdorff_reference)
ref_quarter = (scipy.ndimage.zoom(ref_img, 0.3) > 150)
degrees = get_refimg_longest_axis(ref_img)
global_optima = []
local_optima = []
for cg in cgs:
score, img, params = fph.try_parameters(ref_img,
args.hausdorff_scale, cg,
degrees)
local_optima.append(score)
s, i, params = fph.globally_minimal_distance(
ref_quarter,
args.hausdorff_scale,
cg,
start_points=40,
starting_rotations=degrees,
virtual_atoms=False)
score, img, params = fph.locally_minimal_distance(
ref_img,
args.hausdorff_scale,
cg,
params[1],
params[2],
params[0],
maxiter=200)
global_optima.append(score)
axH.plot(xval, global_optima, label="Global Minimization", color="red")
axH.plot(xval,
local_optima,
label="Local Minimization",
color="lavender")
axH.set_title("Hausdorff Distance to reference image")
axH.set_xlabel("step")
axH.set_ylabel("Hausdorff Distance")
leg = axH.legend(framealpha=0.8, fancybox=True)
leg.get_frame().set_linewidth(0.0)
plt.subplots_adjust(hspace=0.4)
p_rmsds = np.array(list(p_rmsds.items()))
cg_rmsds = np.array(list(cg_rmsds.items()))
ax.plot(p_rmsds[:, 0] * args.step_size,
p_rmsds[:, 1],
label="Projection",
color="green",
marker="o")
ax.plot(cg_rmsds[:, 0] * args.step_size,
cg_rmsds[:, 1],
label="3D",
color="blue",
marker="o")
ax.set_title("Average RMSD between structures X steps apart.")
ax.set_xlabel("steps apart")
ax.set_ylabel("RMSD")
leg = ax.legend(framealpha=0.8, fancybox=True)
leg.get_frame().set_linewidth(0.0)
fig.patch.set_facecolor('white')
if args.save_fig:
with open(args.save_fig, "w") as f:
pickle.dump(fig, f)
plt.show()
def main():
usage = """
python cg_to_fornac_html.py file1.cg file2.cg
Convert coarse grain files to html files using fornac
to display a 2D version of the structure.
"""
num_args = 1
parser = OptionParser(usage=usage)
parser.add_option(
'-d',
'--distance',
dest='distance',
default=25,
help=
"Draw links between elements that are within a certain distance from each other",
type='float')
parser.add_option(
'-b',
'--bp-distance',
dest='bp_distance',
default=16,
help=
"Draw links only between nucleotides which are so many nucleotides apart",
type='int')
parser.add_option('-s',
'--sort-by',
dest='sort_by',
default='mcc',
help="What to sort by (options: mcc, pca)",
type='string')
parser.add_option('-n',
'--names',
dest='names',
default=False,
action='store_true',
help='Add the name of the structure to the display')
(options, args) = parser.parse_args()
if len(args) < num_args:
parser.print_help()
sys.exit(1)
structs = []
pair_bitmaps = []
cgs = []
all_links = []
mccs = []
cm = None
for filename in args:
cg = ftmc.CoarseGrainRNA(filename)
cgs += [cg]
if not cm:
cm = ftme.AdjacencyCorrelation(cg)
(links, pair_bitmap) = extract_extra_links(
cg,
options.distance,
options.bp_distance,
correct_links=None if len(all_links) == 0 else all_links[0])
all_links += [links]
pair_bitmaps += [pair_bitmap]
mcc = ftme.mcc(cm.evaluate(cg))
rmsd = ftme.cg_rmsd(cgs[0], cg)
seq_struct = {
"sequence": cg.seq,
"structure": cg.to_dotbracket_string(),
"extraLinks": links
}
fud.pv('options.names')
fud.pv('mcc, rmsd')
if options.names:
seq_struct['name'] = op.basename(
filename) + " ({:.2f},{:.1f})".format(mcc, rmsd)
else:
seq_struct['name'] = ''
structs += [seq_struct]
mccs += [mcc]
if options.sort_by == 'pca':
print("Sorting by pca", file=sys.stderr)
ix = reorder_structs(pair_bitmaps)
else:
print("Sorting by mcc", file=sys.stderr)
ix = np.argsort(-np.array(mccs))
new_array = [0 for i in range(len(ix))]
for i, x in enumerate(ix):
new_array[i] = structs[x]
print(output_template.format(json.dumps(new_array)))
def rmsd_to_stru(cgs, reference_cg):
rmsd = np_nans(len(cgs))
for i, cg in enumerate(cgs):
rmsd[i] = ftms.cg_rmsd(cg, reference_cg)
return rmsd
def test_building_samples_stats(self):
for i in range(RAND_REPETITION):
self.builder.build(self.sm)
self.assertGreater(ftmsim.cg_rmsd(self.sm.bg, self.cg_copy), 1)