Author: tlinnet Date: Thu Aug 21 22:57:45 2014 New Revision: 25189 URL: http://svn.gna.org/viewcvs/relax?rev=25189&view=rev Log: Modified intermediate systemtest: Relax_disp.test_bug_9999_slow_r1rho_r2eff_error_with_mc to see if the initial Grid Search for 'i0' and 'R2eff' estimation can be skipped. This is done by converting the exponential curve, to a linear curve, and calculate the best parameters by a line of best fit by least squares. This seems like a promising method as an initial estimator of 'i0' and 'r2eff'. For 500 to 2000 Monte-Carlo simulations, this could have an influence on the timings, as all grid searchs could be skipped. Modified: trunk/test_suite/system_tests/relax_disp.py Modified: trunk/test_suite/system_tests/relax_disp.py URL: http://svn.gna.org/viewcvs/relax/trunk/test_suite/system_tests/relax_disp.py?rev=25189&r1=25188&r2=25189&view=diff ============================================================================== --- trunk/test_suite/system_tests/relax_disp.py (original) +++ trunk/test_suite/system_tests/relax_disp.py Thu Aug 21 22:57:45 2014 @@ -23,7 +23,7 @@ # Python module imports. from os import F_OK, access, getcwd, path, sep -from numpy import array, median +from numpy import array, exp, median, log, sum import re, math from tempfile import mkdtemp @@ -35,7 +35,7 @@ from lib.io import get_file_path from pipe_control.mol_res_spin import generate_spin_string, return_spin, spin_loop from specific_analyses.relax_disp.checks import check_missing_r1 -from specific_analyses.relax_disp.data import generate_r20_key, get_curve_type, has_exponential_exp_type, has_r1rho_exp_type, loop_exp_frq, loop_exp_frq_offset_point, loop_exp_frq_offset_point_time, return_grace_file_name_ini, return_param_key_from_data +from specific_analyses.relax_disp.data import average_intensity, generate_r20_key, get_curve_type, has_exponential_exp_type, has_r1rho_exp_type, loop_exp_frq, loop_exp_frq_offset_point, loop_exp_frq_offset_point_time, loop_time, return_grace_file_name_ini, return_param_key_from_data from specific_analyses.relax_disp.data import INTERPOLATE_DISP, INTERPOLATE_OFFSET, X_AXIS_DISP, X_AXIS_W_EFF, X_AXIS_THETA, Y_AXIS_R2_R1RHO, Y_AXIS_R2_EFF from specific_analyses.relax_disp.model import models_info, nesting_param from specific_analyses.relax_disp.variables import EXP_TYPE_CPMG_DQ, EXP_TYPE_CPMG_MQ, EXP_TYPE_CPMG_PROTON_MQ, EXP_TYPE_CPMG_PROTON_SQ, EXP_TYPE_CPMG_SQ, EXP_TYPE_CPMG_ZQ, EXP_TYPE_LIST, EXP_TYPE_R1RHO, MODEL_B14_FULL, MODEL_CR72, MODEL_CR72_FULL, MODEL_DPL94, MODEL_IT99, MODEL_LIST_ANALYTIC_CPMG, MODEL_LIST_FULL, MODEL_LIST_NUMERIC_CPMG, MODEL_LM63, MODEL_M61, MODEL_M61B, MODEL_MP05, MODEL_NOREX, MODEL_NS_CPMG_2SITE_3D_FULL, MODEL_NS_CPMG_2SITE_EXPANDED, MODEL_NS_CPMG_2SITE_STAR_FULL, MODEL_NS_R1RHO_2SITE, MODEL_NS_R1RHO_3SITE, MODEL_NS_R1RHO_3SITE_LINEAR, MODEL_PARAMS, MODEL_R2EFF, MODEL_TP02, MODEL_TAP03 @@ -158,8 +158,8 @@ # Now loop over the experiments, to set the variables in relax. exp_ids = [] - for exp in exps: - sfrq, time_T2, ncycs, r2eff_errs = exp + for exp_i in exps: + sfrq, time_T2, ncycs, r2eff_errs = exp_i exp_id = 'CPMG_%3.1f' % (sfrq/1E6) exp_ids.append(exp_id) @@ -193,8 +193,8 @@ # Now read data in. for exp_type, frq, ei, mi in loop_exp_frq(return_indices=True): exp_id = exp_ids[mi] - exp = exps[mi] - sfrq, time_T2, ncycs, r2eff_errs = exp + exp_i = exps[mi] + sfrq, time_T2, ncycs, r2eff_errs = exp_i # Then loop over the spins. for res_name, res_num, spin_name, params in spins: @@ -1363,26 +1363,15 @@ # Read data. self.interpreter.results.read(prev_data_path + sep + 'results') - # Get initial offset, point, time - for exp_type, frq, offset, point, time, ei, mi, oi, di, ti in loop_exp_frq_offset_point_time(return_indices=True): - offset_i = offset - point_i = point - time_i = time - break - # Now count number - graph_nr = 0 - for exp_type, frq, offset, point, time, ei, mi, oi, di, ti in loop_exp_frq_offset_point_time(return_indices=True): - print(exp_type, frq, offset, point, time) - - # If different, count 1 graph. - if offset != offset_i or point != point_i: - offset_i = offset - point_i = point - graph_nr += 1 - print("Graph %i complete\n" % graph_nr) - - print(graph_nr + 1) + graph_nr = 1 + for exp_type, frq, offset, point in loop_exp_frq_offset_point(return_indices=False): + print("\nGraph nr %i" % graph_nr) + for time in loop_time(exp_type=exp_type, frq=frq, offset=offset, point=point): + print(exp_type, frq, offset, point, time) + graph_nr += 1 + + ## Possibly do an error analysis. # Check if intensity errors have already been calculated by the user. precalc = True @@ -1425,13 +1414,111 @@ model = 'R2eff' self.interpreter.relax_disp.select_model(model) + for spin, spin_id in spin_loop(return_id=True, skip_desel=True): + #delattr(spin, 'r2eff') + #delattr(spin, 'r2eff_err') + #delattr(spin, 'i0') + #delattr(spin, 'i0_err') + setattr(spin, 'r2eff', {}) + setattr(spin, 'r2eff_err', {}) + setattr(spin, 'i0', {}) + setattr(spin, 'i0_err', {}) + # Do Grid Search - self.interpreter.minimise.grid_search(lower=None, upper=None, inc=11, constraints=True, verbosity=1) + self.interpreter.minimise.grid_search(lower=None, upper=None, inc=21, constraints=True, verbosity=1) + + # Start dic. + my_dic = {} + + # Loop over each spectrometer frequency and dispersion point. + for cur_spin, mol_name, resi, resn, spin_id in spin_loop(full_info=True, return_id=True, skip_desel=True): + # Add key to dic. + my_dic[spin_id] = {} + + # Generate spin string. + spin_string = generate_spin_string(spin=cur_spin, mol_name=mol_name, res_num=resi, res_name=resn) + + # Loop over the parameters. + #print("Grid optimised parameters for spin: %s" % (spin_string)) + + for exp_type, frq, offset, point in loop_exp_frq_offset_point(): + # Generate the param_key. + param_key = return_param_key_from_data(exp_type=exp_type, frq=frq, offset=offset, point=point) + + # Add key to dic. + my_dic[spin_id][param_key] = {} + + # Get the value. + R2eff_value = getattr(cur_spin, 'r2eff')[param_key] + i0_value = getattr(cur_spin, 'i0')[param_key] + + # Save to dic. + my_dic[spin_id][param_key]['R2eff_value_grid'] = R2eff_value + my_dic[spin_id][param_key]['i0_value_grid'] = i0_value + + ## Now try do a line of best fit by least squares. + # The peak intensities, errors and times. + values = [] + errors = [] + times = [] + for time in loop_time(exp_type=exp_type, frq=frq, offset=offset, point=point): + values.append(average_intensity(spin=cur_spin, exp_type=exp_type, frq=frq, offset=offset, point=point, time=time, sim_index=None)) + errors.append(average_intensity(spin=cur_spin, exp_type=exp_type, frq=frq, offset=offset, point=point, time=time, error=True)) + times.append(time) + + # y= A exp(x * k) + # w[i] = ln(y[i]) + # int[i] = i0 * exp( - times[i] * r2eff); + w = log(array(values)) + x = - array(times) + n = len(times) + + b = (sum(x*w) - 1./n * sum(x) * sum(w) ) / ( sum(x**2) - 1./n * (sum(x))**2 ) + a = 1./n * sum(w) - b * 1./n * sum(x) + R2eff_est = b + i0_est = exp(a) + + my_dic[spin_id][param_key]['R2eff_est'] = R2eff_est + my_dic[spin_id][param_key]['i0_est'] = i0_est + + # Print value. + #print("%-10s %-6s %-6s %3.1f : %3.1f" % ("Parameter:", 'R2eff', "Value : Estimated:", R2eff_value, R2eff_est)) + #print("%-10s %-6s %-6s %3.1f : %3.1f" % ("Parameter:", 'i0', "Value: Estimated:", i0_value, i0_est)) + # Do minimisation. - set_func_tol = 1e-11 - set_max_iter = 10000 + set_func_tol = 1e-25 + set_max_iter = int(1e7) self.interpreter.minimise.execute(min_algor='simplex', func_tol=set_func_tol, max_iter=set_max_iter, constraints=True, scaling=True, verbosity=1) + + # Loop over each spectrometer frequency and dispersion point. + for cur_spin, mol_name, resi, resn, spin_id in spin_loop(full_info=True, return_id=True, skip_desel=True): + # Generate spin string. + spin_string = generate_spin_string(spin=cur_spin, mol_name=mol_name, res_num=resi, res_name=resn) + + # Loop over the parameters. + print("Optimised parameters for spin: %s" % (spin_string)) + + for exp_type, frq, offset, point in loop_exp_frq_offset_point(): + # Generate the param_key. + param_key = return_param_key_from_data(exp_type=exp_type, frq=frq, offset=offset, point=point) + + # Get the value. + R2eff_value = getattr(cur_spin, 'r2eff')[param_key] + i0_value = getattr(cur_spin, 'i0')[param_key] + + # Extract from dic. + R2eff_value_grid = my_dic[spin_id][param_key]['R2eff_value_grid'] + i0_value_grid = my_dic[spin_id][param_key]['i0_value_grid'] + R2eff_est = my_dic[spin_id][param_key]['R2eff_est'] + i0_est = my_dic[spin_id][param_key]['i0_est'] + + # Print value. + #print("%-10s %-6s %-6s %3.1f : %3.1f" % ("Parameter:", 'R2eff', "Value : Estimated:", R2eff_value, R2eff_est)) + #print("%-10s %-6s %-6s %3.1f : %3.1f" % ("Parameter:", 'i0', "Value: Estimated:", i0_value, i0_est)) + + print("%-10s %-6s %-6s %3.1f : %3.1f: %3.1f" % ("Parameter:", 'R2eff', "Grid : Min : Estimated:", R2eff_value_grid, R2eff_value, R2eff_est)) + print("%-10s %-6s %-6s %3.1f : %3.1f: %3.1f" % ("Parameter:", 'i0', "Grid : Min : Estimated:", i0_value_grid, i0_value, i0_est)) def test_check_missing_r1(self):