Example #1
0
        public List <peak> get_target_range(List <peak> peaks, double mono_mz, int charge, IsotopeSplineDB splinedb)
        {
            List <peak> .Enumerator copier     = peaks.GetEnumerator();
            List <peak> .Enumerator look_ahead = peaks.GetEnumerator();


            List <peak> light_spec = new List <peak>();
            List <peak> iso_hits   = new List <peak>();

            IsotopeDistribution id;

            id = splinedb.estimateFromPeptideWeight(charge * mono_mz, 5);

            double[] target_isos = { mono_mz, (mono_mz + (massDiff / charge)), (mono_mz + 2 * (massDiff / charge)), (mono_mz + 3 * (massDiff / charge)), (mono_mz + 4 * (massDiff / charge)) };
            double   tol         = 20 * mono_mz * charge * (1 / 1000000.0);
            int      curr_iso    = 0;
            bool     hit_iso     = false;
            double   iso_comp    = target_isos[0];

            double[] target_intensities = { 0.0, 0.0, 0.0, 0.0, 0.0 };

            while (look_ahead.MoveNext() && look_ahead.Current.mz < (mono_mz - 0.1))
            {
                copier.MoveNext();
            }


            double best_diff      = 100000.0;
            double best_old_inten = 0.0;

            //double mono_intensity = 0.0;

            if (Math.Abs(target_isos[curr_iso] - copier.Current.mz) < tol)
            {
                light_spec.Add(new peak(copier.Current.mz, copier.Current.intensity));
                best_diff             = Math.Abs(target_isos[curr_iso] - copier.Current.mz);
                best_old_inten        = copier.Current.intensity;
                target_intensities[0] = best_old_inten;
            }

            bool early_exit = false;

            while (copier.Current.mz < (mono_mz + 4 * (massDiff / charge) + 0.1))
            {
                if (curr_iso < 5)
                {
                    double curr_diff = Math.Abs(target_isos[curr_iso] - copier.Current.mz);

                    if (curr_diff < tol)
                    {
                        if (curr_diff < best_diff)
                        {
                            if (best_diff < 99999.0)
                            {
                                light_spec[light_spec.Count - 1] = new peak(light_spec.ElementAt(light_spec.Count - 1).mz, -1 * best_old_inten);
                            }
                            best_diff      = curr_diff;
                            best_old_inten = copier.Current.intensity;

                            if (curr_iso == 0)
                            {
                                target_intensities[0] = best_old_inten;
                            }

                            light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity + 2 * target_intensities[curr_iso]));
                        }

                        else
                        {
                            light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));
                        }

                        if (!copier.MoveNext())
                        {
                            early_exit = true;
                            break;
                        }
                    }

                    else if (copier.Current.mz > target_isos[curr_iso])
                    {
                        if (curr_iso == 0)
                        {
                            for (int other_iso = 1; other_iso < 5; ++other_iso)
                            {
                                target_intensities[other_iso] = target_intensities[0] * (id.getIntensity(other_iso) / id.getIntensity(0));
                            }
                        }

                        ++curr_iso;
                        best_diff      = 100000.0;
                        best_old_inten = 0.0;
                    }

                    else
                    {
                        light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));
                        if (!copier.MoveNext())
                        {
                            early_exit = true;
                            break;
                        }
                    }
                }

                else
                {
                    light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));
                    if (!copier.MoveNext())
                    {
                        early_exit = true;
                        break;
                    }
                }
            }

            if (!early_exit)
            {
                light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));
            }

            return(light_spec);
        }
Example #2
0
        static void Main(string[] args)
        {
            string line;

            var driver = new DynWinDriver();

            Console.WriteLine(args[0]);

            bool write_out = System.Convert.ToBoolean(args[0]);

            //bad practice but honestly whatever
            int    charge = 2;
            string temp;
            double mono_mz = 821.399475097656;

            System.IO.StreamReader file      = new System.IO.StreamReader(args[1]);
            List <peak>            temp_scan = new List <peak>();

            while ((line = file.ReadLine()) != null)
            {
                if (line == "BREAK")
                {
                    break;
                }
                string[] peak = line.Split('\t');
                temp_scan.Add(new peak(System.Convert.ToDouble(peak[0]), System.Convert.ToDouble(peak[1])));
            }

            List <peak> .Enumerator copier     = temp_scan.GetEnumerator();
            List <peak> .Enumerator look_ahead = temp_scan.GetEnumerator();

            List <peak> light_spec = new List <peak>();
            List <peak> iso_hits   = new List <peak>();



            /*
             *
             * NEW CODE BE CAREFUL
             *
             *
             */

            IsotopeSplineDB     splineDB = new IsotopeSplineDB("C:/dev/workspace/IsotopeSplines_10kDa_21isotopes.xml");
            IsotopeDistribution id;

            id = splineDB.estimateFromPeptideWeight(charge * mono_mz, 5);

            double[] target_isos = { mono_mz, (mono_mz + (massDiff / charge)), (mono_mz + 2 * (massDiff / charge)), (mono_mz + 3 * (massDiff / charge)), (mono_mz + 4 * (massDiff / charge)) };

            //new variable, be wise
            double[] target_intensities = { 0.0, 0.0, 0.0, 0.0, 0.0 };

            double tol      = 20 * mono_mz * charge * (1 / 1000000.0) * 2;
            int    curr_iso = 0;
            bool   hit_iso  = false;
            double iso_comp = target_isos[0];

            while (look_ahead.MoveNext() && look_ahead.Current.mz < (mono_mz - 0.1))
            {
                copier.MoveNext();
            }

            light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));

            bool normal_exit = false;

            while (copier.MoveNext())
            {
                if (copier.Current.mz < (mono_mz + 4 * (massDiff / charge) + 0.1))
                {
                    if (curr_iso < 5 && Math.Abs(target_isos[curr_iso] - copier.Current.mz) < tol)
                    {
                        iso_hits.Add(new peak(copier.Current.mz, copier.Current.intensity));
                        hit_iso = true;
                    }

                    else if (hit_iso)
                    {
                        int    best_match = 0;
                        double min_diff   = Math.Abs(iso_hits[0].mz - target_isos[curr_iso]);
                        for (int i = 0; i < iso_hits.Count(); i++)
                        {
                            if (Math.Abs(iso_hits[i].mz - target_isos[curr_iso]) < min_diff)
                            {
                                best_match = i;
                                min_diff   = Math.Abs(iso_hits[i].mz - target_isos[curr_iso]);
                            }
                        }

                        for (int i = 0; i < iso_hits.Count(); i++)
                        {
                            //new version

                            if (i == best_match)
                            {
                                //everything in this block is the new code
                                if (curr_iso == 0)
                                {
                                    target_intensities[0] = iso_hits[i].intensity;
                                    for (int other_iso = 1; other_iso < 5; ++other_iso)
                                    {
                                        target_intensities[other_iso] = iso_hits[i].intensity * (id.getIntensity(other_iso) / id.getIntensity(0));
                                    }
                                }

                                light_spec.Add(new peak(iso_hits[i].mz, iso_hits[i].intensity));
                            }

                            //
                            //  old version
                            //
                            //if (i == best_match)
                            //    light_spec.Add(new peak(iso_hits[i].mz, iso_hits[i].intensity));

                            else
                            {
                                light_spec.Add(new peak(iso_hits[i].mz, -1 * iso_hits[i].intensity));
                            }
                        }

                        iso_hits.Clear();
                        curr_iso++;

                        if (curr_iso == 5)
                        {
                            light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));
                            hit_iso = false;
                        }

                        else if (Math.Abs(target_isos[curr_iso] - copier.Current.mz) < tol)
                        {
                            iso_hits.Add(new peak(copier.Current.mz, copier.Current.intensity));
                            hit_iso = true;
                        }

                        else
                        {
                            light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));
                            hit_iso = false;
                        }
                    }

                    else
                    {
                        light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));
                    }
                }

                else
                {
                    //clean up
                    normal_exit = true;
                    if (iso_hits.Count() > 0)
                    {
                        int    best_match = 0;
                        double min_diff   = Math.Abs(iso_hits[0].mz - target_isos[curr_iso]);
                        for (int i = 0; i < iso_hits.Count(); i++)
                        {
                            if (Math.Abs(iso_hits[i].mz - target_isos[curr_iso]) < min_diff)
                            {
                                best_match = i;
                                min_diff   = Math.Abs(iso_hits[i].mz - target_isos[curr_iso]);
                            }
                        }

                        for (int i = 0; i < iso_hits.Count(); i++)
                        {
                            if (i == best_match)
                            {
                                //light_spec.Add(new peak(iso_hits[i].mz, iso_hits[i].intensity));
                                light_spec.Add(new peak(iso_hits[i].mz, iso_hits[i].intensity));
                            }

                            else
                            {
                                light_spec.Add(new peak(iso_hits[i].mz, -1 * iso_hits[i].intensity));
                            }
                        }
                    }

                    light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));
                    break;
                }
            }

            //new code to account for "full iso_hits" issue

            if (!normal_exit)
            {
                if (iso_hits.Count() > 0)
                {
                    int    best_match = 0;
                    double min_diff   = Math.Abs(iso_hits[0].mz - target_isos[curr_iso]);
                    for (int i = 0; i < iso_hits.Count(); i++)
                    {
                        if (Math.Abs(iso_hits[i].mz - target_isos[curr_iso]) < min_diff)
                        {
                            best_match = i;
                            min_diff   = Math.Abs(iso_hits[i].mz - target_isos[curr_iso]);
                        }
                    }

                    for (int i = 0; i < iso_hits.Count(); i++)
                    {
                        if (i == best_match)
                        {
                            //light_spec.Add(new peak(iso_hits[i].mz, iso_hits[i].intensity));
                            light_spec.Add(new peak(iso_hits[i].mz, iso_hits[i].intensity));
                        }

                        else
                        {
                            light_spec.Add(new peak(iso_hits[i].mz, -1 * iso_hits[i].intensity));
                        }
                    }
                }
            }

            //look_ahead = copier;
            //if (look_ahead.MoveNext())
            //    light_spec.Add(new peak(copier.Current.mz, -1 * copier.Current.intensity));

            int front_index = 0;

            //IEnumerator<ICentroid> walker = temp_ms1.Centroids.GetEnumerator();
            //walker.MoveNext();

            //this is likely unnecessary now

            while (light_spec[front_index].mz < (mono_mz - 0.1))
            {
                front_index++;
            }

            List <peak> light_spec_2 = driver.get_target_range(temp_scan, mono_mz, charge, splineDB);


            for (int i = 0; i < light_spec_2.Count; i++)
            {
                Console.WriteLine("Old: ({0}, {1}) New: ({2}, {3})", light_spec[i].mz, light_spec[i].intensity, light_spec_2[i].mz, light_spec_2[i].intensity);

                if (Math.Abs(light_spec[i].mz - light_spec_2[i].mz) >= 0.0001 || Math.Abs(light_spec[i].intensity - light_spec_2[i].intensity) >= 0.0001)
                {
                    Console.WriteLine("Something is wrong with modular function");

                    //System.Environment.Exit(1);
                }
            }


            int    back_index = front_index;
            double temp_score;
            double min_window    = 0.4;
            double default_width = 4.0;
            double margin        = 0.1;
            int    precision     = 1;

            //old implementation

            /*
             * double window_limit;
             *
             * if ((light_spec[front_index].mz - light_spec[front_index - 1].mz) > 0.2)
             *  window_limit = (light_spec[front_index].mz + light_spec[front_index - 1].mz) / 2.0;
             *
             * else
             *  window_limit = light_spec[front_index].mz - 0.1;
             *
             * while (back_index < light_spec.Count() && (light_spec[back_index].mz - window_limit) < 0.4)
             *  back_index++;
             *
             * int min_index = back_index;
             * List<subarrNode> first_scores = new List<subarrNode>();
             * while (back_index < (light_spec.Count()))
             * {
             *  int temp_index = front_index;
             *  temp_score = 0.0;
             *  while (temp_index <= back_index)
             *  {
             *      temp_score += light_spec[temp_index].intensity;
             *      temp_index++;
             *  }
             *
             *  first_scores.Add(new subarrNode(front_index, back_index, temp_score));
             *  back_index++;
             *  if (back_index >= light_spec.Count())
             *      break;
             *  while ((light_spec[back_index].mz - light_spec[front_index].mz) >= 0.4)
             *      front_index++;
             *
             *  front_index--;
             * }
             *
             * List<subarrNode> final_scores = new List<subarrNode>();
             * back_index = min_index + 1;
             * final_scores.Add(first_scores[0]);
             *
             * while (back_index < (light_spec.Count() - 1))
             * {
             *  subarrNode previous = final_scores[back_index - min_index - 1];
             *  double extended = previous.score + light_spec[back_index].intensity;
             *  if (extended > first_scores[back_index - min_index].score)
             *  {
             *      final_scores.Add(new subarrNode(previous.front, previous.back + 1, extended));
             *  }
             *
             *  else
             *      final_scores.Add(first_scores[back_index - min_index]);
             *
             *  back_index++;
             *
             * }
             *
             * subarrNode best = final_scores[0];
             * for (int i = 1; i < final_scores.Count(); i++)
             * {
             *  if (final_scores[i].score > best.score)
             *      best = final_scores[i];
             * }
             */

            //NEW IMPLEMENTATION

            List <subarrNode> first_scores = new List <subarrNode>();

            first_scores.Add(new subarrNode(0, 0, light_spec[0].intensity));
            for (int i = 1; i < light_spec.Count; i++)
            {
                double new_score = light_spec[i].intensity + first_scores[i - 1].score;
                if (new_score > light_spec[i].intensity)
                {
                    first_scores.Add(new subarrNode(first_scores[i - 1].front, i, new_score));
                }

                else
                {
                    first_scores.Add(new subarrNode(i, i, light_spec[i].intensity));
                }
            }


            double local_sum = light_spec[0].intensity;
            int    j         = 0;

            subarrNode best = new subarrNode(0, 0, 0);

            while (j < light_spec.Count)
            {
                j++;
                if (light_spec[j].mz - light_spec[0].mz >= min_window)
                {
                    best.back = --j;
                    break;
                }
                local_sum += light_spec[j].intensity;
            }

            best.score = local_sum;

            int front = best.front;
            int back  = best.back;



            while (back < (light_spec.Count - 1))
            {
                double next_mz   = light_spec[back + 1].mz;
                int    num_peaks = (back - front) + 1;
                if (num_peaks > 1 && (next_mz - light_spec[front].mz) > min_window)
                {
                    local_sum -= light_spec[front].intensity;
                    front++;
                }

                else if ((next_mz - light_spec[front].mz) < min_window)
                {
                    local_sum += light_spec[back + 1].intensity;
                    back++;
                }

                else if ((next_mz - light_spec[front].mz) > min_window || (next_mz - light_spec[front].mz) == min_window)
                {
                    local_sum = local_sum + light_spec[back + 1].intensity - light_spec[front].intensity;
                    front++;
                    back++;
                }

                if (local_sum > best.score)
                {
                    best = new subarrNode(front, back, local_sum);
                }
                if (local_sum + first_scores[front - 1].score > best.score)
                {
                    best = new subarrNode(first_scores[front - 1].front, back, local_sum + first_scores[front - 1].score);
                }
            }



            if (write_out)
            {
                using (StreamWriter writetext = new StreamWriter(args[2]))
                {
                    for (int i = 0; i < light_spec_2.Count; i++)
                    {
                        string spec = (light_spec_2[i].mz).ToString() + '\t' + (light_spec_2[i].intensity).ToString();
                        writetext.WriteLine(spec);
                    }

                    string break_spec = "BREAK";
                    writetext.WriteLine(break_spec);
                }
            }
            double upper, lower;

            /*
             * if ((light_spec[best.front].mz - light_spec[best.front - 1].mz) > 0.2)
             *  lower = (light_spec[best.front].mz + light_spec[best.front - 1].mz) / 2.0;
             *
             * else
             *  lower = light_spec[best.front].mz - 0.1;
             *
             * if ((light_spec[best.back + 1].mz - light_spec[best.back].mz) > 0.2)
             *  upper = (light_spec[best.back].mz + light_spec[best.back + 1].mz) / 2.0;
             *
             * else
             *  upper = light_spec[best.back].mz + 0.1;
             *
             * if (upper - lower > 4.0)
             *  upper = lower + 4.0;
             *
             * double offset = ((upper + lower) / 2.0) - mono_mz;
             * double width = upper - lower;
             */


            //lower = Math.Min(light_spec[best.front - 1].mz + margin, (light_spec[best.front].mz + light_spec[best.front - 1].mz) / 2.0);

            //upper = Math.Max(light_spec[best.back + 1].mz - margin, (light_spec[best.back].mz + light_spec[best.back + 1].mz) / 2.0);

            roundedWindow dyn_win = driver.calculate_window(light_spec_2, mono_mz);

            upper = dyn_win.upper;
            lower = dyn_win.lower;


            //this line should ensure windows no larger than 4.0 MZ
            //if (upper - lower > 4.0)
            //    upper = lower + 4.0;

            double offset = ((upper + lower) / 2.0) - mono_mz;
            double width  = upper - lower;



            //using (StreamWriter writetext = new StreamWriter("C:\\dev\\real_time_seq\\diw_testing\\diw_testing\\tests\\standard_noisy_answers.txt", true))
            if (write_out)
            {
                using (StreamWriter writetext = new StreamWriter(args[2], true))
                {
                    string window_rep = dyn_win.offset.ToString() + '\t' + dyn_win.width.ToString() + '\t' + dyn_win.upper.ToString() + '\t' + dyn_win.lower.ToString();
                    writetext.WriteLine(window_rep);
                }
            }
            if (Math.Abs(dyn_win.width - width) >= 0.0001 || Math.Abs(dyn_win.offset - offset) >= 0.0001)
            {
                Console.WriteLine("Something is wrong with modular function");
                //System.Environment.Exit(1);
            }



            if (width > 4.0)
            {
                /*
                 * if (lower < target_isos[0] && upper > target_isos[4])
                 * {
                 *  lower = target_isos[2] - 2.0;
                 *  upper = target_isos[2] + 2.0;
                 * }
                 *
                 * if (offset < 0.0)
                 * {
                 *  lower = upper - 4.0;
                 * }
                 * else if (offset > (4 * (massDiff / charge)))
                 * {
                 *  upper = lower + 4.0;
                 * }
                 *
                 */

                double deficit   = width - 4.0;
                double right_gap = upper - target_isos[4];
                double left_gap  = target_isos[0] - lower;

                if (left_gap < 0.0)
                {
                    upper = lower + 4.0;
                }

                else if (right_gap < 0.0)
                {
                    lower = upper - 4.0;
                }

                else
                {
                    double ratio_right = right_gap / (right_gap + left_gap);
                    upper = upper - ratio_right * deficit;
                    lower = lower + (1 - ratio_right) * deficit;
                }

                offset = ((upper + lower) / 2.0) - mono_mz;
                width  = upper - lower;
            }


            double width_rounded;

            if (width > 4.0)
            {
                width_rounded = 4.0;
            }
            else
            {
                width_rounded = Math.Ceiling(width * 10) / 10;
            }


            Console.WriteLine("Old Beyond Edges {0} - {1}", light_spec_2[dyn_win.front - 1].mz, light_spec_2[dyn_win.back + 1].mz);
            Console.WriteLine("Rounded Edges {0} - {1}", mono_mz + offset - (width_rounded / 2), mono_mz + offset + (width_rounded / 2));



            dyn_win = driver.fix_window(light_spec_2, dyn_win, mono_mz, charge, target_isos);


            Console.WriteLine("Old Beyond Edges {0} - {1}", light_spec_2[dyn_win.front - 1].mz, light_spec_2[dyn_win.back + 1].mz);
            Console.WriteLine("Rounded Edges {0} - {1}", mono_mz + offset - (width_rounded / 2), mono_mz + offset + (width_rounded / 2));



            if (write_out)
            {
                using (StreamWriter writetext = new StreamWriter(args[2], true))
                {
                    string window_rep = dyn_win.offset.ToString() + '\t' + dyn_win.width.ToString() + '\t' + dyn_win.upper.ToString() + '\t' + dyn_win.lower.ToString();
                    writetext.WriteLine(window_rep);
                }
            }

            //offset = 10.12356456;
            //offset = -1.23856;

            Console.WriteLine("Original Offset: {0}", offset);

            double off_rounded = (double)(Math.Round((double)offset, 1));



            width_rounded = (double)(Math.Round((double)width_rounded, 1));



            double less_rounded = (double)(Math.Round((double)offset, 5));
            double first_few    = (double)(Math.Round((double)offset, 2));

            double low_mass      = 200.0 + first_few * 10;
            double remain_offset = less_rounded - first_few;
            double high_mass     = 2000.0 + remain_offset * 10000;

            double recon_offset = (high_mass - 2000.0) / 10000 + (low_mass - 200.0) / 10;

            Console.WriteLine("Low: {0}, High: {1}, Reconstructed Offset: {2}", low_mass, high_mass, recon_offset);
            Console.WriteLine("Offset: {0}, Width {1}", off_rounded, width_rounded);

            temp_score = 0.0;
        }