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annotate m-toolbox/test/test_ao_size_on_xml.m @ 3:960fe1aa1c10 database-connection-manager

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Add LTPDADatabaseConnectionManager implementation. Java code
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
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1 function out = test_ao_size_on_xml(load, tsdata_sizes)
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % DESCRIPTION: TEST_AO_SIZE_ON_XML Test of the size of aos when stored to
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5 % disk as xml files, as a function of the number of samples
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6 %
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7 % CALL: o = test_ao_size_on_xml(load, tsdata_sizes)
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8 %
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9 % INPUTS: load - skips the evaluation phase and only load results
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10 % tsdata_sizes - array of lengths of
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11 %
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12 % OUTPUTS: out - a matrix with the lenghts of ao (samples) and
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13 % curresponding xml file size (bytes)
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14 %
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15 % VERSION: $Id: test_ao_size_on_xml.m,v 1.2 2008/03/06 10:06:18 mauro Exp $
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16 %
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17 % HISTORY: 05-03-2008 M Hueller
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18 % Creation
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19 %
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20 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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21
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22 ALGONAME = mfilename;
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23 VERSION = '$Id: test_ao_size_on_xml.m,v 1.2 2008/03/06 10:06:18 mauro Exp $';
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24 CATEGORY = 'Helper';
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25
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26
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27 dir_name = 'c:\data\profile\';
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28 file_name = 'ao_xml_size';
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29
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30 if ~load
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31 % Tsdata sampling rate
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32 fs = 10;
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33
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34 % Sinewave amplitude, frequency, phase
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35 A = 1;
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36 f_m = 0.1;
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37 phi = 0;
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38
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39 for jj = 1:length(tsdata_sizes)
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40
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41 % Calculate the number of seconds for the required size and sampling
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42 % rate
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43 nsecs = tsdata_sizes(jj)/fs;
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44
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45 disp([' ']);
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46 disp(['ao with ' num2str(nsecs*fs) ' samples']);
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47 disp([' ']);
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48
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49 % Evaluates the test data aos
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50 a = ao(plist('waveform', 'sine wave', ...
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51 'fs', fs, ...
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52 'nsecs', nsecs, ...
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53 'A', A, ...
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54 'f', f_m, ...
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55 'phi', phi));
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56
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57 % Saves the test data ao on xml format, adding the length to its name
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58 save(a, [dir_name file_name '_' num2str(nsecs*fs) '.xml']);
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59
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60 end
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61 else
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62 % Recall the sampling rate from the ao itself
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63 a = ao([dir_name file_name '_' num2str(tsdata_sizes(end)) '.xml']);
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64 fs = a.data.fs;
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65 end
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66
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67 % Gets the list of the files produced for the test, skipping '.' and '..'
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68 list = dir(dir_name);
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69 list = list(3:end);
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70
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71 sizes = [];
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72 lens = [];
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73
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74 % Loops over the files found in the directory
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75 for jj = 1:length(list)
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76 indx = findstr(list(jj).name, '_');
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77 start = indx(end) + 1;
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78 stop = findstr(list(jj).name, '.') - 1;
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79
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80 % Recover the test ao length from its name
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81 len = str2double(list(jj).name(start:stop));
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82
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83 % Checks if the length is in the list given by user
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84 for kk = 1:length(tsdata_sizes)
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85 if len == tsdata_sizes(kk)
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86 lens = [lens;len];
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87 sizes = [sizes;list(jj).bytes];
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88 end
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89 end
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90 end
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91
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92
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93 figure;
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94
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95 plot(lens, sizes, 'k.','MarkerSize',8);
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96 grid on;
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97 xlabel('Samples');
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98 ylabel('xml file size (bytes)')
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99 legend(['tsdata at ' num2str(fs) ' Hz']);
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100
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101 out = [lens sizes];
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102
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103