Esempio n. 1
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 def init_sim_h_table(self):
     if self.read_mode == 'w':
         try:
             self.db_main.remove_node('/', 'sim_h')
             print 'simulation header table dropped.'
         except tables.exceptions.NoSuchNodeError:
             print 'simulation header table not exist yet. nothing to initialize.'
         try:
             sim_h_desc = {
                 'sim_uuid': tables.StringCol(32),
                 'dix': tables.IntCol(),
                 'startdix': tables.IntCol(),
                 'enddix': tables.IntCol()
             }
             self.t_sim_h = self.db_main.create_table(
                 '/', 'sim_h', sim_h_desc)
             self.t_sim_h.cols.sim_uuid.create_index()
             self.t_sim_h.cols.dix.create_index()
             print 'simulation header table created.'
         except tables.exceptions.NodeError:
             self.t_sim_h = self.db_main.get_node('/', 'sim_h')
             print 'simulation header table opened.'
     else:
         self.t_sim_h = self.db_main.get_node('/', 'sim_h')
         print 'simulation header table opened.'
Esempio n. 2
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 def init_q_log(self):
     if self.read_mode == 'w':
         try:
             self.db_main.remove_node('/', 'q_log')
             print 'stats table dropped.'
         except tables.exceptions.NoSuchNodeError:
             print 'no q_log to drop.'
         try:
             q_log_desc = {
                 'sim_uuid': tables.StringCol(32),
                 'ticker': tables.StringCol(10),
                 'dix': tables.IntCol(),
                 'state': tables.Int64Col(),
                 'action': tables.IntCol(),
                 'reward': tables.FloatCol()
             }
             self.q_log = self.db_main.create_table('/', 'q_log',
                                                    q_log_desc)
             self.q_log.cols.ticker.create_index()
             self.q_log.cols.state.create_index()
             self.q_log.cols.action.create_index()
             print 'q log table created.'
         except tables.exceptions.NodeError:
             self.q_log = self.db_main.get_node('/', 'q_log')
             print 'q_log table opened.'
     else:
         self.q_log = self.db_main.get_node('/', 'q_log')
         print 'q_log table opened.'
def table_description(classname, nclassname, shape=()):
    """Return a table description for testing queries.

    The description consists of all PyTables data types, both in the
    top level and in the ``c_nested`` nested column.  A column of a
    certain TYPE gets called ``c_TYPE``.  An extra integer column
    ``c_extra`` is also provided.  If a `shape` is given, it will be
    used for all columns.  Finally, an extra indexed column
    ``c_idxextra`` is added as well in order to provide some basic
    tests for multi-index queries.

    """
    classdict = {}
    colpos = append_columns(classdict, shape)

    ndescr = nested_description(nclassname, colpos, shape=shape)
    classdict['c_nested'] = ndescr
    colpos += 1

    extracol = tables.IntCol(shape=shape, pos=colpos)
    classdict['c_extra'] = extracol
    colpos += 1

    idxextracol = tables.IntCol(shape=shape, pos=colpos)
    classdict['c_idxextra'] = idxextracol
    colpos += 1

    return type(classname, (tables.IsDescription,), classdict)
Esempio n. 4
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 def _col_descriptor(self):
     descriptor = OrderedDict([(k, t.FloatCol(dflt=nan, pos=i))
                               for i, k in enumerate(self.col_names)])
     descriptor['stat'] = t.IntCol(dflt=-1,
                                   pos=self.col_names.index('stat'))
     descriptor['qn'] = t.IntCol(dflt=-1, pos=self.col_names.index('qn'))
     return descriptor
Esempio n. 5
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 def init_q_table(self):
     if self.read_mode == 'w':
         try:
             self.db_main.remove_node('/', 'q_table')
             print 'q_table table dropped.'
         except tables.exceptions.NoSuchNodeError:
             print 'no q table to drop.'
         try:
             q_table_desc = {
                 'ticker': tables.IntCol(),
                 'state': tables.IntCol(),
                 'action': tables.IntCol(),
                 'reward': tables.FloatCol()
             }
             self.t_q = self.db_main.create_table('/', 'q_table',
                                                  q_table_desc)
             self.t_q.cols.ticker.create_index()
             self.t_q.cols.state.create_index()
             self.t_q.cols.action.create_index()
             print 'q table created.'
         except tables.exceptions.NodeError:
             self.t_q = self.db_main.get_node('/', 'q_table')
             print 'q table opened.'
     else:
         self.t_q = self.db_main.get_node('/', 'q_table')
         print 'q table opened.'
Esempio n. 6
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class SongMusicBrainz(tables.IsDescription):
    """
    Class to hold information coming from
    MusicBrainz for one song
    """
    year = tables.IntCol()
    # ARRAY INDEX
    idx_artist_mbtags = tables.IntCol()
Esempio n. 7
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class Sample(tables.IsDescription):
    vname = tables.StringCol(20)
    jno = tables.IntCol()
    pco = tables.IntCol()

    class features(tables.IsDescription):
        pos = tables.FloatCol(shape=(30, ))
        jod = tables.FloatCol(shape=(630, ))
        jld = tables.FloatCol(shape=(364, ))
        lla = tables.FloatCol(shape=(756, ))
Esempio n. 8
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class ENMetadata(tables.IsDescription):
    artist = tables.StringCol(MAXSTRLEN)
    bitrate = tables.IntCol()
    duration = tables.FloatCol()
    genre = tables.StringCol(MAXSTRLEN)
    id = tables.StringCol(MAXSTRLEN)
    md5 = tables.StringCol(32)
    release = tables.StringCol(MAXSTRLEN)
    samplerate = tables.IntCol()
    status = tables.StringCol(MAXSTRLEN)
    title = tables.StringCol(MAXSTRLEN)
    analysispath = tables.StringCol(MAXSTRLEN)
Esempio n. 9
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class Particle(tables.IsDescription):
    """This class defines a table record.
    """

    lati = tables.IntCol(pos=0)
    #    longi       = IntCol(pos=1)
    Time = tables.Time64Col(pos=2)
    pressure = tables.FloatCol(pos=3)
    ID = tables.StringCol(itemsize=10, pos=4)
    Int16 = tables.UIntCol(itemsize=4, pos=5)
    Int64 = tables.IntCol(itemsize=8, pos=6)
    Bool = tables.BoolCol(pos=7)
Esempio n. 10
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 def init_stats_table(self):
     if self.read_mode == 'w':
         try:
             self.db_main.remove_node('/', 'stats')
             print 'stats table dropped.'
         except tables.exceptions.NoSuchNodeError:
             print 'stats table not exist yet. nothing to initialize.'
         try:
             stats_desc = {
                 'train_uuid': tables.StringCol(32),
                 'pca': tables.IntCol(),
                 'ticker': tables.StringCol(10),
                 'model': tables.StringCol(3),
                 'kpi': tables.StringCol(15),
                 'accuracy': tables.FloatCol()
             }
             self.t_stats = self.db_main.create_table(
                 '/', 'stats', stats_desc)
             self.t_stats.cols.ticker.create_index()
             self.t_stats.cols.kpi.create_index()
             print 'statistics table created.'
         except tables.exceptions.NodeError:
             self.t_stats = self.db_main.get_node('/', 'stats')
             print 'stats table opened.'
     else:
         self.t_stats = self.db_main.get_node('/', 'stats')
         print 'stats table opened.'
Esempio n. 11
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 def init_portfolio_log(self):
     try:
         p_log_desc = {
             'sim_uuid': tables.StringCol(32),
             'index_t': tables.StringCol(10),
             'dix': tables.IntCol(),
             'ticker': tables.StringCol(10),
             'volume': tables.IntCol()
         }
         self.p_log = self.db_main.create_table('/', 'p_log', p_log_desc)
         self.p_log.cols.sim_uuid.create_index()
         self.p_log.cols.ticker.create_index()
         print 'portfolio log table created.'
     except tables.exceptions.NodeError:
         self.p_log = self.db_main.get_node('/', 'p_log')
         print 'portfolio log opened.'
Esempio n. 12
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 def __init__(self, file_name, table_name, col_defs):
     self._file = tables.open_file(file_name,
                                   mode='w',
                                   title='generated data')
     self._typemap = {'int': tables.IntCol(4), 'float': tables.Float64Col()}
     self._table = self._create_table(table_name, col_defs)
     self._row = self._table.row
Esempio n. 13
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def transpose_genotype(args, hdf_name):
    t = tables.open_file(args.outfolder + hdf_name, mode='r')
    data = t.root.data
    num_pat = data.shape[1]
    num_feat = data.shape[0]
    chunk = args.tcm // num_feat
    chunk = int(np.clip(chunk, 1, num_pat))
    f = tables.open_file(args.outfolder + '/genotype.h5', mode='w')
    f.create_earray(f.root,
                    'data',
                    tables.IntCol(), (0, num_feat),
                    expectedrows=num_pat,
                    filters=tables.Filters(complib='zlib', complevel=1))
    f.close()

    f = tables.open_file(args.outfolder + '/genotype.h5', mode='a')

    for pat in tqdm.tqdm(range(int(np.ceil(num_pat / chunk) + 1))):
        begins = pat * chunk
        tills = min(((pat + 1) * chunk), num_pat)
        a = np.array(data[:, begins:tills], dtype=int)
        a = a.T
        f.root.data.append(a)
    f.close()
    t.close()
    print("Completed", args.study_name)
Esempio n. 14
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 class TestDescription(tables.IsDescription):
     rid = tables.IntCol(pos=0)
     rcolor = tables.EnumCol(self.enum,
                             self.defaultName,
                             base=self.enumType,
                             shape=shape,
                             pos=1)
Esempio n. 15
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class FontGlyphData(tb.IsDescription):
    index = tb.IntCol(pos=1)
    charcode = tb.IntCol(pos=2)
    unichar = tb.StringCol(8, pos=3)
    offset_x = tb.Int16Col(pos=4)
    offset_y = tb.Int16Col(pos=5)
    width = tb.UInt8Col(pos=6)
    height = tb.UInt8Col(pos=7)
    atlas_x = tb.UInt16Col(pos=8)
    atlas_y = tb.UInt16Col(pos=9)
    atlas_w = tb.UInt16Col(pos=10)
    atlas_h = tb.UInt16Col(pos=11)
    tex_x1 = tb.Float32Col(pos=12)
    tex_y1 = tb.Float32Col(pos=13)
    tex_x2 = tb.Float32Col(pos=14)
    tex_y2 = tb.Float32Col(pos=15)
Esempio n. 16
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 def init_recommendation_table(self):
     if self.read_mode == 'w':
         try:
             self.db_main.remove_node('/', 'recommend')
             print 'recommendation table dropped.'
         except tables.exceptions.NoSuchNodeError:
             print 'recommendation table does not exist yet. nothing to initialize.'
         try:
             recommend_desc = {
                 'sim_uuid': tables.StringCol(32),
                 'dix': tables.IntCol(),
                 'symbol': tables.StringCol(10),
                 'tradeTx': tables.StringCol(10),
                 'tradePriceMin': tables.FloatCol(),
                 'tradePriceMid': tables.FloatCol(),
                 'tradePriceMax': tables.FloatCol(),
                 'trade12dd': tables.IntCol(),
                 'tradeIdxPct': tables.FloatCol(),
                 'tradeDate': tables.StringCol(10),
                 'tradeDateCopy': tables.StringCol(10),
                 'offsetTraining': tables.IntCol(),
                 'minTraining': tables.IntCol(),
                 'modelAccuracy': tables.FloatCol()
             }
             self.t_recommend = self.db_main.create_table(
                 '/', 'recommend', recommend_desc)
             self.t_recommend.cols.sim_uuid.create_index()
             self.t_recommend.cols.dix.create_index()
             print 'recommendation table created.'
         except tables.exceptions.NodeError:
             self.t_recommend = self.db_main.get_node('/', 'recommend')
             print 'recommendation table opened.'
     else:
         try:
             self.t_recommend = self.db_main.get_node('/', 'recommend')
             print 'recommendation table opened.'
         except tables.exceptions.NoSuchNodeError:
             recommend_desc = {
                 'sim_uuid': tables.StringCol(32),
                 'dix': tables.IntCol(),
                 'symbol': tables.StringCol(10),
                 'tradeTx': tables.StringCol(10),
                 'tradePriceMin': tables.FloatCol(),
                 'tradePriceMid': tables.FloatCol(),
                 'tradePriceMax': tables.FloatCol(),
                 'trade12dd': tables.IntCol(),
                 'tradeIdxPct': tables.FloatCol(),
                 'tradeDate': tables.StringCol(10),
                 'tradeDateCopy': tables.StringCol(10),
                 'offsetTraining': tables.IntCol(),
                 'minTraining': tables.IntCol(),
                 'modelAccuracy': tables.FloatCol()
             }
             self.t_recommend = self.db_main.create_table(
                 '/', 'recommend', recommend_desc)
             self.t_recommend.cols.sim_uuid.create_index()
             self.t_recommend.cols.dix.create_index()
Esempio n. 17
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class Particle(tb.IsDescription):
    name = tb.StringCol(16)  # 16-character String
    idnumber = tb.Int64Col()  # Signed 64-bit integer
    ADCcount = tb.UInt16Col()  # Unsigned short integer
    TDCcount = tb.UInt8Col()  # Unsigned byte
    grid_i = tb.Int32Col()  # Integer
    grid_j = tb.IntCol()  # Integer (equivalent to Int32Col)
    pressure = tb.Float32Col()  # Float (single-precision)
    energy = tb.FloatCol()  # Double (double-precision)
Esempio n. 18
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class Particle(tables.IsDescription):
    """Description of a table record."""
    name = tables.StringCol(16, pos=1)
    lati = tables.IntCol(pos=2)
    vector = tables.Int32Col(shape=(200, ), pos=3)
    matrix1 = tables.Int32Col(shape=(2, 200), pos=4)
    matrix2 = tables.FloatCol(shape=(100, 2), pos=5)
    matrix3 = tables.FloatCol(shape=(10, 100, 2), pos=5)
    matrix4 = tables.FloatCol(shape=(2, 10, 100, 2), pos=5)
Esempio n. 19
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class TableDescription(tables.IsDescription):
	"""Describe the fields in an HDF5 table.
	
	Attributes:
		cid: IntCol
			An in teger field for the unique call id numbers
		wid: IntCol
			An integer field for the whale id numbers. Each whale has an unique identifier
		sp: IntCol
			An integer column for the species code. 1=killer whale, 2=Pilot whale
		data: Float32Col
			A float32 2d array for the spectral representation of each whale call
	"""
			
            cid = tables.IntCol()
            wid = tables.IntCol()
            sp = tables.IntCol()
            data = tables.Float32Col((200,200))
Esempio n. 20
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 def init_noTrade(self):
     try:
         desc = {'ticker': tables.StringCol(10), 'dix': tables.IntCol()}
         self.noTrade = self.db_main.create_table('/', 'noTrade', desc)
         self.noTrade.cols.ticker.create_index()
         self.noTrade.cols.dix.create_index(kind='full')
         print 'noTrade table created.'
     except tables.exceptions.NodeError:
         noTrade = self.db_main.get_node('/', 'noTrade')
         print 'noTrade opened.'
Esempio n. 21
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 def init_simulation_log(self):
     try:
         perf_desc = {
             'sim_uuid': tables.StringCol(32),
             'gamma': tables.FloatCol(),
             'alpha': tables.FloatCol(),
             'simrun': tables.IntCol(),
             'dix': tables.IntCol(),
             'index': tables.StringCol(10),
             'p_value': tables.FloatCol(),
             'cash': tables.FloatCol(),
             'i_value': tables.IntCol()
         }
         self.s_log = self.db_main.create_table('/', 's_log', perf_desc)
         self.s_log.cols.dix.create_index(kind='full')
         print 'simulation log table created.'
     except tables.exceptions.NodeError:
         s_log = self.db_main.get_node('/', 's_log')
         print 'simulation log opened.'
Esempio n. 22
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class Metadata(tables.IsDescription):
    jno = tables.IntCol()
    pco = tables.IntCol()

    setup = tables.IntCol()
    camera = tables.IntCol()
    person = tables.IntCol()
    replication = tables.IntCol()
    action = tables.IntCol()
Esempio n. 23
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 def init_transaction_log(self):
     try:
         t_log_desc = {
             'sim_uuid': tables.StringCol(32),
             'dix': tables.IntCol(),
             'ticker': tables.StringCol(10),
             'tx': tables.StringCol(10),
             'price': tables.FloatCol(),
             'volume': tables.IntCol(),
             'close': tables.FloatCol(),
             'cash_before': tables.FloatCol(),
             'cash_after': tables.FloatCol(),
             '12dd': tables.IntCol()
         }
         self.t_log = self.db_main.create_table('/', 't_log', t_log_desc)
         self.t_log.cols.sim_uuid.create_index()
         self.t_log.cols.ticker.create_index()
         print 'transaction log table created.'
     except tables.exceptions.NodeError:
         self.t_log = self.db_main.get_node('/', 't_log')
         print 'transaction log opened.'
Esempio n. 24
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class SongMetaData(tables.IsDescription):
    """
    Class to hold the metadata of one song
    """
    artist_name = tables.StringCol(MAXSTRLEN)
    artist_id = tables.StringCol(32)
    artist_mbid = tables.StringCol(40)
    artist_playmeid = tables.IntCol()
    artist_7digitalid = tables.IntCol()
    analyzer_version = tables.StringCol(32)
    genre = tables.StringCol(MAXSTRLEN)
    release = tables.StringCol(MAXSTRLEN)
    release_7digitalid = tables.IntCol()
    title = tables.StringCol(MAXSTRLEN)
    artist_familiarity = tables.Float64Col()
    artist_hotttnesss = tables.Float64Col()
    song_id = tables.StringCol(32)
    song_hotttnesss = tables.Float64Col()
    artist_latitude = tables.Float64Col()
    artist_longitude = tables.Float64Col()
    artist_location = tables.StringCol(MAXSTRLEN)
    track_7digitalid = tables.IntCol()
    # ARRAY INDICES
    idx_similar_artists = tables.IntCol()
    idx_artist_terms = tables.IntCol()
Esempio n. 25
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def transpose_genotype_job(job_begins,
                           job_tills,
                           job_n,
                           study_name,
                           outfolder,
                           tcm,
                           comp_level=9):
    print("job_n:", job_n, 'job_begins:', job_begins, 'job_tills:', job_tills)
    hdf5_name = '/' + study_name + '_step4_genotype_selected_variants.h5'
    if (os.path.exists(outfolder + hdf5_name)):
        t = tables.open_file(outfolder + hdf5_name, mode='r')
    else:
        print('using',
              outfolder + study_name + '_step3_genotype_no_missing.h5')
        t = tables.open_file(outfolder + study_name +
                             '_step3_genotype_no_missing.h5',
                             mode='r')

    data = t.root.data
    num_pat = data.shape[1]
    num_feat = data.shape[0]
    chunk = tcm // num_feat
    chunk = int(np.clip(chunk, 1, num_pat))
    print("chuncksize =", chunk)

    f = tables.open_file(outfolder + study_name +
                         '_step5_genotype_transposed_' + str(job_n) + '.h5',
                         mode='w')
    f.create_earray(f.root,
                    'data',
                    tables.IntCol(), (0, num_feat),
                    expectedrows=num_pat,
                    filters=tables.Filters(complib='zlib',
                                           complevel=comp_level))
    f.close()
    n_in_job = job_tills - job_begins
    f = tables.open_file(outfolder + study_name +
                         '_step5_genotype_transposed_' + str(job_n) + '.h5',
                         mode='a')

    for subjects in tqdm.tqdm(range(int(np.ceil(n_in_job / chunk) + 1))):
        begins = job_begins + subjects * chunk
        tills = min((job_begins + (subjects + 1) * chunk), job_tills)
        a = np.array(data[:, begins:tills], dtype=np.int8)
        a = a.T
        f.root.data.append(a)
    f.close()
    t.close()
    print("Completed", job_n)
Esempio n. 26
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    def saveWorld(self):
        '''TODO: check if we are currently working on a world, save it.
        if not, we ignore the command. '''
        self.updateWorld()
        alreadyTried = False
        if not self.fileLocation and not alreadyTried:
            alreadyTried = True
            self.saveWorldAs()
        else:
            h5Filter = tables.Filters(complevel=9,
                                      complib='zlib',
                                      shuffle=True,
                                      fletcher32=True)
            h5file = tables.openFile(self.fileLocation,
                                     mode='w',
                                     title="worldData",
                                     filters=h5Filter)

            # store our numpy datasets
            for k in self.world:
                if self.world[k] is not None:
                    atom = tables.Atom.from_dtype(self.world[k].dtype)
                    shape = self.world[k].shape
                    cArray = h5file.createCArray(h5file.root, k, atom, shape)
                    cArray[:] = self.world[k]

            # store our world settings
            pyDict = {
                'key': tables.StringCol(itemsize=40),
                'value': tables.IntCol(),
            }
            settingsTable = h5file.createTable('/', 'settings', pyDict)

            settings = dict(
                width=self.mapSize[0],
                height=self.mapSize[1],
                algorithm=self.algorithm,
                roughness=self.roughness,
                avgLandmass=self.avgLandmass,
                avgElevation=self.avgElevation,
                hasMountains=self.hasMountains,
                hemisphere=self.hemisphere,
            )

            settingsTable.append(settings.items())
            settingsTable.cols.key.createIndex()  # create an index

            h5file.close()
            del h5file, h5Filter
Esempio n. 27
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    def init_parameter_table(self):
        if self.read_mode == 'w':
            try:
                self.db_main.remove_node('/', 'parameter')
                print 'paramter table dropped.'
            except tables.exceptions.NoSuchNodeError:
                print 'parameter table not exist yet. nothing to initialize.'
            try:
                parameter_desc = {
                    'train_uuid': tables.StringCol(32),
                    'pca': tables.IntCol(),
                    'ticker': tables.StringCol(10),
                    'model': tables.StringCol(3),
                    'kpi': tables.StringCol(15),
                    'kernel': tables.StringCol(10),
                    'C': tables.IntCol(),
                    'max_depth': tables.IntCol(),
                    'n_neighbors': tables.IntCol(),
                    'weights': tables.StringCol(10),
                    'algorithm': tables.StringCol(10)
                }

                self.t_parameter = self.db_main.create_table(
                    '/', 'parameter', parameter_desc)
                self.t_parameter.cols.train_uuid.create_index()
                self.t_parameter.cols.pca.create_index()
                self.t_parameter.cols.ticker.create_index()
                self.t_parameter.cols.model.create_index()
                self.t_parameter.cols.kpi.create_index()
                print 'parameter table created.'
            except tables.exceptions.NodeError:
                self.t_parameter = self.db_main.get_node('/', 'parameter')
                print 'parameter table opened.'
        else:
            self.t_parameter = self.db_main.get_node('/', 'parameter')
            print 'parameter table opened.'
Esempio n. 28
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def transpose_genotype(args):
    step4_name = args.genotype + '/' + args.study_name + '_step4_genotype_selected_variants.h5'
    step3_name = args.genotype + '/' + args.study_name + '_step3_genotype_no_missing.h5'
    step2_name = args.genotype + '/' + args.study_name + '_step2_merged_genotype.h5'

    if (os.path.exists(step4_name)):
        t = tables.open_file(step4_name, mode='r')
    elif (os.path.exists(step3_name)):
        print('WARNING skipped step 4, all variants are used: using',
              step3_name)
        t = tables.open_file(step3_name, mode='r')
    elif (os.path.exists(step2_name)):
        print(
            'WARNING skipped step 3, only skip this step if you are sure there are no missing variants (i.e: genotype only has values 0,1,2)',
            step2_name)
        t = tables.open_file(step2_name, mode='r')
    else:
        print('no valid genotype found')

    data = t.root.data
    num_pat = data.shape[1]
    num_feat = data.shape[0]
    chunk = args.tcm // num_feat
    chunk = int(np.clip(chunk, 1, num_pat))
    print("chuncksize =", chunk)

    f = tables.open_file(args.outfolder + '/genotype.h5', mode='w')
    f.create_earray(f.root,
                    'data',
                    tables.IntCol(), (0, num_feat),
                    expectedrows=num_pat,
                    filters=tables.Filters(complib='zlib',
                                           complevel=args.comp_level))
    f.close()

    f = tables.open_file(args.outfolder + '/genotype.h5', mode='a')

    for pat in tqdm.tqdm(range(int(np.ceil(num_pat / chunk) + 1))):
        begins = pat * chunk
        tills = min(((pat + 1) * chunk), num_pat)
        a = np.array(data[:, begins:tills], dtype=np.int8)
        a = a.T
        f.root.data.append(a)
    f.close()
    t.close()
    print("Completed", args.study_name)
    print("You can delete all other h5 files if genotype.h5 is correct")
    args.outfolder = args.genotype
Esempio n. 29
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 def init_sp500Changes(self):
     try:
         desc = {
             'ticker': tables.StringCol(10),
             'dix': tables.IntCol(),
             'sector': tables.StringCol(8),
             'change': tables.StringCol(10)
         }
         self.sp500Changes = self.db_main.create_table(
             '/', 'sp500Changes', desc)
         self.sp500Changes.cols.ticker.create_index()
         self.sp500Changes.cols.dix.create_index(kind='full')
         print 'sp500Changes table created.'
     except tables.exceptions.NodeError:
         sp500Changes = self.db_main.get_node('/', 'sp500Changes')
         print 'sp500Changes opened.'
Esempio n. 30
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 def init_ticker_ids_table(self):
     if self.read_mode == 'w':
         try:
             ticker_desc = {
                 'ticker': tables.StringCol(10),
                 'id': tables.IntCol()
             }
             self.t_ticker_ids = self.db_main.create_table(
                 '/', 'ticker_symbols', ticker_desc)
             self.t_ticker_ids.cols.ticker.create_index()
             print 'ticker ids table created.'
         except tables.exceptions.NodeError:
             self.t_ticker_ids = self.db_main.get_node(
                 '/', 'ticker_symbols')
             print 'ticker symbols table opened.'
     else:
         self.t_ticker_ids = self.db_main.get_node('/', 'ticker_symbols')
         print 'ticker symbols table opened.'