Python pandas.core.common.sentinel_factory() Examples

The following are 6 code examples of pandas.core.common.sentinel_factory(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module pandas.core.common , or try the search function .
Example #1
Source File: style.py    From Splunking-Crime with GNU Affero General Public License v3.0 6 votes vote down vote up 
def _get_level_lengths(index):
    """
    Given an index, find the level lenght for each element.

    Result is a dictionary of (level, inital_position): span
    """
    sentinel = sentinel_factory()
    levels = index.format(sparsify=sentinel, adjoin=False, names=False)

    if index.nlevels == 1:
        return {(0, i): 1 for i, value in enumerate(levels)}

    lengths = {}

    for i, lvl in enumerate(levels):
        for j, row in enumerate(lvl):
            if not get_option('display.multi_sparse'):
                lengths[(i, j)] = 1
            elif row != sentinel:
                last_label = j
                lengths[(i, last_label)] = 1
            else:
                lengths[(i, last_label)] += 1

    return lengths
Example #2
Source File: style.py    From elasticintel with GNU General Public License v3.0 6 votes vote down vote up 
def _get_level_lengths(index):
    """
    Given an index, find the level lenght for each element.

    Result is a dictionary of (level, inital_position): span
    """
    sentinel = sentinel_factory()
    levels = index.format(sparsify=sentinel, adjoin=False, names=False)

    if index.nlevels == 1:
        return {(0, i): 1 for i, value in enumerate(levels)}

    lengths = {}

    for i, lvl in enumerate(levels):
        for j, row in enumerate(lvl):
            if not get_option('display.multi_sparse'):
                lengths[(i, j)] = 1
            elif row != sentinel:
                last_label = j
                lengths[(i, last_label)] = 1
            else:
                lengths[(i, last_label)] += 1

    return lengths
Example #3
Source File: style.py    From recruit with Apache License 2.0 5 votes vote down vote up 
def _get_level_lengths(index, hidden_elements=None):
    """
    Given an index, find the level length for each element.

    Optional argument is a list of index positions which
    should not be visible.

    Result is a dictionary of (level, inital_position): span
    """
    sentinel = com.sentinel_factory()
    levels = index.format(sparsify=sentinel, adjoin=False, names=False)

    if hidden_elements is None:
        hidden_elements = []

    lengths = {}
    if index.nlevels == 1:
        for i, value in enumerate(levels):
            if(i not in hidden_elements):
                lengths[(0, i)] = 1
        return lengths

    for i, lvl in enumerate(levels):
        for j, row in enumerate(lvl):
            if not get_option('display.multi_sparse'):
                lengths[(i, j)] = 1
            elif (row != sentinel) and (j not in hidden_elements):
                last_label = j
                lengths[(i, last_label)] = 1
            elif (row != sentinel):
                # even if its hidden, keep track of it in case
                # length >1 and later elements are visible
                last_label = j
                lengths[(i, last_label)] = 0
            elif(j not in hidden_elements):
                lengths[(i, last_label)] += 1

    non_zero_lengths = {
        element: length for element, length in lengths.items() if length >= 1}

    return non_zero_lengths
Example #4
Source File: style.py    From predictive-maintenance-using-machine-learning with Apache License 2.0 5 votes vote down vote up 
def _get_level_lengths(index, hidden_elements=None):
    """
    Given an index, find the level length for each element.

    Optional argument is a list of index positions which
    should not be visible.

    Result is a dictionary of (level, inital_position): span
    """
    sentinel = com.sentinel_factory()
    levels = index.format(sparsify=sentinel, adjoin=False, names=False)

    if hidden_elements is None:
        hidden_elements = []

    lengths = {}
    if index.nlevels == 1:
        for i, value in enumerate(levels):
            if(i not in hidden_elements):
                lengths[(0, i)] = 1
        return lengths

    for i, lvl in enumerate(levels):
        for j, row in enumerate(lvl):
            if not get_option('display.multi_sparse'):
                lengths[(i, j)] = 1
            elif (row != sentinel) and (j not in hidden_elements):
                last_label = j
                lengths[(i, last_label)] = 1
            elif (row != sentinel):
                # even if its hidden, keep track of it in case
                # length >1 and later elements are visible
                last_label = j
                lengths[(i, last_label)] = 0
            elif(j not in hidden_elements):
                lengths[(i, last_label)] += 1

    non_zero_lengths = {
        element: length for element, length in lengths.items() if length >= 1}

    return non_zero_lengths
Example #5
Source File: style.py    From vnpy_crypto with MIT License 4 votes vote down vote up 
def _get_level_lengths(index, hidden_elements=None):
    """
    Given an index, find the level length for each element.
    Optional argument is a list of index positions which
    should not be visible.

    Result is a dictionary of (level, inital_position): span
    """
    sentinel = com.sentinel_factory()
    levels = index.format(sparsify=sentinel, adjoin=False, names=False)

    if hidden_elements is None:
        hidden_elements = []

    lengths = {}
    if index.nlevels == 1:
        for i, value in enumerate(levels):
            if(i not in hidden_elements):
                lengths[(0, i)] = 1
        return lengths

    for i, lvl in enumerate(levels):
        for j, row in enumerate(lvl):
            if not get_option('display.multi_sparse'):
                lengths[(i, j)] = 1
            elif (row != sentinel) and (j not in hidden_elements):
                last_label = j
                lengths[(i, last_label)] = 1
            elif (row != sentinel):
                # even if its hidden, keep track of it in case
                # length >1 and later elements are visible
                last_label = j
                lengths[(i, last_label)] = 0
            elif(j not in hidden_elements):
                lengths[(i, last_label)] += 1

    non_zero_lengths = {}
    for element, length in lengths.items():
        if(length >= 1):
            non_zero_lengths[element] = length

    return non_zero_lengths
Example #6
Source File: format.py    From Computable with MIT License 4 votes vote down vote up 
def _write_hierarchical_rows(self, fmt_values, indent):
        template = 'rowspan="%d" valign="top"'

        frame = self.frame
        ncols = min(len(self.columns), self.max_cols)
        nrows = min(len(self.frame), self.max_rows)

        truncate = (len(frame) > self.max_rows)

        idx_values = frame.index[:nrows].format(sparsify=False, adjoin=False,
                                                names=False)
        idx_values = lzip(*idx_values)

        if self.fmt.sparsify:

            # GH3547
            sentinel = com.sentinel_factory()
            levels = frame.index[:nrows].format(sparsify=sentinel,
                                                adjoin=False, names=False)
            # Truncate row names
            if truncate:
                levels = [lev[:self.max_rows] for lev in levels]

            level_lengths = _get_level_lengths(levels, sentinel)

            for i in range(min(len(frame), self.max_rows)):
                row = []
                tags = {}

                sparse_offset = 0
                j = 0
                for records, v in zip(level_lengths, idx_values[i]):
                    if i in records:
                        if records[i] > 1:
                            tags[j] = template % records[i]
                    else:
                        sparse_offset += 1
                        continue

                    j += 1
                    row.append(v)

                row.extend(fmt_values[j][i] for j in range(ncols))
                self.write_tr(row, indent, self.indent_delta, tags=tags,
                              nindex_levels=len(levels) - sparse_offset)
        else:
            for i in range(len(frame)):
                idx_values = list(zip(*frame.index.format(sparsify=False,
                                                          adjoin=False,
                                                          names=False)))
                row = []
                row.extend(idx_values[i])
                row.extend(fmt_values[j][i] for j in range(ncols))
                self.write_tr(row, indent, self.indent_delta, tags=None,
                              nindex_levels=frame.index.nlevels)

        # Truncation markers (...)
        if truncate:
            row = ([''] * frame.index.nlevels) + (['...'] * ncols)
            self.write_tr(row, indent, self.indent_delta, tags=None)