Detail: MemoryDisplay: Constructor

MemoryDisplay.__init__(frame)[source]

Initialize an instance with a Frame of byte counts.

>>> f = sf.Frame.from_fields(((10, 2, 8, 3), (False, True, True, False), ('1517-01-01', '1517-04-01', '1517-12-31', '1517-06-30')), columns=('a', 'b', 'c'), dtypes=dict(c=np.datetime64), name='x')
>>> f
<Frame: x>
<Index>    a       b      c               <<U1>
<Index>
0          10      False  1517-01-01
1          2       True   1517-04-01
2          8       True   1517-12-31
3          3       False  1517-06-30
<int64>    <int64> <bool> <datetime64[D]>
>>> f.memory
        L    Lu    LM   LMu   LMD  LMDu  R    Ru    RM   RMu   RMD  RMDu
Name    50   B     50   B     50   B     50   B     50   B     50   B
Index   236  B     252  B     124  B     8.34 KB    284  B     156  B
Columns 800  B     832  B     576  B     8.89 KB    856  B     600  B
Blocks  748  B     796  B     412  B     748  B     796  B     412  B
Total   1.82 KB    1.91 KB    1.16 KB    9.93 KB    1.97 KB    1.22 KB

classmethod MemoryDisplay.from_any(obj, label_component_pairs=())[source]

Given any slotted object, return a MemoryDisplay instance.

>>> f = sf.Frame.from_fields(((10, 2, 8, 3), (False, True, True, False), ('1517-01-01', '1517-04-01', '1517-12-31', '1517-06-30')), columns=('a', 'b', 'c'), dtypes=dict(c=np.datetime64), name='x')
>>> f
<Frame: x>
<Index>    a       b      c               <<U1>
<Index>
0          10      False  1517-01-01
1          2       True   1517-04-01
2          8       True   1517-12-31
3          3       False  1517-06-30
<int64>    <int64> <bool> <datetime64[D]>
>>> sf.MemoryDisplay.from_any(f.index)
      L   Lu    LM  LMu   LMD LMDu  R    Ru    RM  RMu   RMD RMDu
Total 236 B     252 B     124 B     8.34 KB    284 B     156 B

MemoryDisplay: Constructor | Exporter | Display