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    42   B     42   B     42   B     42    B     42   B     42   B
Index   292  B     308  B     180  B     8.39  KB    340  B     212  B
Columns 856  B     888  B     632  B     8.95  KB    912  B     656  B
Blocks  748  B     796  B     412  B     748   B     796  B     412  B
Total   1.93 KB    2.02 KB    1.27 KB    10.04 KB    2.08 KB    1.33 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 292 B     308 B     180 B     8.39 KB    340 B     212 B

MemoryDisplay: Constructor | Exporter | Display