Index
Symbols
.add method
working 261
.apply method
code, inspecting 567, 569, 570, 572, 574
performance 558, 560, 561, 562
performance, improving with Dask 562, 564, 565, 567
performance, improving with Pandarell 562, 564, 565, 567
performance, improving with Swifter 562, 564, 566, 567
working 561
.cummax method
working
.describe method 139
.groupby method
using, for DataFrames with DatetimeIndex
.idxmax method
working 279, 281
.join method 417, 419, 421, 424, 426
.merge method 417, 419, 421, 423, 426
A
aggregation
defining 286, 288
working 289
aggregation function
customizing, with *args parameter 307, 309, 310, 311
customizing, with **kwargs parameter 307, 309, 311
grouping with 303, 304, 305, 306
area charts
stacking, to discover trends 532, 533, 535, 536, 538
arithmetic operator
method 32
axis levels
renaming 384, 385, 386, 387, 388, 389
...