Quant Python

Purged Cross-Validation Splitter

Premium
Difficulty

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"xxx xxx'x xxx xxxxxxx xxxx-xxxxxx xxxx xxxx xxxxxx xxxxx?" xx x xxxxxxxx xxxxxxxxxxx xxxxxxxx xx xxxxxxxxxx xxxxx, xxx xxx xxxxxx xxxxxx xxxxx xxx xxxxxx xxxx xxxxxxxx x-xxxx: xxxxxxxxxx xxxxxx, x xxxxx xxx xxxxxxxxxxx xxxxxx, xx xxxxxxx xxx xxxxxx xxxxxxxxxxx. xxxx xxxxxxx xxxxxx xxxx xxxxxxxx.

xxxxxxxxx xxxxxx_xxxxx(x, x, xxxxxxx, xxxxxxx).

  • x: xxx xxxxxx xx xxxx-xxxxxxx xxxxxxxxxxxx, xxxxxxx x..x-x. xxxx xxxxxxxxxxx x xxxxxxx x xxxxx xxxxxx [x, x + xxxxxxx].
  • x: xxx xxxxxx xx xxxxx.
  • xxxxxxx: xxx xxxxx xxxxxxx (( xxx x )).
  • xxxxxxx: xxxxx xxxxxxx xxxxxxxx xxxx xxxxxxxx xxxxx xxxx xxxx xxxxx (( xxx x )).

xxxxx xxx xxxxxxx xxxx x xxxxxxxxxx xxxx xxxxxx xx xxxx xxxxx, xx xxxxxx xx xxxxxxxx: x // x xxxx, xxxx xxx xxxxx x % x xxxxxx xxxxxx xxx xxxxx. xxx xxxx xxxxx, xxx xxxxxxxx xxx xx xxxxx xxxxx xxxxxx xxxxx xx xxx xxxxx

[ [,x_x - xxxxxxx, x_x + xxxxxxx + xxxxxxx,] ]

xxxxx ( x_x, x_x ) xxx xxx xxxxx'x xxxxx xxx xxxx xxxxx. xxx xxxxx xxx xxxxxx xxx xxxxxxxx xxxxxxxxxxxx xxxxx xxxxx xxxxxxx xxxxx xxxx xxx xxxx xxxxx; xxx xxxxx xxx xxxxxx xxxxx xxxxxxx xxx xx xxx xxxxx'x xxx xxxx xxx xxxxxxx xxxxxx.

xxxxxx x xxxx xx x xxxxxx (xxxxx, xxxx), xxxx x xxxxxx xxxx xx xxxxxxx, xx xxxxx xxxxx.

xxxxxxxx

xxxxxx_xxxxx(xx, x, x, x)
# [([x, x, x, x], [x, x, x, x, x]), ([x, x, x, x], [x, x, x, x, x])]

xxxxxx_xxxxx(x, x, x, x)
# [([x, x, x], [x, x]), ([x, x, x], [x, x]), ([x, x, x, x], [x, x])]

xxxx xxx xxxxx xxxxxxx xx xxxx xxxx, xxxxxxx xxx xxx-xx-xxxx xxx xxx xxxxxx xxxxxxx. xxxx xxx xxxxx [x..x]: xxx xxxxx'x xxxx xxxxx xxxxxx xx [x, x], xx xx xxxxxxx xxxxx x, xxx xxxxx x xx xxxxxx xxxx xxxxxxxx xxxx xxxxxx xx xxxx xxxxxxx xxx xxxxx. xxxx xxx xxxxx [x..x]: xxxxxxxxxxx x'x xxxxx xxxxxx [x, x] xxxxxxx xxxx xxx xxxxx, xx xxxxx x xx xxxxxx xxxx xxxx xxxx. xxxx xxxxxxxxxx xx xxxxxxx xxx xxx xx xxx xxxxxx xxxxx xx xxx xxxxxxx xxxxx.

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Language: Pythonpurged_folds

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