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projs:clans:docs:prediction_lib_utilanalz_smooth [2014/01/21 09:58] cheungzeecn created |
projs:clans:docs:prediction_lib_utilanalz_smooth [2014/01/21 09:59] (current) cheungzeecn |
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A simple filter filter a list consists of list(like [0, 1] for x=0, y=1), takes the noises off. | A simple filter filter a list consists of list(like [0, 1] for x=0, y=1), takes the noises off. | ||
===== Paramters ===== | ===== Paramters ===== | ||
- | - x_y list of lists, | + | - x_y list of lists, x_y is a list like [[0, 0],[1, 1],] |
- | x_y is a list like [[0, 0],[1, 1],] | + | |
- threshold int, for threshold value, if the abs(value, other_value) more than threshold, the value may be a noise | - threshold int, for threshold value, if the abs(value, other_value) more than threshold, the value may be a noise | ||
- poolN int, how long the polling poll is. For poolN=10, the function would look forward 10 items, back 10 items, than the items poll according to the parameter threshold. If the agreement more than a half, this point is not a noise. | - poolN int, how long the polling poll is. For poolN=10, the function would look forward 10 items, back 10 items, than the items poll according to the parameter threshold. If the agreement more than a half, this point is not a noise. | ||
+ | |||
===== Return ===== | ===== Return ===== | ||
- a list that will return a smoothed list of data. | - a list that will return a smoothed list of data. | ||
===== Detail Information ===== | ===== Detail Information ===== | ||
+ | <code> | ||
+ | |||
+ | a = | ||
+ | [ | ||
+ | |||
+ | [6, 6], | ||
+ | [7, 7], | ||
+ | [8, 8], | ||
+ | [9, 9], | ||
+ | [10, 100], | ||
+ | [11, 11], | ||
+ | [12, 12], | ||
+ | [13, 13], | ||
+ | ] | ||
+ | |||
+ | smooth(a, int threshold=5, int poolN=3) | ||
+ | will return | ||
+ | [ | ||
+ | [6, 6], | ||
+ | [7, 7], | ||
+ | [8, 8], | ||
+ | [9, 9], | ||
+ | [11, 11], | ||
+ | [12, 12], | ||
+ | [13, 13], | ||
+ | ] | ||
+ | |||
+ | </code> | ||
+ | |||
===== Changelog ===== | ===== Changelog ===== | ||
newly built, 2012-01-21 | newly built, 2012-01-21 |