StockFetcher Forums · Filter Exchange · bollinger band divergence<< >>Post Follow-up
gpatte
6 posts
msg #97892
Ignore gpatte
12/8/2010 8:09:18 AM

Maybe I am not understanding the language to write this in but trying to create filter that will let me know if bollinger bands are converging whether they are going up or down something like this

upper bollinger band(20,2) 4 days ago - lower bollinger band(20,2) 4 days ago > upper bollinger band(20,2) 3 days ago - lower bollinger band(20,2) 3 days ago

and so on as many days as you want to see it coming together. I could use a little help if someone could point me in the right direction.

Kevin_in_GA
4,553 posts
msg #97896
Ignore Kevin_in_GA
12/8/2010 11:16:53 AM

Fetcher[

Bollinger Width(20,2) below Bollinger Width(20,2) 1 day ago

]



For this to have occurred for several days one can simply say

Fetcher[

Bollinger Width(20,2) decreasing for the last 5 days

]



StockFetcher Forums · Filter Exchange · bollinger band divergence<< >>Post Follow-up

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