StockFetcher Forums · General Discussion · ROC(13) versus ROC(13,13)<< >>Post Follow-up
budandann
14 posts
msg #97208
Ignore budandann
10/26/2010 8:42:10 PM

I am using ROC(13) in a stockfetcher filter. I use Thinkorswim for my charting and it has an ROC(13) but it calculates a different value than the one in Stockfetcher. The Thinkorswin indicator only gives me the choice of 1 parameter, that is, for example, 13. The Stockfetcher ROC() also accepts 1 parameter, ROC(13), but it also accepts 2 parameters, ROC(13,13), and both forms calculate the same value. I checked out the smROC(13,13) but it calculates an entirely different value than any of the ROC() indicators.
It appears that Stockfetcher is using some sort of ROC(13,13) but I can't find any definition of what and how the second parameter is being used.
Can anyone help me please?

four
3,995 posts
msg #97215
Ignore four
10/27/2010 10:51:52 AM

This measure also supports an optional period that is used for a smoothed version of the ROC.

http://forums.stockfetcher.com/sfforums/?q=view&fid=1006&tid=125&qrid=&isiframe=

so... a value to smooth?

budandann
14 posts
msg #97217
Ignore budandann
10/27/2010 11:44:29 AM

Thanks for the reply Four.

Actually, the link you provided referenced a volume ROC which does seem to provide for a 2nd, smoothing parameter.

It is still a bit puzzling that the plain, price ROC doesn't show up in the Indicators and Measures list in Stockfetcher.

ROC(13) returns the same value as ROC(13,x) where x is any integer in Stockfetcher but this is still a different value than I get for ROC(13) on the Thinkorswim chart.

four
3,995 posts
msg #97218
Ignore four
modified
10/27/2010 12:15:15 PM

more info...

http://yepher.com/stockfetcher/command.html

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http://help.yahoo.com/l/us/yahoo/finance/charts/chart-12.html

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http://www.marketvolume.com/technicalanalysis/roc.asp

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http://stockcharts.com/school/doku.php?id=chart_school:technical_indicators:introduction_to_tech

budandann
14 posts
msg #97220
Ignore budandann
modified
10/27/2010 5:29:50 PM

Thanks again, four, for the help.



four
3,995 posts
msg #97236
Ignore four
10/28/2010 8:36:09 PM

welcome

StockFetcher Forums · General Discussion · ROC(13) versus ROC(13,13)<< >>Post Follow-up

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