StockFetcher Forums · Indicators and Measures · Inverse Fisher Transform (RSI)<< >>Post Follow-up
stockfetcher
963 posts
msg #31818
4/21/2004 9:05:20 AM

Inverse Fisher Transform (RSI)

Parameters RSIPeriod
Weighted MA Period
Usage Inverse Fisher Transform(5,9)
Inverse Fisher(5,9)
IFT(5,9)
Description Developed by John Ehlers, the RSI-based inverse Fisher Transform is used to help clearly define trigger points. First, a specified length RSI is computed and adjusted so that the values are centered around zero. The inverse transform is then applied to these values. The inverse transform is effectively:
e^(2x) - 1
----------
e^(2x) + 1

The author then recommends smoothing this value using a weighted moving average. StockFetcher smooths this value using a weighted simple moving average of the length specified in the second parameter.

Resulting values range between 1.0 and -1.0 with bullish triggers occurring at crossovers of -0.5 and bearish triggers of 0.5.

Examples
Fetcher[show stocks where IFT(5,9) crossed above -0.5 and IFT(5,9) 1 day ago had been below -0.5 for the last 2 weeks]


Fetcher[show stocks where IFT(5,9) crossed below 0.5 and IFT(5,9) 1 day ago had been above 0.5 for the last 2 weeks and IFT(5,9) 2 week high is above 0.950]



StockFetcher Forums · Indicators and Measures · Inverse Fisher Transform (RSI)<< >>Post Follow-up

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