Subject: Re: GTR1: rrs vs. rsi
What is the difference between rrs(regression relative strength) and rsi(Relative Strength Index)?

RRS uses all data points between (today) and (1 year ago), and builds a least-squares regression line from them. It's an open-ended number that's higher when the trend is a gain.

RSI is a kind of exponential-average comparison of gains and loss days. As such, it uses only (today) and its own accumulators. It's a range-bound number (typically 0 to 100) that is nearer the top as gains exceed losses.

Which one does the simple relative strength calculation:
"price(today) / price(1 year ago)"

Nether. RSS is at least a different measure of the same general idea.

- Jamie