Calculating slope & percentage...

[funk101]

1. Can anyone help with the formula for calculating the slope of a line? ie: EMA?

2. Also, the formula for calculating the percentage of one line from the next ie: MACD, how far is the fast line away from the slower line, percentage wise?

[NinjaTrader_Dierk]

on 2) MACD knows these lines/data series: Macd, Diff, Avg. If you want to find out the difference between e.g. Macd and Avg in percent you could something like:
100 * (Macd[0] - Avg[0]) / Macd[0];which will calculate how may percent the Macd is above or below the Avg.

[NinjaTrader_Dierk]

I should have added that Macd[0] could be zero. You then will get a zero divide exception. So you need to add some handling for that case like:
double val = 0;
if (Macd[0] != 0)
val = 100 * (Macd[0] - Avg[0]) / Macd[0];