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I need a poke in the head...
I wanted a version of the MACD histogram that can take arrays for its three
parameters. I used the array-capable version of EMA provided by tomasz, but
I'm not getting the same results as with the native EMA function, even with
static numbers as parameters. (I said I was doing this to use arrays, but
since even static numbers don't work right, I used them here for
simplicity.) oddly enough, the results are the same using tomasz's EMAx the
first two times, but using it the third time causes a difference. that's the
one marked with '<<< HERE <<<' below.
what's wrong with this picture?
here's the code:
-----------------
function EMAx(array, period) { // use for EMA when period is an array
return AMA(array, 2 / (period + 1));
}
function MACDHistogram() {
if(using_arrays) {
m = EMAx(c, 12) - EMAx(c, 26);// MACD line
s = m - EMAx(m, 9); // signal line; <<< HERE <<<
} else {
m = EMA(c, 12) - EMA(c, 26);
s = m - EMA(m, 9);
}
hist = m - s; // histogram
return hist;
}
-----------------
thanks,
dave
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