less-than/greater-than vs HasCrossedBelow/HasCrossedAbove ?
less-than/greater-than vs HasCrossedBelow/HasCrossedAbove ?
25 Jun 2019, 06:44
Hi everyone:
What's "special" about the HasCrossedAbove or HasCrossedBelow methods on indicators as opposed to just doing a simple less-than or greater-than?
For example, in a bot assume I have 2 Exponential Moving Averages defined.
What's the difference between the following:
if (_ema1.Result.Last(0) < _ema2.Result.Last(0)) { }
//
//or
//
if (_ema1.Result.HasCrossedBelow(_ema2.Result, 0)) { }
Do the HasCrossedBelow/HasCrossedAbove methods have additional checks to ensure a more definitive crossing? Do they make a difference for a period other than zero?
In a nutshell, why would I ever want to use the latter as opposed to the former?
Thank you.
Replies
firemyst
25 Jun 2019, 09:58
RE:
Panagiotis Charalampous said:
Hi FireMyst,
if (_ema1.Result.HasCrossedBelow(_ema2.Result, i)) { }will check if there was a cross in the last i bars, from 0 to i. So essentially it implements a for loop. On the other hand
if (_ema1.Result.Last(i) < _ema2.Result.Last(i)) { }will only check the bars with index i.
Best Regards,
Panagiotis
Thanks @Panagiotis!
Your explanation is a lot better to me than what I read on the API page: https://ctrader.com/api/reference/functions/hascrossedbelow
@firemyst
firemyst
25 Jun 2019, 09:58
RE:
Panagiotis Charalampous said:
Hi FireMyst,
if (_ema1.Result.HasCrossedBelow(_ema2.Result, i)) { }will check if there was a cross in the last i bars, from 0 to i. So essentially it implements a for loop. On the other hand
if (_ema1.Result.Last(i) < _ema2.Result.Last(i)) { }will only check the bars with index i.
Best Regards,
Panagiotis
Thanks @Panagiotis!
Your explanation is a lot better to me than what I read on the API page: https://ctrader.com/api/reference/functions/hascrossedbelow
@firemyst
PanagiotisCharalampous
25 Jun 2019, 09:28
Hi FireMyst,
if (_ema1.Result.HasCrossedBelow(_ema2.Result, i)) { }will check if there was a cross in the last i bars, from 0 to i. So essentially it implements a for loop. On the other hand
if (_ema1.Result.Last(i) < _ema2.Result.Last(i)) { }will only check the bars with index i.
Best Regards,
Panagiotis
@PanagiotisCharalampous