metastock-like functions: barssince(), vauewhen()

[Forex Trader]

ValueWhen


maestrade 29.05.05 00:54

Suppose an event like : RSI crossed over 70.
You want to know what the High was at that time.

In Metastock, you would just write :
ValueWhen(1,Cross(RSI,70),High)

where 1 is the first occurence in the past

The graphic representation of this indicator is :
looping from i=0 to i=Bars
if Cross(RSI,70) True Then Buffer = High
Else Buffer[i] = Buffer[i+1]

very easy to do in Excel

just hell in metaquotes

it's too unfortunate. who has a clue about this indicator ValueWhen ?

Thanks

barssince(), vauewhen()

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metastock-like functions:
since it costed me quite some time to figure out a self-made metastock-like function, I think it might be valuble for some people to have the function code. Therefore I decide to post the code here.

barssince() function:

int barsSince() { bool cond;
//by suffic369, pancwk
int bars=Bars;
datetime prevtime=0;
if( prevtime == Time[0]) return(0);
prevtime = Time[0];

for (int i=0;i<=bars;i++) {
if ( cond ) {
int barPos=i;
break;
}
}
if (barPos<bars) return(barPos);
else return(-1);
}

valuewhen(): if you know the bar position,it is easy to know the value of whatever you want.