Undocumented Commands

[gansoro]

I have been trying to adapt the "getPrevOHLC.efs" forumla, which is found in the "OHLC" formula folder. I want it to show the Weekly High/Low.

Problem #1: The formula seems to work fine as long as I use the time template for "Equity RTH - West Coast." However, if I use the time template for "24 Hour," I get a value for two days/weeks previous to the current day, rather than one day/week previous to the current day. I trade index futures (ES, NQ) and like to look at the night session too (24 Hour), so this is a problem. Does anybody know how to fix the formula to get the correct result (previous day/week high/low using the 24 Hour time template)?

Problem #2: In trying to figure out the logic of the formula, I have run across several undocumented commands. Can anybody explain the following:

Line 34: getBarState()
Line 35: BARSTATE_ALLBARS
Line 56: "rawtime"
Line 60: RawTime.DAY

A line by line English language translation of the whole forumla would be ideal, but I would settle for an explanation of the above undocumented commands. Can anybody lend a hand?

[gspiker]

Hi,

I have a write up on getBarState()Here

It will include ALLBARS, as that is one possible return.

Also, there was a good description of rawtime Here

Hope this helps. If not ask further q's and I'll do my best to answer.

[zigzag]

esignal yahoo group

garth,

it looks like the yahoo esignal forum has been folded into the eSignal central group...

where would we find that info on rawtime you referred to?

thanks,

peter

[gspiker]

Hi,

The link works fine for me (yahoo groups hasn't been closed down yet), but here is part of the posting that is of interest:
---------------------
Dion Loy Wote:
----------------------
Another alternative is to replace:

getValue("time").getMinutes()

with:

getValue("rawtime")

which returns the number of minutes since Jan 1, 1970. Since you are
just interested in the mod of that value, it should work. (rawtime
does not involve as much computation power as "time").

=================

You might also check out:


This

[mattgundersen]

getValue("rawtime") returns the number of SECONDS since 1/1/1970

Note: In build 510, there is also

getYear(...)
getMonth(...)
getDay(...)
getHour(...)
getMinute(...)
getSecond(...)

where "..." are the same arguments that you would pass to open(...), high(...), low(...), or close(...)

m.

[mattgundersen]

Re: Reply to post 'Undocumented Commands'

getValue("rawtime") returns the number of SECONDS since 1/1/1970

Note: In build 510, there is also

getYear(...)
getMonth(...)
getDay(...)
getHour(...)
getMinute(...)
getSecond(...)

where "..." are the same arguments that you would pass to open(...), high(...),
low(...), or close(...)

m.

--- eSignal Bulletin Board Mailer <[email protected]> wrote:
> Hello mattgundersen,
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>

[Book]

Are these lightweight?

Are these lightweight calls, like getValue(rawtime"), or heavyweight calls, like getValue("time")? Can i use getDay() with no additional processing penalty as compared to
Math.floor(getValue("RawTime") / RawTime.DAY)
?

Waht is this RawTime object? It looks like RawTime.DAY is just the constant 86400, the number of seconds in a day. What are the other accessors to this object?

[gspiker]

the newly added getDay(), getYear(), etc are all lightweight, they use rawtime themselves so that no date object is created.

[dloomis]

Watch how getBarState wroks in action..

debugClear();
setPriceStudy(true);
function main()
{
var gbs=getBarState();

if(gbs==2)
{
curtime();
debugPrint(" BARSTATE_ALLBARS ");
}

if(gbs==0)
{
curtime();
debugPrint(" BARSTATE_NEWBAR ");
}

if(gbs==1)
{
curtime();
debugPrint(" BARSTATE_CURRENTBAR ");
}
return;
}

function curtime()
{
today =new Date;
var CurHours =today.getHours() ;
var CurMinutes=today.getMinutes();
var CurSeconds=today.getSeconds();
if(CurHours <10){CurHours ="0"+CurHours ;}
if(CurMinutes<10){CurMinutes="0"+CurMinutes;}
if(CurSeconds<10){CurSeconds="0"+CurSeconds;}
debugPrint(CurHours+"."+CurMinutes+"."+CurSeconds+ " ");
}

[dloomis]

See the difference between Clock time and BarTime

var start=0;
debugClear();
setPriceStudy(true);

function main()
{
if(getCurrentBarIndex()==0)
{
today =new Date;
CurYear =today.getYear() +1900;
CurMonth =today.getMonth()+1;

CurDate =today.getDate() *1;
if(CurDate<10){CurDate="0"+CurDate;}

CurHours =today.getHours() * 1;
if(CurHours <10)
{CurHours ="0"+CurHours ;}

CurMinutes=today.getMinutes() * 1;
if(CurMinutes<10)
{CurMinutes="0"+CurMinutes;}

CurSeconds=today.getSeconds();
if(CurSeconds<10)
{CurSeconds="0"+CurSeconds;}

debugPrint (" CurDate="+CurMonth+"/"+CurDate+"/"+CurYear);
debugPrintln("CurTime="+CurHours+"."+CurMinutes+". "+CurSeconds);

getMM =getValue("Month");

getDD =getValue("Day");
if(getDD <10)
{getDD ="0"+getDD;}

getY =getValue("Year");

getH =getValue("Hour");
if(getH <10)
{getH ="0"+getH;}

getMin=getValue("Minute");
if(getMin<10)
{getMin="0"+getMin;}

getS=getValue("Second");
if(getS<10)
{getS="0"+getS;}

debugPrint (" BarDate="+getMM+"/"+getDD+"/"+getY);
debugPrintln("BarTime="+getH+":"+getMin+"."+getS);

}
start=1;
return;
}

[dloomis]

Here is a way to send out put to a text file

http://share.esignal.com/download.jsp?groupid=40&folder=&file=log.efs

[dloomis]

I tried to integrate the previous file into my other file and get the following error

TypeError: f1 has no properties

Any ideas what that means?

[dloomis]

You probably have var f1; twice in your file, doh!

[gspiker]

I have sen that before when you try to do things like open a file for appending, but the file doesn't exist. Make sure the filename being created is valid (if you are opeing it with a "+").

[mattgundersen]

I just ran it with no problem. Although I had to comment out the line with "sym = callFunction(...)" Simply replaced it with sym = "bla";

I'd verify that sym is not null.
- verify the filename.
- Verify the formula output path exists
- verify f1 is not null (also init f1 = null)

,m.