Coding for beginners - this is how Steve started

[traderduke]

NT
thanks for the suggestion, I'll give it a try.

hi traderduke,

What is the code for limiting one trade per candle??

Maybe you can make use of the following function...

Code: Select all

bool isNewBar() {
	static int prevTime;
	bool newBar=false;
	
	if(Time[0]!=prevTime) {
		newBar=true;
		prevTime=Time[0];
	}
	
	return(newBar);
}

usage:

Code: Select all

if ( isNewBar ) {
    your trading logic;
}

happy weekend,

NeoTrader

-

[Big Be]

More Programming Student Tips

I started several years ago as Steve did, with Coders' Guru lessons.
I started a thread on TSD a while ago to further help programming students:

Things Coders' Guru Never Taught Me
http://www.forex-tsd.com/lessons/23721- ... ht-me.html

Big Be

[SteveHopwood]

More Programming Student Tips

I started several years ago as Steve did, with Coders' Guru lessons.
I started a thread on TSD a while ago to further help programming students:

Things Coders' Guru Never Taught Me
http://www.forex-tsd.com/lessons/23721- ... ht-me.html

Big Be

Nice on Big Be. I have linked this in post 1.

[traderduke]

NT or big be
Is this the proper order for this current bar check???
Thanks for your help

//---------------------------------
// Verify that a new bar appeared.|
//---------------------------------
bool NewBar()
{
static int lastBars;
if (lastBars != Bars)
{
lastBars = Bars;
return(true);
}
else
{
return(false);
}
}
//+------------------------------------------------------------------+
//| expert start function |
//+------------------------------------------------------------------+
int start()
{
//return if not a new bar
if (!NewBar()) return(0);

the rest of the EA code???

NT
thanks for the suggestion, I'll give it a try.

NeoTrader

-

[/quote]

[Big Be]

New Bar Check

traderduke,
That seems kind of complicated to me.
I use this:

datetime BarTime = 0;

Start()
{
//Code//

if(BarTime != Time[0])
{

//Code to only run once at new bar//

BarTime = Time[0];
}

//Code//

}

It will work in any function.

Big Be

[jjasper7]

does anyone know of a code 'debuger' that is available to help follow down thru a program, perhaps stopping at set breakpoints, and allowing me to interrogate variables. it would sure help to be able to check 0ut new code, and follow the logic step by step.

[jjasper7]

another stupid question... i have forgotten how to download a program. j just went to 'just made an ide for mql4' and i do not see the file(s) to download or instructions to activate the 'ide'. please guide me.

[SteveHopwood]

What a trip down memory lane reading this thread has been - I was minded to do so after sending a link to a member interested in getting started in coding.

To think that I have been using Gary's CloseEnough() function for over three years. It only feels like yesterday that he introduced me to it. My memory tells me that I did not understand first time around as well.

I see there have been a fair few downloads of the various zips around here. It would be great if people happily coding away for themselves these days got their start via CodersGuru here.

[Lotuscode]

Perfect info for a beginner. Thanks for sharing guys.

[mcbusrider]

Great resource for just starting out in MQL4 coding - thanks everyone!

My background is amateur coder, coming to MQL4 from Python.

I'd probably pitch myself at beginner to intermediate level nowadays.

I've been messing around with the Oanda REST API for a couple of years and wrote a couple of scripts using the Oandapy Python wrapper module - here's the thread:

http://www.stevehopwoodforex.com/phpBB3 ... =64&t=4286

Looking forward to getting stuck into MQL4! I'm wading through a JavaScript Full Stack course on Treehouse at the moment, this little baby is next on the list.

The fog of confusion has been lifting of late, but by all accounts MQL4 should plunge me straight back into the mist...

Happy coding!

Nige