Plot only once help

December 4th, 2016, 11:51 AM

Hi,

I have this Show Me code that I would like to plot only once, only the first time the conditions are met. Or if the last plot was a "Buy" plot, then the next plot can only be a "Sell" plot. So it would alternate between one plot for a sell and the next plot for a buy and then the next plot would be a sell. But I think it would be easier if the code would just plot it once the first time the conditions are met. Any help is appreciated.

Code

input: offset(.05);

variables: Range(0);

Range=(Open + Close) /2;

if close of Data2 >= Range of Data1 then
	begin
	Plot1( Low - offset, "Buy") ;
	end
	Else Begin
	NoPlot(0);
	end;
	
if close of Data2 <= Range of Data1 then
	begin
	Plot1( High + offset, "Sell") ;
	end
	Else Begin
	NoPlot(0);
	end;

December 4th, 2016, 11:52 AM

you can use Once to plot one time

December 4th, 2016, 03:13 PM

I tried the following but it only plotted the first time the condition happened on the chart. I don't think I was clear. I would like it to plot every time my condition is met, but only the first bar that it is met and not every single bar.

Code

input: offset(.05);

variables: Range(0);

Range=(Open + Close) /2;

once (close of Data2 >= Range of Data1)
	begin
	Plot1( Low - offset, "Buy") ;
	end;
	
once (close of Data2 <= Range of Data1)
	begin
	Plot1( High + offset, "Sell") ;
	end;

This is where I would like it to plot but only on the bars with arrows:

ABCTG · December 5th, 2016, 05:30 AM

olobay,

you could use a boolean variable that you check together with your condition. If your conditions are met, you will set the boolean to true as well. Now you just have to reset the boolean to false again in order to allow for a new plot - when you do that depends on when you want to allow another plot again (for example after X bars, when the conditions are not fulfilled anymore or with the opposite plot etc.).

Code

Variables:
haveBuyPlot ( false );

if close of Data2 >= Range of Data1 and haveBuyPlot = false then
	begin
        haveBuyPlot = true ;
	Plot1( Low - offset, "Buy") ;
	end;

Regards,

ABCTG

December 5th, 2016, 10:49 PM

ABCTG

olobay,

you could use a boolean variable that you check together with your condition. If your conditions are met, you will set the boolean to true as well. Now you just have to reset the boolean to false again in order to allow for a new plot - when you do that depends on when you want to allow another plot again (for example after X bars, when the conditions are not fulfilled anymore or with the opposite plot etc.).

Regards,

ABCTG

Thanks for the help. I understand in English what I need to do, but I have no idea how I should state it or where to place it in the code. I want to have only one bar with a dot and alternating dots, one for a sell and the next for a buy and the next for a sell again. This only plots once on the first occurrence on the chart.

Code

input: offset(.05);

variables: Range(0), haveBuyPlot(false), haveSellPlot(false);

Range=(Open + Close) /2;

if close of Data2 >= Range of Data1 and haveBuyPlot = false then
	begin
	haveBuyPlot = true ;
	Plot1( Low - offset, "Buy") ;
	end;
	
if close of Data2 <= Range of Data1 and haveSellPlot = false then
	begin
	haveSellPlot = true ;
	Plot1( High + offset, "Sell") ;
	end;

ABCTG · December 6th, 2016, 03:08 AM

olobay,

your code correctly does the first part of "If your conditions are met, you will set the boolean to true", you just need to do the second part "reset the boolean to false again [...] with the opposite plot". This is missing in the code and that's why you just get one plot for the very first occurrence at the moment.

In other words, when you set haveBuyPlot to true, you need to set haveSellPlot to false and vice versa. This will allow a new plot the next time your conditions are fulfilled.

Regards,

ABCTG

Plot only once help

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Plot only once help