Selecting Which Price To Use

[AssetHound]

I want to set up a parameter in preMain that allows me to pick which price to use in setting a trigger -- high, low, open, close. Then, in main, I need to get that price but I don't want to create a series.

If I select "high" in the paramaters, the statement in main would need to select the current high price.

Like: triggerPrice = high(0);

It's not clear to me how to construct the above statement in main to use a variable from preMain which has the type of price selection. I can't seem to find any examples.

Thanks.

[ACM]

AssetHound
In preMain set up a FunctionParameter eg
var fp00 new FunctionParameter("Source", FunctionParameter.STRING);
fp00,addOption("close");
fp00.addOption("high");
fp00.setDefault("close");
Add the parameter to the main declaration then in the main function enclose the parameter Source in an eval() function to evaluate the string
var triggerPrice = eval(Source)(0);
For more detailed examples see the studies included in the EFS2 Custom folder
Alex

[AssetHound]

Thanks, as always. Very helpful.

Originally posted by Alexis C. Montenegro
AssetHound
In preMain set up a FunctionParameter eg
var fp00 new FunctionParameter("Source", FunctionParameter.STRING);
fp00,addOption("close");
fp00.addOption("high");
fp00.setDefault("close");
Then in main enclose the parameter Source in an eval() function to evaluate the string
var triggerPrice = eval(Source)(0);
For more detailed examples see the studies included in the EFS Custom folder
Alex

[ACM]

AssetHound
As always my pleasure
Alex