Range bar analysis ...

[mikexny]

How about the famous NR7 and the IDNR4. Is there an EFS for that? I would want the NR7 to have a pink diamond shape on top of the bar and the IDNR4 to have a blue circle on the bottom of the bar...

From mestastock NR7:
HIGH-LOW<Ref(LLV(H-L,6),-1)

From mestastock IDNR4:
HIGH-LOW<Ref(LLV(H-L,3),-1) AND
HIGH<= Ref(HIGH,-1)
AND LOW>= Ref(LOW,-1)

[tbodnar]

I am interested in this too. Is it possible in eSignal?

[Doji3333]

I wil try to help...

Please explain what LLV stands for and I will conver this code for you. I think is means "LowestLowVariable", but I'm not sure..

Brad

[tbodnar]

I did not post the Metastock code, but that is what it means. An NR7 day means that todays range is smaller than smallest range of the preceding 6 days, i.e. today's range is the narrowest range of 7 days.
Would your code work for intraday charts as well, so as to be able to flag 15-minute or 60-minute NR7 bars as well?

[Doji3333]

Here you go...

This should be what you want - graphics and all..

Brad

[Doji3333]

Minor Graphics issue...

Here is a revised piece of code. I forgot to align the graphics, so this one works the way it should..

Brad

[tbodnar]

It looks good to me!

Just one question: Is it possible to make the two colors variables so that they can be customized if we click on "Edit Studies"?

[eSignal_JasonK]

Hi Brad,

You can add this code to main() to get the color variables as inputs.

function main(nColor) {
    if (nColor == null) {
        nColor = Color.black;
    } else {
        nColor = eval("Color."+nColor);
    }
    /**** Valid inputs for nColor ******
    aqua, black, blue, brown, cyan, darkgreen,
    darkgrey, fushcia, green, grey, khaki,
    lightgrey, lightyellow, lime, magenta,
    maroon, navy, olive, paleyellow, purple,
    red, teal, white, yellow
    ***********************************/ 

[Doji3333]

Thanks Jason...

Thanks Jason. I was wondering about the color issue. Maybe you can explain where the eval function is also of use??

Brad

[tbodnar]

By the way, are you aware that others won't be able to search for this EFS using the search term "NR7"? The search engine on this Bulletin Board comes back with error message:


The search term you specified (nr7) is under the minimum word length (4) and therefore will not be found. Please make this term longer.
If this term contains a wildcard, please make this term more specific.


It also won't allow a search on the word "low", which has to be a common search term for a forum like this.

[eSignal_JasonK]

Hello Brad,

Here is some detailed info on eval(). Basically, it converts a string to the expression it represents. For example, let's say we build this string: "2*2" and set a variable equal to that.

var vData = "2*2"

debugPrintln(vData) would print: 2*2
debugPrintln(eval(vData)) would print: 4

eval() evaluates the string and converts it to what ever it is. In this case the string evaluates to a math statement so it converts it to such and does the math. The string you pass to eval() can also represent an object like the Color object in the code I gave you. It is most useful in EFS when setting variables equal to user inputs from the "Edit Studies" option, because text is sent as a string. For the string: "Color." + nColor, eval() converts it to the Color object with the user defined color value stored in our nColor variable. I hope you find this useful.

Cheers,