Problem using dsUtilities

[ramckay]

I'm trying to use one of the dsUtilities.efsLib functions - (dsDrawDnArrow) as described in the help file. I copied the example in the help file and saved it as an efs file. When it is applied to a chart, instead of arrows being displayed at swing highs as I expected there is an empty indicator section at the bottom of the chart. I've saved the dsUtilities.efsLib in the FunctionLibrary folder. I tried the same approach using different functions from the dsUtilities library with the same results. I've searched the forums for examples but have been unable to find any. If anyone sees the error in my ways thanks in advance.

Also, when I tried to copy the following code into a PHP box I found that I could only copy 1 line. Is there a trick?

var myLib = addLibrary( "dsUtilities.efsLib" );
function main() {
  var myVar;
  myVar = myLib.dsSwingHighBar( 1, 3, 0, 50 );
  if ( getBarState() == BARSTATE_NEWBAR ) { 
   myVar = myLib.dsSwingHighBar( 1, 3, -1, 7 );
  if ( myVar != null ){
    my.lib.dsDrawDnArrow( myvar, Color.red, 12);
  }
 }
} 

[ACM]

ramckay
If you want the study to draw the swings in the price chart you need to add a preMain() function where you set the study to plot as a price study using the setPriceStudy(true) statement
With regards to the script you posted there are a couple of syntax errors in the following line of code

my.lib.dsDrawDnArrow( myvar, Color.red, 12); 

which should be

myLib.dsDrawDnArrow( myVar, Color.red, 12); 

Once you make these changes the arrows should draw in the price chart
Alex

Originally posted by ramckay
I'm trying to use one of the dsUtilities.efsLib functions - (dsDrawDnArrow) as described in the help file. I copied the example in the help file and saved it as an efs file. When it is applied to a chart, instead of arrows being displayed at swing highs as I expected there is an empty indicator section at the bottom of the chart. I've saved the dsUtilities.efsLib in the FunctionLibrary folder. I tried the same approach using different functions from the dsUtilities library with the same results. I've searched the forums for examples but have been unable to find any. If anyone sees the error in my ways thanks in advance.

Also, when I tried to copy the following code into a PHP box I found that I could only copy 1 line. Is there a trick?

var myLib = addLibrary( "dsUtilities.efsLib" );
function main() {
  var myVar;
  myVar = myLib.dsSwingHighBar( 1, 3, 0, 50 );
  if ( getBarState() == BARSTATE_NEWBAR ) { 
   myVar = myLib.dsSwingHighBar( 1, 3, -1, 7 );
  if ( myVar != null ){
    my.lib.dsDrawDnArrow( myvar, Color.red, 12);
  }
 }
} 

[ramckay]

Alex,

I added a preMain() function and a setPriceStudy(true) line. Still get the same result - an empty indicator window with no arrows on the chart. What else could I be doing incorrectly? Probably simple because I'm a real newbie with eSignal.

Also, is there any way to copy several lines of code and enter them into a PHP box so that I can display what I've written. Could only get one line of copied code to transfer into PHP box even when I'd selected several. Better yet, is there a place where detailed instructions are given showing how to enter information into the forum?

Thanks so much,
Rod

[ACM]

Rod
After you edited the script did you remove the efs from the chart and then load it again?
Note that changes to setPriceStudy() will not take effect after an indicator has already been loaded in the chart
Alex

Originally posted by ramckay
Alex,

I added a preMain() function and a setPriceStudy(true) line. Still get the same result - an empty indicator window with no arrows on the chart. What else could I be doing incorrectly? Probably simple because I'm a real newbie with eSignal.

Also, is there any way to copy several lines of code and enter them into a PHP box so that I can display what I've written. Could only get one line of copied code to transfer into PHP box even when I'd selected several. Better yet, is there a place where detailed instructions are given showing how to enter information into the forum?

Thanks so much,
Rod

[ACM]

Rod
At my end [using either IE6 or IE7] I just copy and paste the contents inside the PHP tags without any problems (see enclosed animation captured while writing this post)
Alex

var myLib = addLibrary( "dsUtilities.efsLib" );
function main() {
  var myVar;
  myVar = myLib.dsSwingHighBar( 1, 3, 0, 50 );
  if ( getBarState() == BARSTATE_NEWBAR ) { 
   myVar = myLib.dsSwingHighBar( 1, 3, -1, 7 );
  if ( myVar != null ){
    my.lib.dsDrawDnArrow( myvar, Color.red, 12);
  }
 }
} 

Originally posted by ramckay
Alex,

I added a preMain() function and a setPriceStudy(true) line. Still get the same result - an empty indicator window with no arrows on the chart. What else could I be doing incorrectly? Probably simple because I'm a real newbie with eSignal.

Also, is there any way to copy several lines of code and enter them into a PHP box so that I can display what I've written. Could only get one line of copied code to transfer into PHP box even when I'd selected several. Better yet, is there a place where detailed instructions are given showing how to enter information into the forum?

Thanks so much,
Rod

[ramckay]

Thanks so much Alex.

I forgot to save the corrections after the changes!

The demo is great, but when I try it the list of choices that I get are:
Back
Forward (grayed out)
Print
Refresh

not the Copy
Cut
Paste
etc.
that are in the demo.

Rod

[ACM]

Rod
It sounds like you may be using the browser included in the eSignal application which [for reasons I do not know] does not provide the Copy and Paste commands. I would suggest using a stand-alone browser such as IE, Firefox, etc
Alex

Originally posted by ramckay
Thanks so much Alex.

I forgot to save the corrections after the changes!

The demo is great, but when I try it the list of choices that I get are:
Back
Forward (grayed out)
Print
Refresh

not the Copy
Cut
Paste
etc.
that are in the demo.

Rod

[ramckay]

That works like a champ.

Thanks again Alex. You're great!

Rod

[ACM]

Rod
You are most welcome and thank you for the kind words
Alex

Originally posted by ramckay
That works like a champ.

Thanks again Alex. You're great!

Rod