Append the loaded waves to the top Graph

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I am trying to learn Igor programming (too hard :-( ) and I just started to create functions. I would like to know how we can Append the loaded waves to the top wave (which I created earlier) ? I made this simple function but it does not work unless I put in the header of the file I want to load the word "Decay"

#pragma rtGlobals=1     // Use modern global access method.
 
Function LoadGraph()
 
Make/O/N=4090/D 'Decay'
Display/M/W= (22,1.5,33.5,9.5); AppendToGraph 'Decay' 
DoWindow/F Graph0
LoadWave/O/G/W/A
SetScale/I x 0,200,"ns", Decay 
 
End


PS: Is there a recommended method to learn Igor programming -_-' ? Decay.txt (16.5 KB)
First, create the graph manually with nothing in it by executing:
Display

from the command line.

Now here is a function that will load a file and append to the top graph:
Function LoadGraph()
    DoWindow/F Graph0
    LoadWave/O/G/A
    if (V_flag == 0)        // V_flag is set by LoadWave
        return -1       // User cancelled - -1 signifies cancel
    endif
    String name = StringFromList(0, S_waveNames)    // S_waveNames is set by LoadWave
    Wave w = $name      // Get a wave reference for the loaded wave
    SetScale/I x 0,200,"ns", w  // Set wave's X scaling
    AppendToGraph w     // Append to top graph
    return 0                // Zero-signifies success 
End


To learn more execute this:
DisplayHelpTopic "Loading Waves Using Igor Procedures"


Quote:
Is there a recommended method to learn Igor programming

First, if you have not already done it, do the Igor guided tour by choosing Help->Getting Started. This is a prerequisite.

Next read these chapters in the PDF manual:
IV-1: Working With Commands
IV-2: Programming Overview
IV-3: User-Defined Functions
IV-5: User-Defined Menus
IV-6: Interacting With The User

March 17, 2013 at 04:56 pm - Permalink
Thank you very much hordstein, but the SetScale does not work! and I do not understand all ° _ ° ' This is really hard.
No I have not yet read the Igor's manul....

March 19, 2013 at 08:13 am - Permalink
fay.tor wrote:
Thank you very much hordstein, but the SetScale does not work! and I do not understand all ° _ ° ' This is really hard.
No I have not yet read the Igor's manul....

Unless you at least go through the Guided Tour and understand Igor's "wave scaling", you will be wasting a lot of time just trying stuff that doesn't work.

Choose "Getting Started" from Igor's Help menu, start with "Introduction to Igor Pro", continue through "Waves - The Key Igor Concept". You *could* try skipping to the "User-Defined Functions" help topic, but Howard's suggested reading list is more likely to lead to success.

--Jim Prouty
Software Engineer, WaveMetrics, Inc.

March 19, 2013 at 10:37 am - Permalink
you're right Jim, I want to skip ahead to go faster but obviously this is not the right way ...

March 20, 2013 at 01:23 am - Permalink