This function automatically adds tags to a graph from a text wave. You must specify the graph name ("" for top graph) as a string, the trace name to be labeled as a string, and the text wave that the labels should come from. The labelWave should have at least as many points as the wave to be labeled.

Function AddTagsFromWave(graphName, traceName, labelWave)
	String graphName
	String traceName
	Wave/T labelWave
 
	Wave w = TraceNameToWaveRef(graphName, traceName)
 
	Variable index
	for(index = 0; index < numpnts(w); index+=1)
		String tagName = "label" + num2str(index)

Igor provides a function "Integrate1D()" for integrating functions of one-dimensional arguments. The associated help file gives a method for using it to integrate functions of two-dimensional arguments, with the statement "This method can be extended to higher dimensions." I found the effort to be not entirely trivial, and thought to save others the work with the following code. I have shown an interestingly complex user function of (x,y,z) that has a simple analytic result for large integration limits after converting to a radial coordinate system

The code below will allow you to create a simple panel (see attached image) that allows you to monitor or potentially control a simple piece of equipment. The example controls 16 individual digital bits and can be used in different modes, including to monitor the status of a real piece of equipment or to be used in place of a piece of equipment.

To use the code, copy it into a procedure window and compile the code. Then, you'll need to create two waves.

The getXRDML() function makes use of the XOP XMLutils by andyfaff (http://www.igorexchange.com/project/XMLutils) to load diffracted intensties from xrdml files (Panalytical diffractomters standard xml file format).
It creates a folder for each xrdml-file read. The foldername will be the xrdml-filename in lower case letters without the fileextension. The intensities are loaded into waves called 'intensities##' stored in the folder /XMLutil/XRD/'filename'.