Add different columns in to different graphs

Hello everyone I am very new in Igore. I have XAS data, I need to select two columns of these data and plot them in separate graphs, and there are 100 separate data files. I attached one of them and you can see that there are different columns and I want to choose the first and 8th columns and again first and 9th columns , then plot them. I wrote some stuff and you can see them below, I could write some commands to open a new window and insert the path of the data but I have no idea how to choose those columns and how to plot them!!! other columns should be ignored. Thank you in advance ***************************************************************** Menu "Payam" "Load1011XAS", XAS1011("",0,0) end function XAS1011(basename,first,last) string basename variable first,last prompt basename,"Specify the basename of the files to be loaded (filename format: basenameXXXX)" prompt first,"Number of the first spectrum to load" prompt last,"Number of the last spectrum to load" doprompt "Load settings",basename,first,last silent 1 string name,EkinName,SpectrumName,SpectrumName1,WavesToBeKilled,WaveToBeKilled,WavesToBeRenamed,WaveToBeRenamed variable i=first,j NewPath /M="Choose data directory"/O DataPath if(!DataFolderExists("root:Data")) NewDataFolder/S root:Data else SetDataFolder root:Data endif do //Find wavename name=basename+num2str(i)+".sx7" if(i

hrodstein

I am very new in Igore.

If you have not already done it I recommend putting your current task aside and doing the first half of the Igor guided tour. It is essential. Choose Help->Getting Started.

Once you have done that ...

I'm not sure that I understand what you want to do but I have pasted below an attempt at doing it.

Before trying this you must create an Igor symbolic path pointing to the folder containing the files. You need to first understand what that is so execute this command and read the help:


DisplayHelpTopic "Symbolic Paths"


Function Demo(pathName, baseFileName, firstFileIndex, lastFileIndex)
	String pathName				// Name of Igor symbolic path
	String baseFileName
	Variable firstFileIndex, lastFileIndex

	NewDataFolder/O/S root:Data
	
	Variable i
	for(i=firstFileIndex; i<=lastFileIndex; i+=1)
		// Create names for waves
		String xName
		sprintf xName, "X%04d", i					// e.g., X0000
		String aName
		sprintf aName, "A%04d", i					// e.g., A0000
		String bName
		sprintf bName, "B%04d", i					// e.g., B0000
	
		// Create parameter for LoadWave/B flag
		String columnInfo = ""
		columnInfo += "N=" + xName + ";"
		columnInfo += "C=6,N='_skip_';"			// Skip 6 columns
		columnInfo += "N=" + aName + ";"
		columnInfo += "N=" + bName + ";"
		columnInfo += "C=100,N='_skip_';"			// Skip all remaining columns
		
		// Load the waves
		String fileName
		sprintf fileName, "%s%04d.sx7", baseFileName, i
		LoadWave/G/P=$pathName/B=columnInfo/A/O fileName		// Sets S_waveNames to list of wave names
		
		// Create references for the waves loaded
		String name
		name = StringFromList(0, S_waveNames)
		Wave xWave = $name
		name = StringFromList(1, S_waveNames)
		Wave aWave = $name
		name = StringFromList(2, S_waveNames)
		Wave bWave = $name
		
		// Create graph
		String graphName
		sprintf graphName, "PayamGraph%d", i
		if (WinType(graphName) == 0)				// Graph does not already exist?
			Display/N=graphName aWave vs xWave as graphName
			AppendToGraph bWave vs xWave
		endif
	endfor	
End

August 18, 2014 at 12:19 pm - Permalink