Add different columns in to different graphs

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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<100)
name=basename+"0"+num2str(i)+".sx7"
endif
if (i<10)
name=basename+"00"+num2str(i)+".sx7"
endif

i+=1
while(i end temp.zip (8.99 KB)
Quote:
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