Normalization

You might want to look into the Wave Arithmetic package. To learn more about it, look at the example experiment- File->Example Experiments->Analysis->Wave Arithmetic Panel Demo.

Check out the documentation for MatrixOP which includes a number of normalization options.

Depending on what you mean by normalize, this may either do what you need or give you a starting point for a GUI.

While this may seem like a lot of GUI for a trivial operation (wave/=number), I find it very useful when entering data from a lab book to be able to see and check the entries, and to be able to operate on a lot of spectra in one go.

I don't understand. I would like to normalize my spectre. I want to normalize with the majeur element in the spectre

"Normalize a spectrum" means different things to different people.

What kind of spectrum, and how do you want to normalize it?

For example, in vibrational spectroscopy absorbance spectra collected in transmission geometry may be normalized to unit path length, or Raman spectra may be normalized to equal area, or other kinds of spectra may be normalized to a reference value at some position, there are many possibilities and we have no way to know what it is that you want to do.

I want to normalize with the majeur element in the spectre

I guess you mean that you want to divide the spectrum by the largest value in the spectrum. You can do that with the Wave Arithmetic panel I mentioned earlier.

I use the technique LIBS atomic spectroscopy. I would like to normalize to a reference value like this divide Intensity/Intensity(element reference),Intensity(element reference) mean high intensity in the spectre

using trace menus:

Menu "TracePopup"
	"Normalize By Wave Max", /Q, NormaliseTraceByMax("")
end

Menu "AllTracesPopup"
	"Normalize All By Maxima", /Q, NormaliseAllTracesByMax()
end

function NormaliseAllTracesByMax()
	
	string tracelist=TraceNameList("",";",1+4)
	string s_trace
	variable i=0, numTraces=ItemsInList(tracelist)
	for(i=0;i<numTraces;i+=1)
		s_trace=StringFromList(i,tracelist)
		NormaliseTraceByMax(s_trace)
	endfor
end

function NormaliseTraceByMax(s_trace, [x1, x2])
	string s_trace
	variable x1, x2
	
	if (strlen(s_trace)==0)
		GetLastUserMenuInfo
		string tracesList=S_traceName
	endif
		
	wave w=traceNameToWaveRef("",s_trace)
	if (waveexists(w)==0)
		return 0
	endif
	
	variable maxVal=nan
	if(ParamIsDefault(x1)||ParamIsDefault(x2))
		maxVal=wavemax(w)
	else
		maxVal=wavemax(w, x1, x2)
	endif
	duplicate /o w $nameofwave(w)+"_n" /wave=w_norm
	w_norm=w/maxVal
	printf "duplicate /o %s %s_n\r" nameofwave(w), nameofwave(w)
	printf "%s_n = %s/%g\r" nameofwave(w), nameofwave(w), maxVal
	ReplaceWave trace=$s_trace, $nameofwave(w)+"_n"
end

If you would like to all spectre by the maximum intensity you use these scipt

Menu "AllTracesPopup"
    "Normalize All By Maxima", /Q, NormaliseAllTracesByMax()
end

function NormaliseAllTracesByMax()
    
    string tracelist=TraceNameList("",";",1+4)
    string s_trace
    variable i=0, numTraces=ItemsInList(tracelist)
    for(i=0;i<numTraces;i+=1)
        s_trace=StringFromList(i,tracelist)
        NormaliseTraceByMax(s_trace)
    endfor
end

modou wrote:

If you would like to all spectre by the maximum intensity you use these scipt

Menu "AllTracesPopup"

Yes, to see the all traces popup menu you must shift-right-click on a trace in the graph window. Alternatively you can execute NormaliseAllTracesByMax() when the waves are plotted in the top graph. Or you could add another menu like this:

Menu "Macros"
	"Normalize all waves in top graph", NormaliseAllTracesByMax()
end

I try and I comeback.THANKS for your help

Now I use this script he works

Macro GetCursor(ctrlName) : ButtonControl
String ctrlName
variable ,i_B
variable/G nn
Make/O/N=(nn) Average_Norm

                 i_A = pcsr(A)
           Average_Norm    = Average/Average[i_A]

End

Tony thank you for your help