Localmax: Difference between revisions

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===Purpose===
#REDIRECT [[localmaxima]]
Automated identification of local maxima
===Synopsis===
:i0 = localmax(x,w)
===Description===
Finds maxima in windows of width (w). Wider windowing is used to avoid local maxima that might be due to noise. The default window width is w=3. This function is called by PEAKFIND.
INPUT:
* x =  matrix of measured traces containing peaks each  row of (x) is an individual trace.
OPTIONAL INPUT:
* w = odd scalar window width for determining local maxima {default: w = 3}.
OUTPUT:
* i0 =  cell w/ indices of the location of the major peaks for each of the  traces in each cell.
===Examples===
:load nir_data
:plot(spec1.axisscale{2},spec1.data(1,:))
:i0 = localmax(spec1.data(1,:));
:vline(spec1.axisscale{2}(i0{1}))
:i0 = localmax(spec1.data(1,:),5);
:vline(spec1.axisscale{2}(i0{1}),'r')
===See Also===
[[fitpeaks]], [[peakfind]]

Latest revision as of 15:20, 28 April 2015

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