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Operator’s manual – Teledyne LeCroy WaveExpert 100H Operators Manual User Manual

Page 132

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Operator’s Manual

130

WE-OM-E Rev A

xapk

X Coordinate of xx

th

Peak

Definition: Returns the value of the xx

th

peak that is the largest by area in a histogram.

Description: First the peaks in a histogram are determined and ranked in order of total area

(for a discussion on how peaks are identified see the description for the pks
parameter). The center of the n

th

ranked peak (the point where the area to the

left is equal to the area to the right), where n is selected by you, is then
returned as xapk.

Example: The rightmost peak is the largest, and is thus ranked first in area (1). The

leftmost peak, although higher, is ranked second in area (2). The lowest peak
is also the smallest in area (3).