PEAK

PNUM

 Any one of the data curves currently on the screen may be specified
 explicitly by using the \PNUM qualifier and including the scalar num. This
 scalar specifies which data curve, in the order they were drawn, is to be
 selected for PEAK mode.

Xwindows

 When running under X windows, mouse button 2 toggles the continuous
 display of the graphics cursor location. The PHYSICA keyword CUNITS is
 the units type for these numbers. If CUNITS = WORLD, the numbers depend
 on the current units type, either CM or IN, as chosen with SET UNITS.
 If CUNITS = GRAPH, the numbers displayed depend on the current graph
 axis scales. If CUNITS = PERCENT, the numbers depend on the current window.

keycodes

 <   moves the cursor to the nearest peak to the left
 >   moves the cursor to the nearest peak to the right
 Pn  defines criterion for peak finding to be n points monotonically
     increasing, followed by n points monot. decreasing. (default n=1)
     NOTE: works only with > when enabled, n=0 disables this function
 Fn  fits least-squares parabola to 2*n+1 nearby points (n=1...9) and
     moves the cursor to the fitted peak location, e.g., F3 would peak
     fit the surrounding 7 pts
 Cn  use the n'th curve on the screen for subsequent codes
 +   search for peaks (maxima)
 -   search for dips  (minima); this is the default
 A   amplitude required for peak (or dip). The user is prompted to enter
     a limiting amplitude by returning two cursor Y-coords. (abort with Z)
 Y   set the Y tolerance parameter. Move the cursor to the desired
     Y-value and enter any character (abort with Z)
 N   disable the Y tolerance flag
 Z   aborts entry of cursor coordinates for A,Y codes
 D   display the last peak position in graph coordinates
 R   record and save the last peak position
 S   save the last peak position and flag with a symbol
 /   alphanumeric clear
 Q   quit
 All other characters ignored