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Chapter 9 Graphs, Probes and Data Analysis
Name
Description
Page
Maxima(real [, real, string])
Returns array of all maximum turning 340
points
Maximum(real/complex [,
real, real])
Returns the largest value in a given
range.
Mean(real/complex)
Returns the mean of all values. (You 340
should not use this for transient
analysis data as it fails to take
account of the varying step size. Use
Mean1 instead.)
Mean1(real [, real, real])
Finds the true mean accounting for
the interval between data points
Minima(real [, real, string])
Returns array of all minimum turning 341
points.
Minimum(real/complex)
Returns the largest value in a given
range.
341
RMS1(real [, real, real])
Finds RMS value of data
342
SumNoise(real [, real, real])
Integrates noise data to find total
noise in the specified range.
343
XFromY(real, real [, real,
real])
Returns an array of X values at a
given Y value.
344
YFromX(real, real [, real])
Returns an array of Y values at a
given X value.
344
340
341
User Defined Functions
The following functions are defined using the user defined functions mechanism. They
are defined as scripts but behave like functions.
Name
Description
Page
BPBW(data, db_down)
Band-pass bandwidth.
302
Bandwidth(data, db_down)
Same as BPBW
302
CentreFreq(data, db_down)
Centre frequency
303
Duty(data, [threshold])
Duty cycle of first pulse
303
Fall(data, [start, end])
Fall time
304
Frequency(data, [threshold]) Average frequency
305
301