SIGGEN syntax

Syntax is (without the spaces):

function amplitude +/- y-offset @ period +/- x-offset (in seconds)

e.g. sin10-30@600-3600 — sinewave of amplitudes -10 and 10; offset by -30 (i.e. between -40 and -20); period of 600 seconds; offset by -3600 seconds (1 hr)*

Function supported are:

• sin (sine)
• cos (cosine)
• saw (saw wave)
• sq (square wave)
• sc (S-curve)

To create just static trends of a single number write

siggen/7

Tip if you would like to trend:

eg: siggen/sin4@300

eg: siggen/saw1000000@30d+5d - Max of 1000000 starting at 0, 30 days off set by 5d (note -5d is invalid)

calc/ADD(rand20~1@2000000)

Wave Generation

Syntax: function amplitude +/- y-offset @ period +/- x-offset (in seconds)

Function supported are:

• sin (sine)
• cos (cosine)
• saw (saw wave)
• sq (square wave)
• sc (S-curve)

EG: siggen/sin10-30@1d-1h → Sine Wave of amplitude 10 with a -30 y-axis offset. A period of 1d with 1d x-axis offset.

Ramp Generation

Syntax: function amplitude  @ CyclicTimePeriod 

CyclicTimePeriod: day, bday, month or year

EG: siggen/ramp10@day → Ramp Wave of amplitude 10. A period of 1d.

Random Value Signal

Syntax: function average ~ range  @ smoothingFactor

EG: siggen/rand10~5@3600000 → Random Value signal with a mean of 10 and a range of +/- 5. A smoothing factor of 3600000 (default).

Constant Value Generation

Syntax: value

EG: siggen/10 → A flat signal with value 10.