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SAYMON документация

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To create more complex conditions based on mathematical operations, it is possible to use the formula editor.

To use formulas:

  1. Switch to manual input.

  2. Enter the metric name in the condition field or select it in the filtered list of variants. The name of each metric must be written in figure braces as follow: {{metric_name}}.

  3. Using mathematical symbols, constants, and braces to enter the formula. For example, the difference between the maximal round-trip time and of minimal round-trip time:
    {{roundTripMaximum}} - {{roundTripMinimal}}

The result of calculations will automatically be displayed over the entered mathematical operation:

Below is the list of all available operators and functions:

f(), x.yFunction call, property access
+, -, not, sqrt, etc.Unary prefix operators (see below for the full list)
*, /, %Multiplication, division, remainder
+, -, ||Addition, subtraction, concatenation
==, !=, >=, <=, >, <Equals, not equals, etc.
andLogical AND
orLogical OR
x ? y : zTernary conditional (if x then y else z)

+xUnary plus. This converts it's operand to a number, but has no other effect.
x!Factorial (x * (x-1) * (x-2) * … * 2 * 1). gamma(x + 1) for non-integers.
abs xAbsolute value (magnatude) of x
acos xArc cosine of x (in radians)
acosh xHyperbolic arc cosine of x (in radians)
asin xArc sine of x (in radians)
asinh xHyperbolic arc sine of x (in radians)
atan xArc tangent of x (in radians)
atanh xHyperbolic arc tangent of x (in radians)
ceil xCeiling of x — the smallest integer that’s >= x
cos xCosine of x (x is in radians)
cosh xHyperbolic cosine of x (x is in radians)
exp xe^x (exponential/antilogarithm function with base e)
floor xFloor of x — the largest integer that’s <= x
length xString length of x
ln xNatural logarithm of x
log xNatural logarithm of x (synonym for ln, not base-10)
log10 xBase-10 logarithm of x
not xLogical NOT operator
round xX, rounded to the nearest integer, using "gradeschool rounding"
sin xSine of x (x is in radians)
sinh xHyperbolic sine of x (x is in radians)
sqrt xSquare root of x. Result is NaN (Not a Number) if x is negative.
tan xTangent of x (x is in radians)
tanh xHyperbolic tangent of x (x is in radians)
trunc xIntegral part of a X, looks like floor(x) unless for negative number
random(n)Get a random number in the range [0, n). If n is zero, or not provided, it defaults to 1.
min(a,b,…)Get the smallest (minimum) number in the list
max(a,b,…)Get the largest (maximum) number in the list
hypot(a,b)Hypotenuse, i.e. the square root of the sum of squares of its arguments.
pyt(a, b)Alias for hypot
pow(x, y)Equivalent to x^y. For consistency with JavaScript's Math object.
atan2(y, x)Arc tangent of x/y. i.e. the angle between (0, 0) and (x, y) in radians.
if(c, a, b)Function form of c ? a : b
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