doubleBaseType

A number with an optional decimal point and an optional exponent. NaN (not a number), INF and -INF (infinity) are valid values.

Example values

Value	Validity
0.25	valid
-1.5e3	valid, −1500
5	valid
NaN	valid
INF	valid
-INF	valid
1,5	invalid, decimal comma
+INF	invalid, sign before INF
nan	invalid, lower case
empty element	invalid

Uncertainty (deprecated)

A value can be described as a random variable: @uncertaintyFunctionName names its probability distribution, and further attributes give the parameters of that distribution. Two distributions are defined:

Distribution	Parameters
GaussianNormalDistribution	@mu mean, @delta standard deviation
ExponentialDistribution	@b mean, i.e. the inverse of the rate

The attributes @a, @c, @v and @w belong to neither distribution.