oph_predicate2¶

Description¶

Behaviour

It evaluates a predicate2. If ‘expression0’ satisfies ‘comparison’ then ‘expression1’ is executed, else ‘expression2’ is executed.

Parameters

input measure type : Ophidia typing. Supported types are: ‘oph_double’; ‘oph_float’; ‘oph_long’; ‘oph_int’; ‘oph_short’; ‘oph_byte’.
output measure type : Ophidia typing. Supported types are: ‘oph_double’; ‘oph_float’; ‘oph_long’; ‘oph_int’; ‘oph_short’; ‘oph_byte’.
measure : input measure.
expression 0 : first expression.
comparison : condition to be verified.
expression 1 : expression executed if expression 0 satisfies comparison.
expression 2 : expression executed if expression 0 does not satisfy comparison.
occurrence : if is set to a number ‘n’ then expression 1 is evaluated only for the ‘n’-th of the condition; otherwise the expression 2 is evaluated. Use ‘first’ or ‘begin’ for the first occurrence. Use ‘last’ or ‘end’ for the last occurrence. Use ‘all’ to skip this check (default).

Return type

Binary-array.

Examples

Extract measures with temperature values greater than 300 K.

oph_predicate('OPH_DOUBLE','OPH_DOUBLE',measure,'x-300','>0','1','0')

Operation type

simple

Argument name	Type	Mandatory	Values	Default	Min/Max-times
input measure type	“oph_type”	“yes”	“‘oph_double’\|’oph_float’ \|’oph_int’\|’oph_long’\|’op h_short’\|’oph_byte’”		“1” / “1”
output measure type	“oph_type”	“yes”	“‘oph_double’\|’oph_float’ \|’oph_int’\|’oph_long’\|’op h_short’\|’oph_byte’”		“1” / “1”
measure	“binary-array”	“yes”			“1” / “1”
expression 0	“string”	“yes”			“1” / “1”
comparison	“string”	“yes”			“1” / “1”
expression 1	“string”	“yes”			“1” / “1”
expression 2	“string”	“yes”			“1” / “1”
occurrence	“string”	“no”		“all”	“0” / “1”