oph_aggregate_operator¶

Description¶

Behaviour

It aggregates different measure arrays performing the specified operation on each column of array elements.

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.
operator name: type of aggregation
- ‘oph_count’: computes the number of elements;
- ‘oph_max’: computes the maximum (default);
- ‘oph_min’: computes the minimum;
- ‘oph_avg’: computes the mean;
- ‘oph_sum’: computes the sum.
missingvalue : value to be considered as missing value; by default it is NAN (for “oph_double” and “oph_float”).

Return type

Binary-array.

Examples

Compute the mean value.

oph_aggregate_operator('OPH_DOUBLE','OPH_DOUBLE',measure,'OPH_AVG')

Operation type

Aggregate.

Argument name	Type	Mandatory	Values	Default	Min/Max-times
input data type	“oph_type”	“yes”	“‘oph_double’\|’oph_float’\|’oph_int’\|’oph_long’\|’oph_short’\|’oph_byte’”		“1” / “1”
output data type	“oph_type”	“yes”	“‘oph_double’\|’oph_float’\|’oph_int’\|’oph_long’\|’oph_short’\|’oph_byte’”		“1” / “1”
measure	“binary-array”	“yes”			“1” / “1”
operator name	“oph_operator”	“no”	“‘oph_count’\|’oph_max’\|’oph_min’\|’oph_avg’\|’oph_sum’”	“‘oph_max’”	“0” / “1”
missingvalue	“double”	“no”	“NAN”		“0” / “1”