oph_get_subarray3¶

Description¶

Behaviour

It extracts a subset of a measure array. If size-i params are defined, then the array is considered multidimensional with i implicit dimensions, each of size-i. The subset can also be applied on multiple dimensions.

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.
• subset: enumeration of comma-separated elementary filters (1 series of filters for each dimension). Possible filter forms:
  • start_index: select a single value, specified by its index.
  • start_index:stop_index: select elements from start_index to stop_index.
  • start_index:stride:stop_index: select elements from start_index to stop_index with a step of stride. Indexes are integers from 1 to the dimension size and it can be used “end” to specify the index of the last element.
• block size: product of slowly changing dimensions.
• size: size of the dimension on which subsetting is done.

Return type

Binary-array.

Examples

Extract elements 1 and 2 with block size 360 and size 100.

oph_get_subarray3('OPH_DOUBLE','OPH_DOUBLE',measure,'1,2',360,100)

Operation type

Simple.

Arguments¶