Operator Reference
tuple_histo_range (Operator)
tuple_histo_range
— Calculate the value distribution of a tuple within a certain value range.
Signature
Description
tuple_histo_range
calculates the value distribution Histo
of the Tuple
within the value range [Min
,Max
].
The values for Min
and Max
are
rounded down to the next integer if all entries of the Tuple
are
of type integer
. The value range is divided into NumBins
bins of the same size, which is returned in BinSize
. If a value
lies between two bins the value is assigned to the smaller bin.
If the Tuple
has entries of type real
. If all entries are of type integer
the size of a bin is
computed with
.
Exception: Empty input tuples
If any of the input tuples is empty, an exception is raised.
Attention
If all the data of the Tuple
are of type integer
the value
of BinSize
may cause the following effects:
For BinSize
> 1 multiple consecutive numbers are
assigned to the same bin. If BinSize
is no integer the numbers
are distributed uneven among the bins, e.g., for
BinSize
= 1.5 the first and second number are assigned
to the first bin, the third number is assigned to the second bin, and the
fourth and fifth number are assigned to the third bin. This becomes
noticeable in several peeks in the histogram Histo
. If
BinSize
< 1 some classes are not assigned by any
number, e.g., for BinSize
= 0.5 the first number is
assigned to the first bin and the second number is assigned to the third bin.
The histogram Histo
shows some gaps, which resembles the
structure of a comb.
If the Tuple
has entries of type real
and
Min
= Max
, all entries of the corresponding value are
assigned only to the first bin.
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
Parameters
Tuple
(input_control) number-array →
(real / integer)
Input tuple.
Min
(input_control) number →
(real / integer)
Minimum value.
Max
(input_control) number →
(real / integer)
Maximum value.
Restriction:
Max >= Min
NumBins
(input_control) integer →
(integer)
Number of bins.
Restriction:
NumBins >= 1
Histo
(output_control) histogram(-array) →
(integer)
Histogram to be calculated.
BinSize
(output_control) real →
(real)
Bin size.
Result
If the parameters are valid, the operator tuple_histo_range
returns the value 2 (
H_MSG_TRUE)
. If necessary an exception is raised.
Possible Predecessors
Possible Successors
See also
gray_histo
,
gray_histo_abs
,
gray_histo_range
Module
Foundation