arrayfire.index module¶

Index and Seq classes used in indexing operations.

classarrayfire.index.Index(idx)[source]¶

Bases:_ctypes.Structure

Attributes

idx

Structure/Union member

isBatch

Structure/Union member

isSeq

Structure/Union member

idx¶

Structure/Union member

isBatch¶

Structure/Union member

isSeq¶

Structure/Union member

classarrayfire.index.ParallelRange(start,stop=None,step=None)[source]¶

Bases:arrayfire.index.Seq

Class used to parallelize for loop.

Inherits from Seq.

Parameters

start: number

Beginning of parallel range.

stopnumber

End of parallel range.

stepnumber

Step size for parallel range.

Examples

>>>importarrayfireasaf>>>a=af.randu(3,3)>>>b=af.randu(3,1)>>>c=af.constant(0,3,3)>>>foriiinaf.ParallelRange(3):...c[:,ii]=a[:,ii]+b...>>>af.display(a)[3 3 1 1]    0.4107     0.1794     0.3775    0.8224     0.4198     0.3027    0.9518     0.0081     0.6456

>>>af.display(b)[3 1 1 1]    0.7269    0.7104    0.5201

>>>af.display(c)[3 3 1 1]    1.1377     0.9063     1.1045    1.5328     1.1302     1.0131    1.4719     0.5282     1.1657

Attributes

S: slice

Methods

next()

Function called by the iterator in Python 2

next()[source]¶

Function called by the iterator in Python 2

classarrayfire.index.Seq(S)[source]¶

Bases:_ctypes.Structure

arrayfire equivalent of slice

Parameters

S: slice or number.

Attributes

begin: number

Start of the sequence.

endnumber

End of sequence.

stepnumber

Step size.

begin¶

Structure/Union member

end¶

Structure/Union member

step¶

Structure/Union member