M2SCI function
Last update : 28/09/2007
mtlb_fftshift - Matlab fftshift emulation function
Description
Matlab and Scilab
fftshift
behave differently in some particular cases:
-
-
-
With character string input: due to the fact that character strings are not considered in the same way in Matlab and Scilab, results can be different for this kind of input.
-
With two inputs: Matlab
fftshift
can work even if
dim
parameter is greater than number of dimensions of first input.
The function
mtlb_fftshift(A[,dim])
is used by
mfile2sci
to replace
fftshift(A[,dim])
when it was not
possible to know what were the inputs while porting Matlab code to Scilab. This function will
determine the correct semantic at run time. If you want to have a
more efficient code it is possible to replace
mtlb_fftshift
calls:
-
-
-
If
A
is not a character string matrix,
mtlb_fftshift(A)
may be replaced by
fftshift(A)
-
If
A
is not a character string matrix and
dim
is not greater than
size(size(a),"*")
,
mtlb_fftshift(A,dim)
may be replaced by
fftshift(A,dim)
Caution:
mtlb_fftshift
has not to be used for hand coded functions.
Authors
-
V.C.