From: Francesc A. <fa...@ca...> - 2004-12-21 13:07:07
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Hi, I'm a bit lost with the next example: In [28]: from numarray import * In [29]: a=3Darange(10) In [30]: a.iscontiguous() Out[30]: 1 In [31]: b=3Da[::2] In [32]: b.iscontiguous() Out[32]: 0 That seems to suggest that b shares the same data buffer than a. Indeed: In [36]: a._data Out[36]: <memory at 0x082494d8 with size:0x00000028 held by object 0xb762c2= 60 aliasing object 0x00000000> In [37]: b._data Out[37]: <memory at 0x082494d8 with size:0x00000028 held by object 0xb762c2= 60 aliasing object 0x00000000> At this point, I believe that _bytestride should be different on both arrays, but: In [33]: a._bytestride Out[33]: 4 In [34]: b._bytestride Out[34]: 4 while I expected to find b._bytestride equal to 8. Is that an error or a lack of understanding on my part? Cheers, =2D-=20 =46rancesc Altet =A0 >qo< =A0 http://www.carabos.com/ C=E1rabos Coop. V. =A0 V =A0V =A0 Enjoy Data =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 "" |