Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-07 Thread Eric Firing
On 07/06/2011 07:51 PM, Chris Barker wrote: On 7/6/11 11:57 AM, Mark Wiebe wrote: On Wed, Jul 6, 2011 at 1:25 PM, Christopher Barker Is this really true? if you use a bitpattern for IGNORE, haven't you just lost the ability to get the original value back if you want to stop

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-07 Thread Pierre GM
On Jul 7, 2011, at 8:46 AM, Eric Firing wrote: On 07/06/2011 07:51 PM, Chris Barker wrote: On 7/6/11 11:57 AM, Mark Wiebe wrote: On Wed, Jul 6, 2011 at 1:25 PM, Christopher Barker Is this really true? if you use a bitpattern for IGNORE, haven't you just lost the ability to get the

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-07 Thread Dag Sverre Seljebotn
On 07/07/2011 07:51 AM, Chris Barker wrote: On 7/6/11 11:57 AM, Mark Wiebe wrote: On Wed, Jul 6, 2011 at 1:25 PM, Christopher Barker Is this really true? if you use a bitpattern for IGNORE, haven't you just lost the ability to get the original value back if you want to stop

[Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Mark Wiebe
It appears to me that one of the biggest reason some of us have been talking past each other in the discussions is that different people have different definitions for the terms being used. Until this is thoroughly cleared up, I feel the design process is tilting at windmills. In the interests of

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Peter
On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe mwwi...@gmail.com wrote: It appears to me that one of the biggest reason some of us have been talking past each other in the discussions is that different people have different definitions for the terms being used. Until this is thoroughly cleared up,

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Matthew Brett
Hi, On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe mwwi...@gmail.com wrote: It appears to me that one of the biggest reason some of us have been talking past each other in the discussions is that different people have different definitions for the terms being used. Until this is thoroughly cleared

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Peter
On Wed, Jul 6, 2011 at 5:38 PM, Matthew Brett matthew.br...@gmail.com wrote: Hi, On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe mwwi...@gmail.com wrote: It appears to me that one of the biggest reason some of us have been talking past each other in the discussions is that different people have

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Matthew Brett
Hi, On Wed, Jul 6, 2011 at 5:48 PM, Peter numpy-discuss...@maubp.freeserve.co.uk wrote: On Wed, Jul 6, 2011 at 5:38 PM, Matthew Brett matthew.br...@gmail.com wrote: Hi, On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe mwwi...@gmail.com wrote: It appears to me that one of the biggest reason some

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Benjamin Root
On Wed, Jul 6, 2011 at 12:01 PM, Matthew Brett matthew.br...@gmail.comwrote: Hi, On Wed, Jul 6, 2011 at 5:48 PM, Peter numpy-discuss...@maubp.freeserve.co.uk wrote: On Wed, Jul 6, 2011 at 5:38 PM, Matthew Brett matthew.br...@gmail.com wrote: Hi, On Wed, Jul 6, 2011 at 4:40 PM, Mark

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Pierre GM
Ah, semantics... On Jul 6, 2011, at 5:40 PM, Mark Wiebe wrote: NA (Not Available) A placeholder for a value which is unknown to computations. That value may be temporarily hidden with a mask, may have been lost due to hard drive corruption, or gone for any number of reasons.

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Matthew Brett
Hi, On Wed, Jul 6, 2011 at 6:11 PM, Benjamin Root ben.r...@ou.edu wrote: On Wed, Jul 6, 2011 at 12:01 PM, Matthew Brett matthew.br...@gmail.com wrote: Hi, On Wed, Jul 6, 2011 at 5:48 PM, Peter numpy-discuss...@maubp.freeserve.co.uk wrote: On Wed, Jul 6, 2011 at 5:38 PM, Matthew Brett

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Christopher Jordan-Squire
On Wed, Jul 6, 2011 at 10:44 AM, Matthew Brett matthew.br...@gmail.comwrote: Hi, On Wed, Jul 6, 2011 at 6:11 PM, Benjamin Root ben.r...@ou.edu wrote: On Wed, Jul 6, 2011 at 12:01 PM, Matthew Brett matthew.br...@gmail.com wrote: Hi, On Wed, Jul 6, 2011 at 5:48 PM, Peter

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Christopher Barker
Mark Wiebe wrote: 1) NA vs IGNORE and bitpattern vs mask are completely independent. Any combination of NA as bitpattern, NA as mask, IGNORE as bitpattern, and IGNORE as mask are reasonable. Is this really true? if you use a bitpattern for IGNORE, haven't you just lost the ability to get

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Mark Wiebe
On Wed, Jul 6, 2011 at 12:01 PM, Matthew Brett matthew.br...@gmail.comwrote: Hi, On Wed, Jul 6, 2011 at 5:48 PM, Peter numpy-discuss...@maubp.freeserve.co.uk wrote: On Wed, Jul 6, 2011 at 5:38 PM, Matthew Brett matthew.br...@gmail.com wrote: Hi, On Wed, Jul 6, 2011 at 4:40 PM, Mark

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Mark Wiebe
On Wed, Jul 6, 2011 at 11:33 AM, Peter numpy-discuss...@maubp.freeserve.co.uk wrote: On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe mwwi...@gmail.com wrote: It appears to me that one of the biggest reason some of us have been talking past each other in the discussions is that different people

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Mark Wiebe
On Wed, Jul 6, 2011 at 11:38 AM, Matthew Brett matthew.br...@gmail.comwrote: Hi, On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe mwwi...@gmail.com wrote: It appears to me that one of the biggest reason some of us have been talking past each other in the discussions is that different people

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Mark Wiebe
On Wed, Jul 6, 2011 at 12:41 PM, Pierre GM pgmdevl...@gmail.com wrote: Ah, semantics... On Jul 6, 2011, at 5:40 PM, Mark Wiebe wrote: NA (Not Available) A placeholder for a value which is unknown to computations. That value may be temporarily hidden with a mask, may have been

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Mark Wiebe
On Wed, Jul 6, 2011 at 1:25 PM, Christopher Barker chris.bar...@noaa.govwrote: Mark Wiebe wrote: 1) NA vs IGNORE and bitpattern vs mask are completely independent. Any combination of NA as bitpattern, NA as mask, IGNORE as bitpattern, and IGNORE as mask are reasonable. Is this really

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Dag Sverre Seljebotn
On 07/06/2011 08:25 PM, Christopher Barker wrote: Mark Wiebe wrote: 1) NA vs IGNORE and bitpattern vs mask are completely independent. Any combination of NA as bitpattern, NA as mask, IGNORE as bitpattern, and IGNORE as mask are reasonable. Is this really true? if you use a bitpattern for

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Benjamin Root
On Wednesday, July 6, 2011, Dag Sverre Seljebotn d.s.seljeb...@astro.uio.no wrote: On 07/06/2011 08:25 PM, Christopher Barker wrote: Mark Wiebe wrote: 1) NA vs IGNORE and bitpattern vs mask are completely independent. Any combination of NA as bitpattern, NA as mask, IGNORE as bitpattern, and

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Christopher Jordan-Squire
On Wed, Jul 6, 2011 at 5:03 PM, Benjamin Root ben.r...@ou.edu wrote: On Wednesday, July 6, 2011, Dag Sverre Seljebotn d.s.seljeb...@astro.uio.no wrote: On 07/06/2011 08:25 PM, Christopher Barker wrote: Mark Wiebe wrote: 1) NA vs IGNORE and bitpattern vs mask are completely independent.

[Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Benjamin Root
On Wednesday, July 6, 2011, Christopher Jordan-Squire cjord...@uw.edu wrote: On Wed, Jul 6, 2011 at 5:03 PM, Benjamin Root ben.r...@ou.edu wrote: On Wednesday, July 6, 2011, Dag Sverre Seljebotn d.s.seljeb...@astro.uio.no wrote: On 07/06/2011 08:25 PM, Christopher Barker wrote: Mark Wiebe

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Christopher Jordan-Squire
On Wed, Jul 6, 2011 at 5:38 PM, Benjamin Root ben.r...@ou.edu wrote: On Wednesday, July 6, 2011, Christopher Jordan-Squire cjord...@uw.edu wrote: On Wed, Jul 6, 2011 at 5:03 PM, Benjamin Root ben.r...@ou.edu wrote: On Wednesday, July 6, 2011, Dag Sverre Seljebotn

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Matthew Brett
Hi, On Wed, Jul 6, 2011 at 7:10 PM, Christopher Jordan-Squire cjord...@uw.edu wrote: On Wed, Jul 6, 2011 at 10:44 AM, Matthew Brett matthew.br...@gmail.com wrote: Hi, On Wed, Jul 6, 2011 at 6:11 PM, Benjamin Root ben.r...@ou.edu wrote: On Wed, Jul 6, 2011 at 12:01 PM, Matthew Brett

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Gary Strangman
(snip discussion of open kimono) On the other hand, to try and conceal these implementation differences, seems to me to break my feeling for numpy arrays, and make me feel I have an object that is rather magic, that I don't fully understand, and for which clever stuff is going on, under the

Re: [Numpy-discussion] using the same vocabulary for missing value ideas

2011-07-06 Thread Chris Barker
On 7/6/11 11:57 AM, Mark Wiebe wrote: On Wed, Jul 6, 2011 at 1:25 PM, Christopher Barker Is this really true? if you use a bitpattern for IGNORE, haven't you just lost the ability to get the original value back if you want to stop ignoring it? Maybe that's not inherent to what an