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 >

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 abili

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

2011-07-06 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

2011-07-06 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

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

2011-07-06 Thread Lluís
Mark Wiebe writes: > On Wed, Jul 6, 2011 at 12:41 PM, Pierre GM 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,

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 th

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 wrote: > > > On Wed, Jul 6, 2011 at 10:44 AM, Matthew Brett > wrote: >> >> Hi, >> >> On Wed, Jul 6, 2011 at 6:11 PM, Benjamin Root wrote: >> > >> > >> > On Wed, Jul 6, 2011 at 12:01 PM, Matthew Brett >> > wrote: >> >> >> >> Hi, >> >

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 wrote: > On Wednesday, July 6, 2011, Christopher Jordan-Squire > wrote: > > > > > > On Wed, Jul 6, 2011 at 5:03 PM, Benjamin Root wrote: > > > > On Wednesday, July 6, 2011, Dag Sverre Seljebotn > > wrote: > >> On 07/06/2011 08:25 PM, Christopher Ba

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

2011-07-06 Thread Benjamin Root
On Wednesday, July 6, 2011, Christopher Jordan-Squire wrote: > > > On Wed, Jul 6, 2011 at 5:03 PM, Benjamin Root wrote: > > On Wednesday, July 6, 2011, Dag Sverre Seljebotn > wrote: >> On 07/06/2011 08:25 PM, Christopher Barker wrote: >>> Mark Wiebe wrote: 1) NA vs IGNORE and bitpattern vs

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 wrote: > On Wednesday, July 6, 2011, Dag Sverre Seljebotn > 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 bi

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 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 >>> IGNORE as mask

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 bitpatter

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 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

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 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 lost > >

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 wrote: > Hi, > > On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe 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

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 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 > dif

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 wrote: > Hi, > > On Wed, Jul 6, 2011 at 5:48 PM, Peter > wrote: > > On Wed, Jul 6, 2011 at 5:38 PM, Matthew Brett > wrote: > >> > >> Hi, > >> > >> On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe wrote: > >>> It appears to me that one of the biggest reas

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 Christopher Jordan-Squire
On Wed, Jul 6, 2011 at 10:44 AM, Matthew Brett wrote: > Hi, > > On Wed, Jul 6, 2011 at 6:11 PM, Benjamin Root wrote: > > > > > > On Wed, Jul 6, 2011 at 12:01 PM, Matthew Brett > > wrote: > >> > >> Hi, > >> > >> On Wed, Jul 6, 2011 at 5:48 PM, Peter > >> wrote: > >> > On Wed, Jul 6, 2011 at 5:38

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 wrote: > > > On Wed, Jul 6, 2011 at 12:01 PM, Matthew Brett > wrote: >> >> Hi, >> >> On Wed, Jul 6, 2011 at 5:48 PM, Peter >> wrote: >> > On Wed, Jul 6, 2011 at 5:38 PM, Matthew Brett >> > wrote: >> >> >> >> Hi, >> >> >> >> On Wed, Jul 6, 2011

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 Benjamin Root
On Wed, Jul 6, 2011 at 12:01 PM, Matthew Brett wrote: > Hi, > > On Wed, Jul 6, 2011 at 5:48 PM, Peter > wrote: > > On Wed, Jul 6, 2011 at 5:38 PM, Matthew Brett > wrote: > >> > >> Hi, > >> > >> On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe wrote: > >>> It appears to me that one of the biggest reas

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 wrote: > On Wed, Jul 6, 2011 at 5:38 PM, Matthew Brett wrote: >> >> Hi, >> >> On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe wrote: >>> It appears to me that one of the biggest reason some of us have been talking >>> past each other in the discussions is th

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 wrote: > > Hi, > > On Wed, Jul 6, 2011 at 4:40 PM, Mark Wiebe 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 t

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 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, I > feel t

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 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, I > feel the de

[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