From e124ac52c2824332fa5b32ba92205012d71a1e8f Mon Sep 17 00:00:00 2001 From: Mark Wiebe Date: Thu, 7 Jul 2011 12:04:28 -0500 Subject: NEP: missingdata: Adjust the parenthetical part of the NA/IGNORE defn --- doc/neps/missing-data.rst | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'doc') diff --git a/doc/neps/missing-data.rst b/doc/neps/missing-data.rst index ae72414b9..478d019a5 100644 --- a/doc/neps/missing-data.rst +++ b/doc/neps/missing-data.rst @@ -169,14 +169,14 @@ Because the above discussions of the different concepts and their relationships are tricky to understand, here are more succinct definitions of the terms used in this NEP. -NA (Not Available) +NA (Not Available/Propagate) 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. For sums and products this means to produce NA if any of the inputs - are NA. This is the same as NA in the R project. + are NA. This is the same as NA in the R project. -IGNORE (Skip/Ignore) +IGNORE (Ignore/Skip) A placeholder which should be treated by computations as if no value does or could exist there. For sums, this means act as if the value were zero, and for products, this means act as if the value were one. -- cgit v1.2.1