[R] functions for special na handling?

Robert Sams Robert at sanctumfi.com
Mon Oct 25 14:28:29 CEST 2004


hi,

i need a function that can replace na's in univariate ts objects with a value interpolated linearly 
using the adjacent non-na values. for example, the function i need (myfun) would do the following

> x <- ts(10,11.4,NA,12,9.7)
> y <- myfun(x)
> y
10 11.4 11.7 12 9.7

i can code an na.action method myself to accomplish this, but has someone else already coded routines 
of this nature?

many thanks,
robert


Robert Sams

SANCTUM FI LLP
Charles House
18B Charles Street
Mayfair
London W1J 5DU
Tel: +44 (0) 207 667 6360
Dir: +44 (0) 207 667 6363
fax: +44 (0) 207 667 6460
email: robert at sanctumfi.com

Authorised and Regulated by the FSA. 

Sending encrypted mail:

See http://pgp.mit.edu (search string 'sanctumfi') for updates.

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org
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=6Y3T
-----END PGP PUBLIC KEY BLOCK-----




More information about the R-help mailing list