[R] Warning message help

tom wright tom at maladmin.com
Mon Nov 21 12:16:55 CET 2005


Shouldnt that be
effort[Gear==300]<-(DIST_TOW*7412)
I think we're going to need to see some sample datasets to tell you any
more.

On Mon, 2005-21-11 at 10:44 -0500, Guenther, Cameron wrote:
> I am trying to great a new column of effort data from an existing vector
> of gears used.
> It is a simple code where 
> 
> effort[Gear==300]=(DIST_TOW*7412)
> effort[Gear==301]=(DIST_TOW*7412)
> 
> The code appears to work for some of the data but fails for others and
> inserts a NA value
> 
> I also get this warning message
> 
> Warning message:
> number of items to replace is not a multiple of replacement length 
> 
> Can anybody tell me what this means.
> thanks
> 
> Cameron Guenther 
> Associate Research Scientist
> FWC/FWRI, Marine Fisheries Research
> 100 8th Avenue S.E.
> St. Petersburg, FL 33701
> (727)896-8626 Ext. 4305
> cameron.guenther at myfwc.com
> 
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