Hello R-Masters,
I have a list 's' with three elements, as shown below. I want to recode a.a,
a.a2, and a.a3 to NA if the value in a.a is less than 3.
I reivewed my Modern Applied Statistic Book, the online help and did some
searching of R-help on the internet. I explored unlist and as.list.data.frame
in an attempt to isolate the third element of the list s, but this was not
helpful. Any help would be appreciated.
> dim(s)
[1] 342 3
> names(s)
[1] "scan" "time" "a"
> s
scan time a.a a.a2 a.a3
202 Plastic lids Plastic lids NaN NaN NaN
195 Plastic lids Cookware lids 44 31 58
205 Plastic lids Seasoning packets 9 4 20
191 Plastic lids Baking sheets 15 7 27
209 Plastic lids Utensils 9 4 20
194 Plastic lids Cell phones 0 0 7
193 Plastic lids Canned goods 0 0 7
197 Plastic lids Hand/dish towel 3 0 12
Thank you.
Greg Blevins
The Market Solutions Group
Windows xp, 2.1.1
Gregory L. Blevins
Vice President, Partner
The Market Solutions Group, Inc.
[EMAIL PROTECTED]
Office phone: 612 392-3163
Cell phone: 612 251-0232
"What is at the beginning but a small error, swells to huge proportions at the
close." Aristotle
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