Hi Cathy,
I interpreted your situation a little differently than the other
responses. Please ignore this if their suggestions solved your
problem.
I assumed you have abundance where available, but otherwise it wasn't
recorded--not as NA, just unrecorded. You want to fill in the missing
"rows" w
Dear Cathy,
Try this:
# Some data
set.seed(123)
DF <- data.frame(
Plot=sample(10),
Location = sample(10),
SpeciesName = sample(LETTERS[1:10]),
SpeciesNumber = sample(10),
abundance = rnorm(10),
treatment = sample(letters[1:3],5, replace=TRUE)
)
# M
On 01-May-09 17:20:08, Collins, Cathy wrote:
> Greetings,
> I am new to R and am hoping to get some tips from experienced
> R-programmers.
>
> I have a dataset that I've read into R as a dataframe. There are 5
> columns: Plot location,species name, a species number code (unique
> to each species
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