[R] Histogram from a single column of a data frame

[William Dunlap]

Try
  hist(oded$Breed)

(I suspect that summary(Breed) does not work in your current session either -
perhaps you had a dataset named just Breed or had attached the data.frame
oded in the session where summary(Breed) works.)

Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Fri, Sep 26, 2014 at 10:57 AM, Richard Lerner <richardl at uchicago.edu> wrote:
> Column 7 of "oded" is "Breed". If I enter
>> summary(Breed)
> I get the counts of the numbers in each breed.
> However, if I enter
>
>
> I have tried
>
>> hist($Breed)
> Error: unexpected '$' in "hist($"
>
>> hist(Breed)
> Error in hist(Breed) : object 'Breed' not found
>
>> hist("Breed")
> Error in hist.default("Breed") : 'x' must be numeric
>
> FYI
>
>> colnames(oded)
> [1] "Subject.Name"       "Date"               "Species"
> "Age"                "Sex"
> [6] "Spayed....Neutered" "Breed"              "Breed.Code"
>
> How do I get a histogram of the counts in column 7?
>
>
> Thanks
> Richard
>
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