[R] List of occuring values

[William Dunlap]

unique(x) will give you the distinct values in x.  table(x) will give you
the distrinct values and their frequencies as an array with dimnames.
 data.frame(table(x)) will give you a 2-column data.frame with the distinct
values and their frequencies.

> values <- c("Small", "Large", "Large", "Large")
> unique(values)
[1] "Small" "Large"
> tblValues <- table(values)
> tblValues
values
Large Small
    3     1
> tblValues[tblValues > 2, drop=FALSE]
values
Large
    3
>
> dfValues <- data.frame(tblValues)
> dfValues
  values Freq
1  Large    3
2  Small    1
> subset(dfValues, Freq > 2)
  values Freq
1  Large    3
>
> factorValues <- factor(values,
levels=c("Small","Medium","Large","XLarge"))
> data.frame(table(factorValues))
  factorValues Freq
1        Small    1
2       Medium    0
3        Large    3
4       XLarge    0


Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Thu, Sep 21, 2017 at 6:01 AM, Ferri Leberl <ferri.leberl at gmx.at> wrote:

>
> Dear all,
> ftable produces a list of the frequencies of all occuring values.
> But how about the occuring values?
> How can I retrieve a list of occuring values?
> How can I retrieve a table with both the list of occuring values and their
> respective frequencies?
> Thank you in advance,
> Yours, Ferri
>
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