R help - Jun 2016 - R intersect()

Hi all,
I have the following df:


    licenseY      :int  41006 41013 41044 41046 41067 41166 41202 41262 41274
41290
    licenseZ      :int  41006 41013 41018 41044 41046 41067 41111 41200 41262
41272
I needed the common values in both license columns so I used :
    

    intersect(df$licenseY,df$licenseZ)
now I want a command to return me values from licenseY that are not in
intersect(). Does anyone know how should I do this?
Thanks for any help!
Elahe

>     licenseY      :int  41006 41013 41044 41046 41067 41166 41202 41262
41274 41290
>     licenseZ      :int  41006 41013 41018 41044 41046 41067 41111 41200
41262 41272
> ... I want a command to return me values from licenseY that are not in
> intersect(). Does anyone know how should I do this?
Consider 
setdiff( licenseY, licenseX) 

or, more or less equivalently,
licenseY[ (!licenseY %in% licenseX) ]

S Ellison


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