[R] Simple one

[JoK LoQ]

Ben

 that subset(..) works, and it solves all my problems. thnks!



Ben Bolker wrote:
> 
> 
> 
> JoK LoQ wrote:
>> 
>> Just a quickly beginner's question. 
>> 
>> I wanna find the mean only from the values from a column related to
>> specific values from another one. Like, theres a 'region' column, i want
>> the mean of the value on 'profit' column only from "south" sells from
>> 'region' column
>> 
> 
> mean(x[x$region=="south",]$profit)
> 
> or  (untested)
> 
> mean(subset(x,region=="south",select=profit))
> 

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