Vladimir Eremeev wrote:
>
> That is
>
> C.Rosa wrote:
>>
>> for (i in c("UK","USA"))
>> output{i}<-summary(lm(y{i} ~ x{i}))
>>
>
> for (i in c("UK","USA")) {
> lm.txt<-paste("output",i,"<-","lm(","y",i,"~","x",i,")",sep="") # 1.
> produce a character string containing needed expression
> eval(parse(text=lm.txt))
> # 2. parse and evaluate it
> }
>
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