masteringmetrics | R code for Angrist & Pischke Mastering Metrics
kandi X-RAY | masteringmetrics Summary
kandi X-RAY | masteringmetrics Summary
R code for Angrist & Pischke Mastering Metrics
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QUESTION
I am trying to create a treatment dummy for the states whose 1970 legal1820
is different from their legal1820
in 1979. So I need the proper syntax for somethihng like this treat = ifelse((legal1820 when (year == 1970)) != (legal1820 when (year == 1979)) , 1,0)
this is the data I am using
...ANSWER
Answered 2020-Nov-28 at 14:29Is this what you are looking for?
QUESTION
Like the title says, when I run the code inside the R markdown file everything works fine and I do not get any errors but when I try to Knit I get an error.
This is the code chunk where it says the first error is happening (this failing is obviously causing a whole chain of other errors afterwards because dta1 is not being created).
...ANSWER
Answered 2020-Nov-27 at 21:01The issue is with count
which expects a tibble/data.frame
as input and not a column/vector. It should be sum
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