fixed effects r

[help]

hi here is my code

plm(years_alive ~ happy_binary, data = humans, index = c("location"), model = "within"))

im trying to see how whether if you are happy or not impacts ur life span. im controlling for location fixed effects with model "within". my issue is this error:

Error in (function (.. row.names = NULL, check.rows = FALSE, check.names = TRUE, : 
arguments imply differing number of rows: 1,0

this is confusing since there is no NA in "location" , "years_alive", and "happy_binary". any idea what I can do to fix this. thank you !!!. I dont get this error when using regular regression

[williaml]

Hi, can you provide a reproducible example of your dataset?

FAQ: How to do a minimal reproducible example ( reprex ) for beginners

A minimal reproducible example consists of the following items: A minimal dataset, necessary to reproduce the issue The minimal runnable code necessary to reproduce the issue, which can be run on the given dataset, and including the necessary information on the used packages. Let's quickly go over each one of these with examples: Minimal Dataset (Sample Data) You need to provide a data frame that is small enough to be (reasonably) pasted on a post, but big enough to reproduce your issue. Let's say, as an example, that you are working with the iris data frame head(iris) #> Sepal.Length Sepal.Width Petal.Length Petal.Width Species #> 1 5.1 3.5 1.4 0.…