Comments (3)
lrberge
commented on August 18, 2024
Thanks for reporting. This bug is now fixed.
from fixest.
tlcaputi
commented on August 18, 2024
Don't mean to bother you. Just wanted to let you know: something in your fix seems to make it impossible to define the bins list outside of the regression.
library(fixest)
# Create a sample dataset
xx = (-7):7
yy = rep(c(0:1), each=length(xx))
d = data.frame(xx=rep(xx, times=2), yy = yy, dv = runif(length(yy)))
# Define categories
bin_categories = list("<=-5" = ~x <= -5, ">=5" = ~x >= 5)
# This doesn't work:
feols(dv ~ i(xx, yy, ref = -1, bin = bin_categories), data = d)
Error message:
Error in feols(dv ~ i(xx, yy, ref = -1, bin = bin_categories), data = d) :
The variable 'bin_categories' is in the RHS of the formula but not in the data set.
Of course, a user can just define the list in the regression and then it works fine.
Thanks so much for the original fix and for this absolutely incredible package!
from fixest.
lrberge
commented on August 18, 2024
For the record, the fact that one cannot use variables from the global environment is on purpose (it improves quality control and avoids many problems). One can only use scalars from the global environment, which are then hard coded in the formula.
I guess you know it, but in your case you could use d$xxx = bin(d$xx, bin_categories) to bin the variable ex ante and avoid doing it at run time:
d$xxx = bin(d$xx, bin_categories)
feols(dv ~ i(xxx, yy, ref = -1), data = d)
#> OLS estimation, Dep. Var.: dv
#> Observations: 30
#> Standard-errors: IID
#> Estimate Std. Error t value Pr(>|t|)
#> (Intercept) 0.544425 0.072238 7.536598 4.0189e-07 ***
#> xxx::<=-5:yy 0.100750 0.181794 0.554201 5.8591e-01
#> xxx::-4:yy -0.384185 0.297843 -1.289892 2.1257e-01
#> xxx::-3:yy -0.144298 0.297843 -0.484477 6.3359e-01
#> xxx::-2:yy -0.520490 0.297843 -1.747533 9.6688e-02 .
#> xxx::0:yy -0.266031 0.297843 -0.893193 3.8293e-01
#> xxx::1:yy -0.077570 0.297843 -0.260438 7.9733e-01
#> xxx::2:yy 0.085091 0.297843 0.285692 7.7821e-01
#> xxx::3:yy 0.348274 0.297843 1.169320 2.5674e-01
#> xxx::4:yy 0.327161 0.297843 1.098434 2.8574e-01
#> xxx::>=5:yy 0.164174 0.181794 0.903078 3.7779e-01
#> ---
#> Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
#> RMSE: 0.229953 Adj. R2: 0.011107Thanks so much for the original fix and for this absolutely incredible package!
Thanks a lot! :-)
from fixest.
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