disk.frame is AMAZING! + quick Q ref dfglm() #349

Thanks for disk.frame.
EXCELLENT!.

Q:
In pg:
https://diskframe.com/articles/07-glm.html
the GLM iris example for Logistic regression
works great!.

But...
when I tried the # commented-out line
(shown in that same iris example),
I get an error (syntax?):

iris_model = dfglm(Species == "setosa" ~ , data = iris.df, family=binomial())
Error: unexpected ',' in " iris_model = dfglm(Species == "setosa" ~ ,"

Help!
What's missing in that example syntax?.

SFd99
San Francisco
R 4.1.1 + latest Rstudio
Ubuntu LINUX 20.04
disk.frame V 0.50
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