Dear all, 
I spent some time with trial and error and googling my Error and I didn't find 
anything, so I was hoping you could help me. 

I'm fitting a linear model and want to change the default value of the 
attribute 'control'. If omitting it, about 50% of my models stop with an 
"algorithm didn't converge" error. 

Below is of course not the actual code but a really simplified version that 
sums up what I need to do.


import rpy 

# some x values
a = [12, 89, 93, 14]
# binary vector as output
b = [1,0,0,1]

rpy.set_default_mode(rpy.NO_CONVERSION)
formula = rpy.r("Y~X")
d = rpy.r.data_frame(X = a, Y = b)

model = rpy.r.glm(formula, data = d, family = 'binomial', control = 
rpy.r.glm.control(maxit = 500))

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'Robj' object has no attribute 'control'


I'm really hoping this is just a silly error on my part and someone can help me 
out. 
Thanks a lot! 
Fanny 

 
 



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