Multinomial Logistic Regression (parameters distribution)

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Multinomial Logistic Regression (parameters distribution)

mc1977@katamail.com
Dear R-Users,
I applied the function multinom() to perform a multinomial logistic regression analysis on the following data:

   age class1 class2 class3
 1 17.0   543     147     10
 2 22.0   412     254     47
 3 27.0   388     332     90
 4 32.0   487     425    146
 5 37.0   412     380    176
 6 42.0   306     376    228
 7 47.0   225     352    296
 8 52.0   164     296    375
 9 57.0   146     211    346
10 62.0    69     132    240
11 67.0   138     190    710
12 72.0    26      23    197

where age is the predictor. I would need to obtain the distribution of the model parameters that
should be a multinormal and simultaneous confidence interval for them. I would need also to calculate the
simultaneous confidence intervals for the multinomial proportions.
Could you please be so kind to suggest how to do and if there is already any function in R?
thank you for your time

Maurizio

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