Regensburg             package:Fahrmeir             R Documentation

_J_o_b _E_x_p_e_c_t_a_t_i_o_n

_D_e_s_c_r_i_p_t_i_o_n:

     A sample of psychology students was asked if they expected to find
     adecuate employment after graduation.

_U_s_a_g_e:

     data(Regensburg)

_F_o_r_m_a_t:

     A data frame with 30 observations on the following 4 variables.

     _y response categories

     _n number of students with this response in group

     _a_g_e age in years

     _l_a_g_e natural log of age

_D_e_t_a_i_l_s:

     In a study on the perspectives of students, psychology students at
     the university of Regensburg have been asked if they expect to 
     find an adequate employment after getting their degree.  The
     response categories where ordered with respect to their
     expectation. Categories where "don't expect adequate employment" -
     1,  "not sure" - 2, "immediately after the degree" - 3.

_S_o_u_r_c_e:

     Ludwig Fahrmeir, Gerhard Tutz (1994):  Multivariate Statistical
     Modelling Based on Generalized Linear Models. Springer Series in
     Statistics.  Springer Verlag. New-York  Berlin Heidelberg

_R_e_f_e_r_e_n_c_e_s:

_E_x_a_m_p_l_e_s:

     str(Regensburg)
     summary(Regensburg)
     # Example 3.5 page 83 in book:
     library(MASS)
     Regensburg$y <- ordered(Regensburg$y)
     Regensburg.polr <- polr(y~lage, data=Regensburg)
     summary(Regensburg.polr)
     class(Regensburg.polr)

