crowd                 package:survey                 R Documentation

_H_o_u_s_e_h_o_l_d _c_r_o_w_d_i_n_g

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

     A tiny dataset from the VPLX manual.

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

     data(crowd)

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

     A data frame with 6 observations on the following 5 variables.

     _r_o_o_m_s Number of rooms in the house

     _p_e_r_s_o_n Number of people in the household

     _w_e_i_g_h_t Sampling weight

     _c_l_u_s_t_e_r Cluster number

     _s_t_r_a_t_u_m Stratum number

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

     Manual for VPLX, Census Bureau.

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

     data(crowd)

     ## Example 1-1
     i1.1<-as.svrepdesign(svydesign(id=~cluster, weight=~weight,data=crowd))
     i1.1<-update(i1.1, room.ratio=rooms/person,
     overcrowded=factor(person>rooms))
     svymean(~rooms+person+room.ratio,i1.1)
     svytotal(~rooms+person+room.ratio,i1.1)
     svymean(~rooms+person+room.ratio,subset(i1.1,overcrowded==TRUE))
     svytotal(~rooms+person+room.ratio,subset(i1.1,overcrowded==TRUE))

     ## Example 1-2
     i1.2<-as.svrepdesign(svydesign(id=~cluster,weight=~weight,strata=~stratum, data=crowd))
     svymean(~rooms+person,i1.2)
     svytotal(~rooms+person,i1.2)

