capstring                package:DAAG                R Documentation

_C_o_n_v_e_r_t_s _i_n_i_t_i_a_l _c_h_a_r_a_c_t_e_r _o_f _a _s_t_r_i_n_g _t_o _u_p_p_e_r _c_a_s_e

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

     This function is useful for use before plotting, if one wants
     capitalized axis labels or factor levels.

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

     capstring(names)

_A_r_g_u_m_e_n_t_s:

   names: a character vector

_V_a_l_u_e:

a character vector with upper case initial values: 

_A_u_t_h_o_r(_s):

     W.J. Braun

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

     capstring(names(tinting)[c(3,4)])

     library(lattice)
     levels(tinting$agegp) <- capstring(levels(tinting$agegp))
     xyplot(csoa ~ it | sex * agegp, data=tinting) 

