

_O_n-_d_e_m_a_n_d _l_o_a_d_i_n_g _o_f _p_a_c_k_a_g_e_s

     autoload(name, file)
     autoloader(name, file)
     .AutoloadEnv

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

    name: string giving the name of an object

    file: string giving the name of a package containing the
          object

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

     `autoload' creates a promise-to-evaluate `autoloader'
     and stores it with name `name' in `.AutoloadEnv'
     environment.  When R attempts to evaluate `name',
     `autoloader' is run, the package is loaded and `name'
     is re-evaluated in the new package's environment.  The
     result is that R behaves as if `file' was loaded but it
     does not occupy memory.

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

     see description

_S_e_e _A_l_s_o:

     `delay', `library'

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

     autoload("line","eda")
     search()
     ls("Autoloads")
     all(ls("Autoloads") == ls(envir = .AutoloadEnv))
     data(cars)
     plot(cars)
     z<-line(cars)
     abline(coef(z))
     search()
     detach("package:eda")
     search()
     z<-line(cars)
     search()

