loadDepends            package:reposTools            R Documentation

_A _f_u_n_c_t_i_o_n _t_o _l_o_a_d _p_a_c_k_a_g_e/_v_i_g_n_e_t_t_e _d_e_p_e_n_d_e_n_c_i_e_s

_D_e_s_c_r_i_p_t_i_o_n:

     Given a package or a vignette, will determine any dependencies and
     load the required packages - as well as alerting the user to any
     unresolved dependencies.

_U_s_a_g_e:

     loadDepends(x, force = FALSE, recursive = TRUE, local = TRUE)

_A_r_g_u_m_e_n_t_s:

       x: The object to check

   force: If TRUE, will continue even if not all dependencies are
          installed

recursive: Whether or not to look at indirect dependencies

   local: Whether or not to only search locally or to use the internet
          to find unresolved dependencies

_D_e_t_a_i_l_s:

     This function will first determine if the object is an installed
     package or a vignette.  In either case, it will extract a listing
     of all dependencies (both the names and any versioning
     requirements). If not all of the dependencies are met, the
     function will halt with an error and report which packages were
     not met - unless the 'force' option is set to 'TRUE'.  Otherwise,
     all of the installed dependencies will be loaded.

_V_a_l_u_e:

     A character vector listing the loaded packages.  If there were no
     installed dependencies to load, an empty vector is returned.

_A_u_t_h_o_r(_s):

     Jeff Gentry

_E_x_a_m_p_l_e_s:

     ## Using 'local==TRUE' in case the user doesn't have an internet
     ## connection available. 
        loadDepends("reposTools", local=TRUE)