chkPkgs               package:annaffy               R Documentation

_A _F_u_n_c_t_i_o_n _t_o _C_h_e_c_k _f_o_r _a_n_d _I_n_s_t_a_l_l _M_i_s_s_i_n_g _A_n_n_o_t_a_t_i_o_n _P_a_c_k_a_g_e_s

_D_e_s_c_r_i_p_t_i_o_n:

     This is a wrapper function that calls all the necessary functions
     to detect missing annotation packages, ensure all versions are
     compatible with the current version of annaffy,and download
     required packages. This is an internal function and should not be
     called by the end user.

_U_s_a_g_e:

     chkPkgs(pkg)

_A_r_g_u_m_e_n_t_s:

     pkg: The chip-level annotation package

_D_e_t_a_i_l_s:

     This function checks for the correct chip-level package, and if it
     is not installed will download and install. In the case that there
     are two versions of the same package installed, the function will
     return the library location of the package with the correct
     version.

_V_a_l_u_e:

     This function doesn't return anything; it is only called for its
     side effect of loading or installing a chip-level annotation
     package.

_A_u_t_h_o_r(_s):

     James W. MacDonald <jmacdon@med.umich.edu> and Jeff Gentry
     <jgentry@jimmy.harvard.edu>