readChp              package:affxparser              R Documentation

_A _f_u_n_c_t_i_o_n _t_o _r_e_a_d _A_f_f_y_m_e_t_r_i_x _C_H_P _f_i_l_e_s

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

     This function will parse any type of CHP file and return the
     results in a list.  The contents of the list will depend on the
     type of CHP file that is parsed and readers are referred to
     Affymetrix documentation of what should be there, and how to
     interpret it.

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

     readChp(filename, withQuant = TRUE)

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

filename: The name of the CHP file to read. 

withQuant: A boolean value, currently largely unused. 

_D_e_t_a_i_l_s:

     This is an interface to the Affymetrix Fusion SDK.  The Affymetrix
     documentation should be consulted for explicit details.

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

     A list is returned. The contents of the list depend on the type of
     CHP file  that was read.  Users may want to translate the
     different outputs into specific containers.

_T_r_o_u_b_l_e_s_h_o_o_t_i_n_g:

     It is considered a bug if the file contains information not
     accessible by this function, please report it.

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

     R. Gentleman

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

     'readCel'

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

     if (require("AffymetrixDataTestFiles")) {
     path <- system.file("rawData", package="AffymetrixDataTestFiles")
     files <- findFiles(pattern="[.](chp|CHP)$", path=path, 
                        recursive=TRUE, firstOnly=FALSE)

     s1 = readChp(files[1])
     length(s1)
     names(s1)
     names(s1[[7]])
     }

