peakCDFextraction        package:TargetSearch        R Documentation

_N_e_t_C_D_F _t_o _R

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

     This function reads a netcdf chromatogram file and returns a list
     containing the retention time and the intensity matrices.

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

     peakCDFextraction(cdfFile, massRange = c(85, 500))

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

 cdfFile: A character string naming a netcdf file. 

massRange: A two component numeric vector with the scan mass range to
          extract. 

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

     The function expects the following NetCDF variables:
     'intensity_values', 'mass_values', 'scan_index', 'point_count' and
     'scan_acquisition_time'. Otherwise, an error will be displayed.

     The 'massRange' parameter is a numeric vector with two components:
     lower and higher masses. All masses in that range will be
     extracted. Note that it is not possible to extract a discontinuous
     mass range.

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

     A two component list. 

    Time: The retention time vector.

   Peaks: The intensity matrix. Rows are the retention times and
          columns are masses. The first column is the lower mass value
          and the last one is the higher mass. 

_N_o_t_e:

     This function does not look for peaks, just extracts all the raw
     intensity values of the chromatogram file. Use 'NetCDFPeakFinding'
     instead.

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

     Alvaro Cuadros-Inostroza, Matthew Hannah, Henning Redestig

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

     'NetCDFPeakFinding'

