renorm                package:PROcess                R Documentation

_R_e_n_o_r_m_a_l_i_z_e _S_p_e_c_t_r_a

_D_e_s_c_r_i_p_t_i_o_n:

     Renormalize spectra for m/z values greater than `cutoff'.

_U_s_a_g_e:

     renorm(Ma, cutoff)

_A_r_g_u_m_e_n_t_s:

      Ma: a matrix, with rows the m/z values and the columns the
          samples.

  cutoff: a real value, before which the portion of a spectrum will be
          ignored.

_D_e_t_a_i_l_s:

     A sample of spectra will be normalized to have the same AUC, the
     median of the AUCs of spectra. Each AUC is calculated as the sum
     of the intensities whose m/z values are greater than `cutoff'.

_V_a_l_u_e:

     A matrix, with rows the m/z values and the columns the samples.
     Only rows with m/z values greater than `cutoff' are kept.

_E_x_a_m_p_l_e_s:

     example(rmBaseline)
     rtM <- renorm(testM, cutoff=1500)

