multiplePeaks          package:MetaNetwork          R Documentation

_E_x_a_m_p_l_e _M_u_l_t_i_p_l_e _P_e_a_k_s _r_e_p_o_r_t

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

     Example of the Multiple Peaks report that relates metabolites
     represented  by multiple mass peaks (because of isotopic or
     differential charges) for 'peaks2' example data set using
     information from 'traits2'. This report can be produced  by
     functions 'findMultiplePeaks' or 'MetaNetwork'.


     > data(multiplePeaks)
     > multiplePeaks[1:5,]

       cluster  peak1       mz1       peak2  mz2   corrCoef  massDiff  massRatio  relationship
       1        LCavg.1539  378  LCavg.1538  377  0.9998261         1        1.0       isotope
       2        LCavg.1570  424  LCavg.1566  423  0.9989359         1        1.0       isotope
       3        LCavg.1610  436  LCavg.1596  873  0.9912291      -437        0.5   diffCharged
       4        LCavg.1611  437  LCavg.1610  436  0.9612162         1        1.0       isotope
       5        LCavg.1612  438  LCavg.1596  873  0.9513867      -435        0.5   diffCharged

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

     data(multiplePeaks)

_F_o_r_m_a_t:

     A data frame.

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

     Jingyuan Fu <j.fu@rug.nl>,  Morris Swertz <m.a.swertz@rug.nl>, 
     Ritsert Jansen <r.c.jansen@rug.nl>

_S_o_u_r_c_e:

     Keurentjes JJB, FU J, de vos CHR, Lommen A, Hall RD, Bino RJ, van
     der Plas LHW, Jansen RC, Vreugdenhil D and Koornneef M. The
     genetics of plant metabolism. Nature Genetics (2006) 7: 842-849.

_R_e_f_e_r_e_n_c_e_s:

     Fu J, Swertz MA, Keurentjes JJB, Jansen RC. MetaNetwork: a
     computational tool for the  genetic study of metabolism. Nature
     Protocols (2007). 

     <URL: http://gbic.biol.rug.nl/supplementary/2007/MetaNetwork>

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

     Use 'findMultiplePeaks' to generate 'multiplePeaks'.
      Use 'MetaNetwork' to produce this dataset as part a genetic 
     analysis protocol on metabolites.

