hyper                  package:qtl                  R Documentation

_D_a_t_a _o_n _h_y_p_e_r_t_e_n_s_i_o_n

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

     Data from an experiment on hypertension in the mouse.

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

     data(hyper)

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

     An object of class 'cross'.  See 'read.cross' for details.

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

     There are 250 backcross individuals typed at 174 markers (actually
     one contains only missing values), including 4 on the X
     chromosome, with one phenotype. 

     The phenotype is the blood pressure.  See the reference below. 
     Note that, for most markers, genotypes are available on only the
     individuals with extreme phenotypes.  At many markers, only
     recombinant individuals were typed.

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

     Bev Paigen and Gary Churchill (The Jackson Laboratory, Bar Harbor,
     Maine) <URL:
     http://www.jax.org/research/churchill/datasets/qtl/qtlarchive>

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

     Sugiyama, F., Churchill, G. A., Higgens, D. C., Johns, C.,
     Makaritsis, K. P., Gavras, H. and Paigen, B. (2001) Concordance of
     murine quantitative trait loci for salt-induced hypertension with
     rat and human loci. _Genomics_ *71*, 70-77.

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

     'fake.bc', 'fake.f2', 'fake.4way', 'listeria', 'bristle3',
     'bristleX'

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

     data(hyper)
     summary(hyper)
     plot(hyper)

     # Note the selective genotyping
     plot.missing(hyper, reorder=TRUE)

     # A marker on c14 has no data; remove it
     hyper <- drop.nullmarkers(hyper)

