musk                 package:kernlab                 R Documentation

_M_u_s_k _d_a_t_a _s_e_t

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

     This dataset describes a set of 92 molecules of which 47 are
     judged by human experts to be musks and the remaining 45 molecules
     are judged to be non-musks.

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

     data(musk)

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

     A data frame with 476 observations on the following 167 variables.

     Variables 1-162  are "distance features" along rays.  The
     distances are measured in hundredths of Angstroms.  The distances
     may be negative or positive, since they are actually measured
     relative to an origin placed along each ray.  The origin was
     defined by a "consensus musk" surface that is no longer used. 
     Hence, any experiments with the data should treat these feature
     values as lying on an arbitrary continuous scale.  In particular,
     the algorithm should not make any use of the zero point or the
     sign of each feature value. 

     Variable 163 is the distance of the oxygen atom in the molecule to
     a designated point in 3-space. This is also called OXY-DIS.

     Variable 164  is the X-displacement from the designated point.

     Variable 165 is the Y-displacement from the designated point.

     Variable 166 is the  Z-displacement from the designated point. 

     Class: 0 for non-musk, and 1 for musk

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

     UCI Machine Learning data repository 

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

     data(musk)

     muskm <- ksvm(Class~.,data=musk,kernel="rbfdot",C=1000)

     muskm

