USArmyRoofs               package:cobs               R Documentation

_R_o_o_f _Q_u_a_l_i_t_y _i_n _U_S _A_r_m_y _B_a_s_e_s

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

     The 'USArmyRoofs' data frame has 153 observations of roof sections
     of US Army bases and 2 columns, 'age' and 'fci'.  This is Example
     2 of He & Ng (1999).

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

     data(USArmyRoofs)

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

     This data frame contains the following columns:

     _a_g_e numeric vector giving the roof's age in years.

     _f_c_i numeric, giving the FCI, the flash condition index, i.e., the
          percentage of flashing which is in good condition.

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

     From shar file available from <URL:
     http://www.cba.nau.edu/pin-ng/cobs.html>

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

     He, X. and Ng, P. (1999) COBS: Qualitatively Constrained Smoothing
     via Linear Programming; _Computational Statistics_ *14*, 315-337.

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

     data(USArmyRoofs)
     plot(fci ~ age, data = USArmyRoofs, main = "US Army Roofs data")

