bsplineS                 package:fda                 R Documentation

_B-_s_p_l_i_n_e _B_a_s_i_s _F_u_n_c_t_i_o_n _V_a_l_u_e_s

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

     Evaluates a set of B-spline basis functions, or a derivative of
     these functions, at a set of arguments.

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

     bsplineS(x, breaks, norder=4, nderiv=0)

_A_r_g_u_m_e_n_t_s:

       x: A vector of argument values at which the B-spline basis
          functions are to evaluated.

  breaks: A strictly increasing set of break values defining the
          B-spline basis. The argument values x should be within the
          interval spanned by the break values.

  norder: The order of the B-spline basis functions. The order less one
          is the degree of the piece-wise polynomials that make up any
          B-spline function. The default is order 4, meaning piece-wise
          cubic. 

  nderiv: The derivative to be evaluated. The derivative must not
          exceed the order. The default derivative is 0, meaning that
          the basis functions themselves are evaluated.

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

_V_a_l_u_e:

     A matrix of function values. The number of rows equals the number
     of arguments, and the number of columns equals the number of basis
     functions.

_N_o_t_e:

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

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

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

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

