prod                  package:base                  R Documentation

_P_r_o_d_u_c_t _o_f _V_e_c_t_o_r _E_l_e_m_e_n_t_s

_D_e_s_c_r_i_p_t_i_o_n:

     'prod' returns the product of all the values present in its
     arguments.

_U_s_a_g_e:

     prod(..., na.rm = FALSE)

_A_r_g_u_m_e_n_t_s:

     ...: numeric vectors.

   na.rm: logical. Should missing values be removed?

_D_e_t_a_i_l_s:

     If 'na.rm' is 'FALSE' an 'NA' value in any of the arguments will
     cause a value of 'NA' to be returned, otherwise 'NA' values are
     ignored.

     This is a generic function: methods can be defined for it directly
     or via the 'Summary' group generic.

_R_e_f_e_r_e_n_c_e_s:

     Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) _The New S
     Language_. Wadsworth & Brooks/Cole.

_S_e_e _A_l_s_o:

     'sum', 'cumprod', 'cumsum'.

_E_x_a_m_p_l_e_s:

     print(prod(1:7)) == print(gamma(8))

