isUnivariate           package:timeSeries           R Documentation

_C_h_e_c_k_s _i_f _a _T_i_m_e _S_e_r_i_e_s _i_s _U_n_i_v_a_r_i_a_t_e

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

     Checks if a time series o bject or any other rectangular object is
     univariate or multivariate.

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

     isUnivariate(x)
     isMultivariate(x)

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

       x: an object of class 'timeSeries' or any other rectangular 
          object. 

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

     A rectangular object 'x' is considered to be univariate if  the
     function 'NCOL(x)' returns one, and is considered to be
     multivariate if 'NCOL(x)' returns a value bigger than one.

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

     'isUnivariate'
      'isMultivariate'

      return a logical depending if the test is true or not.

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

     ## data -  
        # Microsoft Data:
        setRmetricsOptions(myFinCenter = "GMT")
        MSFT = as.timeSeries(data(msft.dat))
        Open = MSFT[, "Open"]
        
        isUnivariate(MSFT)
        isUnivariate(Open)
        
        isMultivariate(MSFT)
        isMultivariate(Open)

