spkAccSD              package:spkTools              R Documentation

_A_c_c_u_r_a_c_y _S_t_a_n_d_a_r_d _D_e_v_i_a_t_i_o_n

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

     Estimates the standard deviation for spike-ins at the lowest
     possible fold change in each bin.

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

     spkAccSD(object, spkSlopeOut, tol=3)

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

  object: a SpikeInExpressionSet object

spkSlopeOut: the output from the spkSlope function

     tol: number of digits after decimal point

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

     returns the median absolute deviation (MAD) for each bin.

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

     Matthew N. McCall

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

     data(affy)
     affySlope <- spkSlope(affy)
     spkAccSD <- spkAccSD(affy, affySlope)

