pro zhang READCOL,'E:test.dat',F='F,F,F,F',x, y, C, D FITEXY, x, y, A, B, X_SIG= C, Y_SIG= D, sigma_A_B, chi_sq, q print,'Intercept=',A print,'Slope=',B print,'Intercept standard deviation=',sigma_A_B[0] print,'Slope standard deviation=',sigma_A_B[1] print,'Chi_sq=',chi_sq print,'q - chi-sq probability=',q end