Formula: dd ~ C * diam^b

Parameters:
  Estimate Std. Error t value Pr(>|t|)    
C  0.04059    0.00125   32.47 0.000947 ***
b -5.32776    0.21705  -24.55 0.001656 ** 
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Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 

Residual standard error: 0.1813 on 2 degrees of freedom

Number of iterations to convergence: 6 
Achieved convergence tolerance: 9.002e-07