在R中
nls.sol<-nls(SKIN~a*DBH^b*H^c,data=rd,start=list(a=0.01,b=2,c=0.1))
summary(nls.sol)
得到结果：
Formula: SKIN ~ a * DBH^b * H^c
Parameters:
Estimate Std. Error t value Pr(>|t|)
a 0.01019 0.00345 2.953 0.00468 **
b 1.29619 0.13664 9.486 5.14e-13 ***
c 1.08877 0.18952 5.745 4.60e-07 ***
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 1.063 on 53 degrees of freedom
Number of iterations to convergence: 6
Achieved convergence tolerance: 1.535e-06

请问由结果如何计算附件中的公式值