ΔR/R_0 =exp[(λ_1+2λ_2 (Prec) ̅ )ΔPrec+(λ_3+2λ_4 (Temp) ̅ )ΔTemp+λ_5 (ΔPrec*ΔTemp+Temp0*ΔPrec+Prec0*ΔTemp)]-1
There is no observed value of ΔR/R_0, but the specific value of each sample can be calculated according to the equation, λ_1, λ_2, λ_3, λ_4, λ_5 are known values, and there are corresponding observed values of Prec, ΔPrec, Temp, ΔTemp, Prec0, Temp0.
How stata calculates point estimates and standard errors for ΔR/R_0.
There is no observed value of ΔR/R_0, but the specific value of each sample can be calculated according to the equation, λ_1, λ_2, λ_3, λ_4, λ_5 are known values, and there are corresponding observed values of Prec, ΔPrec, Temp, ΔTemp, Prec0, Temp0.
How stata calculates point estimates and standard errors for ΔR/R_0.