如幫助(predict.nls)中所述,當se.fit = TRUE時,應計算預測的標準誤差。但是,我的代碼在下面沒有顯示,但只是預測。Predict無法顯示預測的標準誤差,其中se.fit = TRUE
alloy <- data.frame(x=c(10,30,51,101,203,405,608,810,1013,2026,4052,6078,
8104,10130),
y=c(0.3561333,0.3453,0.3355,0.327453,0.3065299,0.2839316,
0.2675214,0.2552821,0.2455726,0.2264957,0.2049573,
0.1886496,0.1755897,0.1651624))
model <- nls(y ~ a * x^(-b), data=alloy, start=list(a=.5, b=.1))
predict(model, se=TRUE)
我的代碼有什麼問題?謝謝!
然後'幫助(predict.nls)'接着說,「目前這個參數將被忽略。」 。 – BenBarnes