lmfit
plotDiagnostics(mdl,'cookd') The dashed line in the figure corresponds to the recommended threshold value,3*mean(mdl.Diagnostics.CooksDistance). The plot has some observations with Cook's distance values greater than the threshold value, which for this example is 3*(0.0108) = 0.0324. In parti...
Re: Cook's Distance Plot: Label and Lines are not aligned Posted 07-09-2016 07:10 PM (3039 views) | In reply to sauer Try adding: format serialno 4.; as the first line of the procedure. I assume that the ID variable is numeric and has a format with a large widt...
方法二:Cook距离 另一个定量分析影响大小的量叫做Cook距离(Cook’s Distance)。Cook距离直接总结了去除某一个数据点之后,其他样本拟合值的变化,相当于综合了残差和杠杆值的信息,很受欢迎。一个数据点的Cook距离越大,它对于整个回归模型的影响就越大,常用的判断...
parameter:fit表示你的dataset which表示plot的类型，数值1-6，4表示的就是画cook's distance 的那幅图 cook.levels表示levels of Cook's distance at which to draw contours（等高线）INCAR
Cook's distance (D_i) is an influence measure based on the difference between the regression parameter estimates b and what they become if the i-th data point is removed, b_-1. The usual criterion is that a point is influential if D_i exceeds the median of the F_p,n-p distribution...
The objective of this article is to propose a new robust ratio estimator, named the TC-ratio estimator (ratio estimator with trimming based on Cook’s distance), which is robust against outliers on the vertical axis (variable \(y\)), on the horizontal axis (variable \(x\)), and on ...
This summer I wrote about Ruzsa distance and Ruzsa entropy. That earlier post would make a good warmup for reading Terence Tao’s latest post On a conjecture of Martin. Posted in Uncategorized Tagged Group theory Enriched categories Posted on 5 October 2023 by John We begin with a couple...
the range to perform their regular day's work. As the boys disappear in the distance, Patsy is taken with terrific cramps. He has a horrible suspicion that he has been poisoned. His examination of the empty corn cans suggests ptomaine poison. The camp is deserted and the boys will not ...
Next, instead of connecting each point to its next iteration, let’s plot the starting circle, then the image of that circle, and the image of that circle, etc. The boundary of the disk, the blue circle, is mapped to the orange half-circle, which is then mapped to the green stretched...