Web前言. 在上一节中,我们主要介绍了 purrr 包提供的工具函数来减少 for 循环的使用,使代码更加的简洁,便于阅读。. 但是,使用 R 原生的 apply 函数家族也能够极大减少 for 循环的使用。. 下面我们主要介绍 apply 函数的使用。. apply 针对不同的数据类型,会有不同 ...
r Error dim(X) must have a positive length? - Stack Overflow
WebOct 21, 2024 · F is a function and Vectorize(F) is the vectorized version of F, which is also a function.The errors you're getting are due to running quantile on a function, rather than on a vector of numeric values. For example, substitute mean for F in the calls to quantile and you'll get the same errors. (Also, you probably wanted probs = c(0.25, 0.5, 0.75) or … WebJan 24, 2024 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers. cynthiana grape vines for sale
r - dim(X)的R长度必须为正 - 堆栈内存溢出 - STACKOOM
WebJul 25, 2024 · 提示:本站为国内最大的StackOverflow镜像站,可中英对照查看,鼠标放在中文字句上可显示英文原文。 WebMar 27, 2024 · In each of those cases, the naiveBayes object passed to predict has an apriori element with a dim of 2. Your object has a dim of 1. That might be where your problem is (which means its an issue of how you've constructed classifier. WebThank you for your help, David. I was trying to run bootrapping on the dataset "shoes" from MASS package. But I still have some problem here. > as.matrix(data.frame(shoes),nrows=10,ncols=2,byrow=T) A B [1,] 13.2 14.0 [2,] 8.2 8.8 [3,] 10.9 11.2 [4,] 14.3 14.2 [5,] 10.7 11.8 [6,] 6.6 6.4 [7,] 9.5 9.8 [8,] 10.8 11.3 [9,] 8.8 9.3 … cynthiana grapes for sale