apply如果你看一下( )的开头src/library/base/R/apply.R#29,它所做的第一件事就是将输入转换为 amatrix: ## Ensure that X is an array object dl <- length(dim(X)) if(!dl) stop("dim(X) must have a positive length") if(is.object(X)) X <- if(dl == 2L) as.matrix(X) else as...
apply...dim(X)中的错误必须为正长度EN1、R中的向量化运算-seq seq(1, 10, by=1) seq(1, 1...
问循环调用apply抛出错误的函数EN在程序运行的过程中，如果发生了错误，可以事先约定返回一个错误代码，...
function(X,MARGIN,FUN,...){FUN<-match.fun(FUN)#找到匹配的函数dl<-length(dim(X))#取到X中是几维 dl=2if(!dl)stop("dim(X) must have a positive length")if(is.object(X))#盘判断是否class属性X<-as.matrix(X)elseas.array(X)#否则转发转化为数组d<-dim(X)#d是一个向量,里面存放着X的...
**Contrastive Learning**: With most machine learning, you take input $X$ and expect output $Y$, and then train a model such that $X$ fed through the model produces something close to $Y$. For embedding models, we don't have $Y$: we don't know what a good embedding would be ...
问逐行迭代，如apply with purrrEN# -*-coding:utf-8-*-import os# 写之前，先检验文件是否存在，...
问C5.0包:粘贴时出错(apply(x，1，paste，折叠= "，")，折叠= "\n")：结果将超过2^31-1字节...