weixin_46574200的博客

向量 seq()函数的一般格式 #seq(from = 1,to = 10,by = ((to-from)/length.out - 1)),length.out=NULL) #from,to,by,length,out不能同时指定 seq(0,1,length.out = 11) # seq(0,1,by = 0.1,length.out = 11) 报错 from和to指定起始和结束数字...