在r命令功能：参数长度不同 [英] Order function in R: argument lengths differ

问题描述

我收到以下错误R：

argument lengths differ.

我有一组数据，我想订购的两列，先caseID，然后在包含时间戳列。我用下面的code：

I have a data set I would like to order on two columns, first on caseID, then on a column that contains a timestamp. I use the following code:

mydata <- mydata[order(mydata[ ,col1], mydata[ ,col2], decreasing = FALSE),]

COL1和col2都拿着一个整数两个变量。我已经看过类似的问题，并试图提出存在的解决方案，但是毫无效果。）

Col1 and col2 are two variables holding an integer. I have looked at similar questions and tried the solutions that were proposed there, but nothing worked ;).

有人能帮帮我吗？

亲切的问候

推荐答案

研究认为你2列有不同的长度，有时会出现这种情况，当你不小心访问不存在的列，检查 COL1 和 COL2 ，以确保它们是适当的数字。另外，也要看看长度（MYDATA [中，col1]）和长度（MYDATA [，COL2]）来看看那些2值相匹配。还检查缺少，或其他标点符号，有时如果你没有语法完全正确的，那么你得到长度为1的列表，或者不单个元素的矢量匹配长度其他载体。

R thinks that you 2 columns have different lengths, sometimes that happens when you accidentally access a column that does not exist, check the values of col1 and col2 to make sure that they are appropriate numbers. Also look at length(mydata[,col1]) and length(mydata[,col2]) to see if those 2 values match. Also check for missing , or other punctuation, sometimes if you don't have the syntax exactly right then you get a list of length 1, or a single element vector which does not match the other vector in length.

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