matlab'outerjoin':如何为键指定'rownames'`

Matlab的文档 outerjoin 说“行标签”可以用于 Keys . 它不提供synatx。我的尝试没有成功:

>> A=table([1;2],'VariableNames',{'Av1'},'RowNames',{'hot','dog'})
A = 
           Av1
           ___
    hot    1  
    dog    2  

>> B=table([3;4],'VariableNames',{'Bv1'},'RowNames',{'hot','dog'})
B = 
           Bv1
           ___
    hot    3  
    dog    4  

>> outerjoin(A,B)
Error using table/outerjoin (line 114)
Cannot find a common table variable to use as a key variable. 

>> outerjoin(A,B,'Keys','RowNames')
Error using table/outerjoin (line 114)
Unrecognized variable name 'RowNames'. 

我想知道如何解释文档。任何帮助都将不胜感激。

后注

似乎文档丢失的不仅仅是如何 指定 RowNames 对于 钥匙 . 它也没有描述默认值 钥匙。从测试来看,它的默认键似乎是匹配的列 姓名:

A=array2table( [ 1 1 10; 1 2 20; 2 1 1; 2 2 20],...
   'VariableNames',{'k1','k2','d'} )
B=array2table( [ 1 1 100; 1 2 200; 2 1 1; 2 2 200],...
   'VariableNames',{'k1','k2','d'} )
outerjoin(A,B,'MergeKeys',true)

A = 
    k1    k2    d 
    __    __    __
    1     1     10
    1     2     20
    2     1      1
    2     2     20
B = 
    k1    k2     d 
    __    __    ___
    1     1     100
    1     2     200
    2     1       1
    2     2     200
ans = 
    k1    k2     d 
    __    __    ___
    1     1      10
    1     1     100
    1     2      20
    1     2     200
    2     1       1
    2     2      20
    2     2     200

A=array2table( [ 1 1 10; 1 2 20; 2 1 1; 2 2 20],...
   'VariableNames',{'k1','k2','d'} )
B=array2table( [ 1 1 100; 1 2 200; 2 1 1; 2 2 200],...
   'VariableNames',{'k1','k2','e'} )
outerjoin(A,B,'MergeKeys',true)

A = 
    k1    k2    d 
    __    __    __
    1     1     10
    1     2     20
    2     1      1
    2     2     20
B = 
    k1    k2     e 
    __    __    ___
    1     1     100
    1     2     200
    2     1       1
    2     2     200
ans = 
    k1    k2    d      e 
    __    __    __    ___
    1     1     10    100
    1     2     20    200
    2     1      1      1
    2     2     20    200