How can I create a vector of numbered names

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Anas Zh 2021-11-26

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1596214-how-can-i-create-a-vector-of-numbered-names

编辑： Peter Perkins 2021-11-26

采纳的回答： Walter Roberson

How can I create a vector of number names

for example,

n=8;

v= ["λ1","λ2".... ,"λn"]

so i can get a vector v= ["λ1","λ2","λ3","λ4","λ5","λ6","λ7","λ8"]

as i want to use it in table .....'RowNames',v)

The n value wanted to be changed so the question again how to number the name based on n

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KSSV 2021-11-26

I don't think you can use special symbols in table.

Peter Perkins 2021-11-26

编辑：Peter Perkins 2021-11-26

在 MATLAB Online 中打开

You actually can:

>> v = ["λ1","λ2","λ3"]
v = 
  1×3 string array
    "λ1"    "λ2"    "λ3"
>> t = table([1;2;3],'RowNames',v)
t =
  3×1 table
          Var1
          ____
    λ1     1  
    λ2     2  
    λ3     3  
>> t('λ3',:)
ans =
  table
          Var1
          ____
    λ3     3  

Originally, variable names had to be valid MATLAB identifiers, but now even those can have arbitrary characters. With variable names and dot indexing, you can't write t.λ3, you need to write something like t.('λ3'). But with row names there's no dot indexing, you always have to put row names in quotes like t('RowName',:). So there's not really a reason to limit row names to valid identifiers.

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