分配simulink/matlab时为什么要删除ans? [英] Why is one ans removed when assigning simulink/matlab?

问题描述

为什么在分配y时将ans删除?我想返回两个描述.

Why is one ans removed when I assign y? I want to return the two descriptions.

x = rmi('get',gcs)

x = 

2x1 struct array with fields:

    doc
    id
    linked
    description
    keywords
    reqsys

>> x.description

ans =

FirstReq


ans =

SecondRec

>> y = x.description

y =

FirstReq

>> y

y =

FirstReq

推荐答案

您可能需要使用{}:

>> x.description

ans = FirstReq

ans = SecondRec

>> y = {x.description}

y =
{
  [1,1] = FirstReq
  [1,2] = SecondRec
}

然后您可以使用()(输出将是一个单元格数组)或{}(输出将是description字段的数据类型)来索引到y:

You can then index into y using either () (output will be a cell array) or {} (output will be whatever the data type of the description field is):

>> y(1)

ans =
{
  [1,1] = FirstReq
}

>> y{1}
ans = FirstReq

注意 :我使用的是Octave，而不是MATLAB，但仍应使用.

Note: I am using Octave, not MATLAB, but it should still apply.

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