正确访问1xn结构的字段的方法 [英] Proper way of accessing field of a 1xn stuct

问题描述

我一直在寻找访问结构的给定字段的正确方法，而手动搜索和在线搜索都无济于事.

I have looked for the proper way to access a given field of a struct and the manual and online searches didn't help.

形式上，让MyStruct为1xn struct变量.使用以下命令可以很容易地列出存储在字段中的所有元素:

Formally, let MyStruct be a 1xn struct variable. It's easy to list all the elements stored in a field with:

MyStruct.Thisfield   
ans =
    0.7010

ans =
    0.310

ans =
    0.444

等

现在，我发现能够访问此元素的唯一方法是使用临时变量，例如temp={MyStruct.Thisfield}然后是temp{1,2}等.我认为这很笨拙，但无法弄清楚该怎么办.

Now the only way I found to be able to access an element of this is to use a temporary variable, e.g. temp={MyStruct.Thisfield} and then temp{1,2} etc. I think it's clumsy but can't figure out what else to do.

此:

>> MyStruct{1,1}.Thisfield 

来自非单元格数组对象的单元格内容引用.

Cell contents reference from a non-cell array object.

和这个:

>> MyStruct.Thisfield{1,1} 

多个结构元素的字段引用，后跟 更多参考块是一个错误.

Field reference for multiple structure elements that is followed by more reference blocks is an error.

是我失败的尝试.

在我的 https://stackoverflow.com/a/22813577/2777181

推荐答案

如果您当前正在这样做:

If you currently do:

temp={MyStruct.Thisfield}
temp{1,2} 

您可以通过直接访问该结构的第二个元素来替换它(如@Jucestain所述):

You can replace this by directly accessing the second element of the struct (As also mentioned by @Jucestain):

MyStruct(2).Thisfield

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请注意，在一维调用中，您无需指定所有尺寸.因此，在您的原始代码中，您可以完成

---

Note that in one dimensional calls, you don't need to specify all dimensions. So in your original code you could have done

temp{2}

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