Matlab-在表格标题中使用特殊字符 [英] Matlab - Using special characters in table header

问题描述

我已经用一个结构中的数据构造了一个表，现在希望在导出表之前将自定义标头添加到列中.我发现以下命令:

I have constructed a table with data from a struct and now wish to add custom headers to the columns before exporting the table. I found the following command:

T.Properties.VariableNames{'OldHeader'} = 'NewHeader';

但是，此命令不允许我在标题中使用空格或特殊字符.我的表包含来自处理后的实验室数据的输出，我希望具有诸如"Vol.[mL]"和"Conc.[wt％]"之类的标题.

This command however does not allow me to use spaces or special characters for my headers. My table contains the output from processed lab data and I wish to have headers like "Vol. [mL]" and "Conc. [wt%]".

使用 matlab文档中的示例进行说明:

To illustrate using the example from matlab documentation:

S.Name = {'CLARK';'BROWN';'MARTIN'};
S.Gender = {'M';'F';'M'};
S.SystolicBP = [124;122;130];
S.DiastolicBP = [93;80;92];
T = struct2table(S)
T.Properties.VariableNames{'Gender'} = 'Sex';

以上方法有效，但我只能使用普通字符且不能使用空格.我的问题是如何将性别"更改为体积[mL]"-甚至可能吗?

The above works, but restricts me to normal characters and no spaces. My question is how to change "Gender" to "Vol. [mL]" - if even possible?

推荐答案

正如@Jubobs在注释中已经提到的那样，存在一些用于命名变量的规则，这些规则会阻止您选择所需的确切名称.从文档中，我通过对该主题进行了搜索:

As @Jubobs already mentioned in the comment, there are some rules for naming variables that prevent you from choosing the exact name that you want. From the documentation that I found by googling the topic:

有效的变量名以字母开头，后跟字母，数字或下划线.MATLAB®区分大小写，因此A和a不区分大小写相同的变量.变量名称的最大长度是值namelengthmax命令返回.

A valid variable name starts with a letter, followed by letters, digits, or underscores. MATLAB® is case sensitive, so A and a are not the same variable. The maximum length of a variable name is the value that the namelengthmax command returns.

您不能使用与MATLAB关键字相同的名称定义变量，例如是否或结束.有关完整列表，请运行iskeyword命令.

You cannot define variables with the same names as MATLAB keywords, such as if or end. For a complete list, run the iskeyword command.

但是，我可以想到两种简单的方法来解决此问题:

However, I could think of two easy ways to work around this:

1. 不同的名称，例如，您可以使用变量名称 Vol_ml
2. 将名称存储在列表中，第一个变量名称可能带有诸如 v1 之类的索引代码，然后可以将 v1 用作第一个变量的名称./li>

1. Different names, for example you can use the variable name Vol_ml
2. Store the names in a list, perhaps with an index code like v1 for the first variable name, then you can make v1 the name of the first variable.

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