回到Matlab R2016b中的旧显示格式

本文介绍了回到Matlab R2016b中的旧显示格式的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

在Matlab R2016b中，显示某些数据类型的变量会显示有关该类型的信息。当通过键入而没有最终分号来显示变量时会发生这种情况（使用 disp 函数时不会发生这种情况）。

In Matlab R2016b, displaying variables of certain data types shows information about the type. This happens when the variable is displayed by typing it without a final semicolon (it doesn't happen when using the disp function).

比较例如：

Matlab R2015b（旧格式：仅显示数据）：

Matlab R2015b (old format: displays just the data):

>> x = [10 20 30]
x =
    10    20    30
>> x = {10 20 30}
x = 
    [10]    [20]    [30]
>> x = [false false true]
x =
     0     0     1

Matlab R2016b（新格式：包括类型）：

Matlab R2016b (new format: includes type):

>> x = [10 20 30]
x =
    10    20    30
>> x = {10 20 30}
x =
  1×3 cell array
    [10]    [20]    [30]
>> x = [false false true]
x =
  1×3 logical array
   0   0   1

如你所见，R2016b中有一条额外的线告诉类型。显然，对于任何不是 double 或 char 的类型都会发生这种情况。

As you see, there's an extra line in R2016b telling the type. Apparently this happens for any type that is not double or char.

R2016b中是否有某些设置可以回到原来的行为？

Is there some setting in R2016b to go back to the old behaviour?

推荐答案

不幸的是似乎没有倾向于改变这种行为。（一如既往）有一些hacky解决方法。

Unfortunately there doesn't seem to be a preference for changing that behavior. There is (as always) a bit of a hacky workaround.

当你从一行中省略一个分号时，它不是 disp 被调用，而是。 R2016b显然修改了 cell 数据类型的 display 方法，以显示一些类型信息以及值本身。

When you omit a semi-colon from a line, it's not disp that is called but rather display. R2016b has apparently modified the display method for a cell datatype to display some type information along with the values themselves.

值得庆幸的是，我们可以使用看起来更像显示的东西来重载 display 方法以前的版本。

Thankfully we can overload that display method with something that looks a little bit more like the display of previous releases.

我们可以创建一个 @cell 文件夹（我们的任何地方）路径）并在里面放置一个名为 display.m 的文件。

We can create a @cell folder (anywhere on our path) and place a file called display.m inside.

@ cell / display.m

function display(obj)
    % Overloaded display function for grumpy old men

    if strcmpi(get(0, 'FormatSpacing'), 'loose')
        fprintf('\n%s =\n\n', inputname(1))
    else
        fprintf('%s =\n', inputname(1))
    end
    disp(obj);
end

现在，每当显示一个单元格阵列时，由于缺少尾部分号，它不包含任何类型信息。

Now, whenever a cell array is displayed due lack of a trailing semi-colon, it will not include any type information.

>> c = {'a', 'b'}

c =

    'a'    'b'

不幸的是，还有其他数据类型（例如 logical ）也会显示类型信息，因此您必须超载每个类的显示方法。

Unfortunately, there are other datatypes (such as logical) that also display the type information so you'd have to overload the display method for each of these classes.

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