如何捕获“当前”的输出?函数并将其存储在字符串中
在 Matlab 中,我有一个 IDPOLY 对象,我希望“呈现”并将结果文本存储在文本文件中。
例如,如果 a
是 IDPOLY 对象,并且我执行
>> present(a)
我得到
Discrete-time IDPOLY model: A(q)y(t) = B(q)u(t) + e(t)
A(q) = 1 - 1.31 q^-1 + 0.2425 q^-2 - 0.431 q^-3 + 0.4987 q^-4
B1(q) = 0.01357 + 0.04006 q^-1 - 0.04489 q^-2 + 0.007757 q^-3
- 0.1761 q^-4 + 0.06396 q^-5 - 0.2874 q^-6 + 0.3835 q^-7
B2(q) = -0.006397
Estimated using ARX with focus on data set iddata_est_shift
Loss function 0.0617185 and FPE 0.061879
Sampling interval: 0.025
Created: 24-Nov-2010 13:05:10
Last modified: 24-Nov-2010 13:06:56
有谁知道如何捕获此文本,因为我想将其写入日志文件中的文本文件。 present
没有返回参数。
In Matlab, I have a IDPOLY object which I wish to "present" and store the resulting text in a text file.
eg if a
is an IDPOLY object and I do
>> present(a)
I get
Discrete-time IDPOLY model: A(q)y(t) = B(q)u(t) + e(t)
A(q) = 1 - 1.31 q^-1 + 0.2425 q^-2 - 0.431 q^-3 + 0.4987 q^-4
B1(q) = 0.01357 + 0.04006 q^-1 - 0.04489 q^-2 + 0.007757 q^-3
- 0.1761 q^-4 + 0.06396 q^-5 - 0.2874 q^-6 + 0.3835 q^-7
B2(q) = -0.006397
Estimated using ARX with focus on data set iddata_est_shift
Loss function 0.0617185 and FPE 0.061879
Sampling interval: 0.025
Created: 24-Nov-2010 13:05:10
Last modified: 24-Nov-2010 13:06:56
Does anyone know how to capture this text as I'd like to write it to a text file in a log file. There are no returned arguments from present
.
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您可以尝试使用
diary
命令。You can try using the
diary
command.我发现 evalc() 命令完全可以满足我的需要。
并将表达式作为字符串传递。
I've found the evalc() command which does exactly what I need.
and pass the expression as a string.