在gui中绘制bode，nyquist和nichols响应的错误matlab

Question

我想用GUIDE Matlab创建一个图形界面，显示传递函数的不同响应：step，impulse，bode，nyquist和nichols响应。 它适用于步骤和冲动响应，但nyquist，bode和nichols它不起作用，我应该向'plot'功能添加'squeeze'，但它不完全是正确的响应！ 这是错误，当我尝试与剧情只：

???使用错误==>图线的数据可能没有超过2个维度
这是个LTI .FIG文件
下面的代码是.m文件的内容

function varargout = LTI(varargin) 
% LTI M-file for LTI.fig 
%  LTI, by itself, creates a new LTI or raises the existing 
%  singleton*. 
% 
%  H = LTI returns the handle to a new LTI or the handle to 
%  the existing singleton*. 
% 
%  LTI('CALLBACK',hObject,eventData,handles,...) calls the local 
%  function named CALLBACK in LTI.M with the given input arguments. 
% 
%  LTI('Property','Value',...) creates a new LTI or raises the 
%  existing singleton*. Starting from the left, property value pairs are 
%  applied to the GUI before LTI_OpeningFcn gets called. An 
%  unrecognized property name or invalid value makes property application 
%  stop. All inputs are passed to LTI_OpeningFcn via varargin. 
% 
%  *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one 
%  instance to run (singleton)". 
% 
% See also: GUIDE, GUIDATA, GUIHANDLES 

% Edit the above text to modify the response to help LTI 

% Last Modified by GUIDE v2.5 24-Nov-2014 10:41:38 

% Begin initialization code - DO NOT EDIT 
gui_Singleton = 1; 
gui_State = struct('gui_Name',  mfilename, ... 
       'gui_Singleton', gui_Singleton, ... 
       'gui_OpeningFcn', @LTI_OpeningFcn, ... 
       'gui_OutputFcn', @LTI_OutputFcn, ... 
       'gui_LayoutFcn', [] , ... 
       'gui_Callback', []); 
if nargin && ischar(varargin{1}) 
    gui_State.gui_Callback = str2func(varargin{1}); 
end 

if nargout 
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); 
else 
    gui_mainfcn(gui_State, varargin{:}); 
end 
% End initialization code - DO NOT EDIT 


% --- Executes just before LTI is made visible. 
function LTI_OpeningFcn(hObject, eventdata, handles, varargin) 
% This function has no output args, see OutputFcn. 
% hObject handle to figure 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA) 
% varargin command line arguments to LTI (see VARARGIN) 

% Choose default command line output for LTI 
handles.output = hObject; 

% Update handles structure 
guidata(hObject, handles); 

% UIWAIT makes LTI wait for user response (see UIRESUME) 
% uiwait(handles.figure1); 


% --- Outputs from this function are returned to the command line. 
function varargout = LTI_OutputFcn(hObject, eventdata, handles) 
% varargout cell array for returning output args (see VARARGOUT); 
% hObject handle to figure 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA) 

% Get default command line output from handles structure 
varargout{1} = handles.output; 



function numerateur_Callback(hObject, eventdata, handles) 
% hObject handle to numerateur (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA) 

% Hints: get(hObject,'String') returns contents of numerateur as text 
%  str2double(get(hObject,'String')) returns contents of numerateur as a double 


% --- Executes during object creation, after setting all properties. 
function numerateur_CreateFcn(hObject, eventdata, handles) 
% hObject handle to numerateur (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles empty - handles not created until after all CreateFcns called 

% Hint: edit controls usually have a white background on Windows. 
%  See ISPC and COMPUTER. 
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) 
    set(hObject,'BackgroundColor','white'); 
end 



function denumerateur_Callback(hObject, eventdata, handles) 
% hObject handle to denumerateur (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA) 

% Hints: get(hObject,'String') returns contents of denumerateur as text 
%  str2double(get(hObject,'String')) returns contents of denumerateur as a double 


% --- Executes during object creation, after setting all properties. 
function denumerateur_CreateFcn(hObject, eventdata, handles) 
% hObject handle to denumerateur (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles empty - handles not created until after all CreateFcns called 

% Hint: edit controls usually have a white background on Windows. 
%  See ISPC and COMPUTER. 
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) 
    set(hObject,'BackgroundColor','white'); 
end 


% --- Executes on button press in rep_indic. 
function rep_indic_Callback(hObject, eventdata, handles) 
% hObject handle to rep_indic (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA) 
num= str2num(get(handles.numerateur,'String')); 
denum = str2num(get(handles.denumerateur,'String')); 
G=tf([num],[denum]); 
axes(handles.figure) 
plot(step(G)) 
grid on 


% --- Executes on button press in lieu_bode. 
function lieu_bode_Callback(hObject, eventdata, handles) 
% hObject handle to lieu_bode (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA) 
num= str2num(get(handles.numerateur,'String')); 
denum = str2num(get(handles.denumerateur,'String')); 
G=tf([num],[denum]); 
axes(handles.figure) 
plot(squeeze(bode(G))) 
grid on 

% --- Executes on button press in rep_impuls. 
function rep_impuls_Callback(hObject, eventdata, handles) 
% hObject handle to rep_impuls (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA) 
num= str2num(get(handles.numerateur,'String')); 
denum = str2num(get(handles.denumerateur,'String')); 
G=tf([num],[denum]); 
axes(handles.figure) 
plot(impulse(G)) 
grid on 

% --- Executes on button press in lieu_nyquist. 
function lieu_nyquist_Callback(hObject, eventdata, handles) 
% hObject handle to lieu_nyquist (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA) 
num= str2num(get(handles.numerateur,'String')); 
denum = str2num(get(handles.denumerateur,'String')); 
G=tf([num],[denum]); 
axes(handles.figure) 
plot(s(nyquist(G))) 
grid on 

% --- Executes on button press in lieu_nichols. 
function lieu_nichols_Callback(hObject, eventdata, handles) 
% hObject handle to lieu_nichols (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA) 
num= str2num(get(handles.numerateur,'String')); 
denum = str2num(get(handles.denumerateur,'String')); 
G=tf([num],[denum]); 
axes(handles.figure) 
plot(squeeze(nichols(G))) 
grid on 

Answer 1

你不提供* .fig文件去与您的代码，但我怀疑我知道什么问题是：bode,nyquist和nichols自动产生的情节，你不需要调用plot函数。检查文档以获取调用这些函数的正确方法。在你的GUI，替换：

1. plot(squeeze(bode(G)))通过bode(G)
2. plot(s(nyquist(G))) [原文]由nyquist(G)
3. plot(squeeze(nichols(G)))通过nichols(G)

编辑基于评论

我想你需要做的是

num= str2num(get(handles.numerateur,'String')); 
denum = str2num(get(handles.denumerateur,'String')); 
G=tf([num],[denum]); 
axes(handles.figure) 
step(G) 
grid on 

并且这同样适用于bode，nyquist，nichols和impulse，即只在图中创建一组轴和情节将显示在默认情况下的那些轴。