matlab-guide

问题 I am currently building up a functionality in a Matlab GUI whereby the user can change the plot displayed on the screen (via a pop-up menu.... this isn't the issue FYI!) and move a vertical line across the plot with the mouse (the x-data is returned from the position of this line). I have no issues creating this mouse-interactive line when the GUI is first generated, but cannot "re-generate" the user-interactive line once the user selects a different dataset from the pop-up menu. I establish

问题 I need help solving an indexing problem. The assigned problem states: Two matrices (x and y) give the coordinates to form matrix B from matrix A. Produce the matrix B which contains the values of A at the given coordinates in x and y. For instance: x = [1 1 1; 2 2 1] y = [1 2 1; 3 2 4] %This would read as (1,1),(1,2),(1,1),(2,3),(2,2),(1,4) % Given matrix: A = [6 7 8 9; 10 11 12 13]; %This would give us this answer for B (using the coordinate scheme above): B=[6 7 6; 12 11 9]; I'm guessing I

问题 Q- Create a "counter" from 0:limit-1 (for example if you choose 3 it will display 0,1,2). The length of counter is not determined in the program and it should be determined when it is being run and the inputs can differ from each other this is the solution on python but i want to compute it on matlab. how do i do that? for i in range(3): print(3-i) for s in range(3,-1,-1) print s so the answer is : 3 2 1 3 2 1 0 回答1: As Dan hinted you in the comments above, the colon operator of Matlab

问题 I have two GUI files, which are as follows: gui1.m function varargout = gui1(varargin) gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @gui1_OpeningFcn, ... 'gui_OutputFcn', @gui1_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

问题 I am trying to write a scroll bar that changes the x-range of many subplots at the same time. kids = get(gcf,'Children'); h=uicontrol('style','slider',... 'units','normalized','position',Newpos,... 'callback',{@slide_axes,kids},'min',0,'max',xmax-chunkDuration); Update_axes is defined in the same file: function slide_axes(h) set(h,'xlim',get(gcbo,'value')+[0 20000]); end However, I get the error: ??? Error using plot_scroll>slide_axes Too many input arguments. ??? Error while evaluating

问题 I have a static text in GUI and need to write something like: y1 = A[1] y2 = A[2] y3 = A[3] etc. (there is a certain limit, right now this is not important). Where y1, y2, y3 are strings , and A[1], A[2], A[3] are numbers in a matrix A . I'm just not sure how to enter a new line in that static text, meaning I'm not sure how to go from y1 to y2 . I know there are a lot of answers to this question on the Internet but I can't find one that suits my needs for some reason. How can I do that? Thank

问题 I am relatively new to GUI's in Matlab, and I have created a simple GUI using GUIDE. I want to connect to a database (already defined and working!) and populate a listbox with the values from the database so the user can choose which to use (in this case they are chemical compounds). I haven't been able to find a good tutorial or clues on how to populate the listbox in this way. So far, I have: function load_listbox(hObject,handles) conn = database('antoine_db','',''); setdbprefs(

问题 I've got a GUI in MATLAB which uses uitables for input. There are a fixed number columns, and each column has a very specific format which I have stored as a cell array, like so: columnformat = {'text', 'numeric', {@doSomething, inputArg1}, {'Option1' 'Option2'}}; The number of rows is theoretically unlimited; the user could provide as many they like. The back-end is capable of handling arbitrarily many row inputs. Right now, I'm building a large uitable initially, and just assuming the user

问题 I have a piece of code in which I use setappdata and then later on I call the data using getappdata which returns an empty matirx even though it is not empty. A segment of my simplified code is below: function edit1_Callback(hObject, eventdata, handles) C=str2double(get(hObject,'String')) setappdata(hObject,'H',C) % --- Executes during object creation, after setting all properties. function edit1_CreateFcn(hObject, eventdata, handles) if ispc && isequal(get(hObject,'BackgroundColor'), get(0,

问题 If one creates an inputdialog with inputdlg and a default answer, it looks like that: Which callback command do I need to make it look like that? The documentation is missing a lot here. It's a kind of "luxury service" for the customer ;) But I think it would be nice, if it's easy to implement. This question is actually solved, as I found out that there are convenient functions like uigetfile and uiputfile for my particular case. But the general case of my questions remains unsolved or at