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selecting only the numbers from a string variable
B = regexp(A,'\d*','Match'); returns one result for each number found in each string. You will then have to get the last ...

12 years 前 | 12

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Random numbergeneration with constraints
ulim=20; %max value llim=10; %min value rowlim=60; %max sum for each row m=5; %rows n=4; %columns RMat=ran...

12 years 前 | 0

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Is there a way to delete a whole row in a uitable by clicking a delete row button?
If you want to delete table data with a pushbutton, then I think you'll have to also have a cell selection callback so you know ...

13 years 前 | 0

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how to use a while loop to perform an infinite series approximation
Here's a shabby way of doing it... x=pi/2; %test: sin(pi/2)=1; error=1; n=1; count=0; while error >= 1*(10^-3); %x ...

13 years 前 | 0

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m_proj question: unexpected error
The clue's in the name- one is a 1x30 vector, the other's 1x180; you can make them the same size by setting the 3rd argument in ...

13 years 前 | 0

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Print Pushtool in gui doesn't work!
It could be the renderer. Try get(handles.figure1,'Renderer') for both types of plot and see if they're different. The r...

13 years 前 | 0

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Stacked Bar and Legend Handles
I'll have a stab at: h1=bar(x1, y1, 'r', 'stack'); hg1=hggroup; set(h1,'Parent',hg1) hold all; h2=bar(x2, y2, 'b', 's...

13 years 前 | 0

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Optimize the FOR loop
It seems what you're trying to is find the first instance of each value of x being less than each value of y. You can do this i...

13 years 前 | 1

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How can I save figures into structures?
hgsave(FigHandle,'Filename.mat') May be of interest

13 years 前 | 0

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converting vector to matrix
doc reshape in this case: V1=reshape(V,3,3)

13 years 前 | 0

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Adding up sizes of cell arrays
You've made sizeofCellArray a cell, but then treat it like a double: for j = 1:NumberOfClasses sizeOfCellArray(j,:) ...

13 years 前 | 0

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Record iterations of loop that has a constant numel
It's not entirely clear to me, but it looks like the variable num will have a length of 252. I think the best way would be to ...

13 years 前 | 1

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simple inequality check fails - why?
You have to split up the comparisons: e.g.: x > 0 & x < 1

13 years 前 | 0

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Select multiple files in browser for conversion.
uigetfile({'*.pgm;*.bmp'}, 'Select image for conversion to *.bmp','MultiSelect','On') which will give you a cell array of...

13 years 前 | 0

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Callback only works outside image on panel
You will need to set the image's Button Down Function, in the same way as for the panel.

13 years 前 | 1

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How to access and use specific data from a structure
You can avoid using a loop altogether: m=cellfun(@max,struct2cell(Graph));

13 years 前 | 1

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converting structure array to xls file
The struct2cell function is probably what you need, though you'll have to dig through a bit as it only goes to the first level o...

13 years 前 | 0

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viewing the execution of a program
Have you looked at the echo function?

13 years 前 | 0

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Question on function handles
Roughly speaking, f and h are handles to small functions- functions that have been made without having to actually write fu...

13 years 前 | 1

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Not sending variable to workspace
You would have to do this inside a function, but is there anything to stop you from creating the structure without generating th...

13 years 前 | 0

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"H must be the handle to a figure or figure descendent" when updating handles.
It appears to be because of this line: if length(handles.amplitudeList)>5 && max(abs(handles.amplitudeList(end-5:end-1)- ...

13 years 前 | 1

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Changing color of a string in listbox - MATLAB GUI
You can do it with html- see <http://undocumentedmatlab.com/blog/html-support-in-matlab-uicomponents/>

13 years 前 | 1

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Creating an empty table matlab GUI
A=cell(3,1) will create an empty table.

13 years 前 | 1

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Plotting with a handle stored in a variable
you don't need to use the apostrophes, or even really the plotloc variable, you can just write plot(handles.smallgraph,x,y)...

13 years 前 | 0

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Zooming in on a graph / partitioning a data set
You could use ginput two or three times: the first ones to adjust the x and y limits around the point selected, and the last one...

13 years 前 | 0

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已解决

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

13 years 前

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Subplots with equal "nice" y-axes -- is there a function?
Once you've finished creating all the subplots (and you have the handles), you can set all of them at once by using : set(A...

13 years 前 | 1

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??? In an assignment A(I) = B, the number of elements in B and I must be the same.
I'm not entirely sure what the variables are, but you may be meaning to do an element-by-element divide, not a matrix divide: in...

13 years 前 | 1

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separating a part of plot from an original fft plot
you can use the greater than/ less than symbols to do this: say your frequency data is stored as X, and your FFT data is stored...

13 years 前 | 0

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Modify colorbar in .fig file
Try: caxis([0.1 0.7])

13 years 前 | 1