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generate random numbers in engineering notation with precision
By default, variables in Matlab are double. If you want to change the way they are displayed, please look at: doc format ...

13年以上前 | 0

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Short question: Functions with multiple outputs
None

13年以上前 | 1

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Best Fit Line Drawing
Without a toolbox: x = 1:10; y = x + randn(1,10); plot(x,y,'b*') P = polyfit(x,y,1); yfit = P(1)*x...

13年以上前 | 0

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realtime frame acquisition while recording video
If your frame is really rgb data, then the red channel will be: your_red = squeeze(frame(:,:,1)); In the future please tr...

13年以上前 | 1

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32bit Windows 8gb RAM with Ramdisk > Out of Memory in parfor
Would using 64bit solve this: Probably. In 32 bits your variables can't be larger than around 4GB. What other things can you ...

13年以上前 | 2

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How to get the volume of a 3D concave shape?
Not automagically. You could try the file exchange. In 3D you could use the _delaunay()_ function and sum up the volumes of all ...

13年以上前 | 1

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Processing 'fopen' and save() on files _1, _2, _3 etc. at once
<http://www.mathworks.se/help/matlab/import_export/process-a-sequence-of-files.html>

13年以上前 | 0

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Question regarding hist3 fucntion
You could remove the data that are close to [0 0] before getting your histogram If you want to remove values equal to [0 0]; ...

13年以上前 | 0

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Problem with how to select the best result from a loop calculation
the_best = bitmax; %largest possible value, Inf would work as well for ii = 1:1000 your_new_min = %however you get ...

13年以上前 | 0

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Eliminate nested FOR loop
The following snippet will give the average for each month, using the _nanmean_ function. The first column of _your_result_ is t...

13年以上前 | 0

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Dealing with Character arrays
You probably need a cell array, especially if all the strings are not guaranteed to be of the same size. col1 = char(resha...

13年以上前 | 0

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Not enough input arguments error when using exp
That's because you are not passing any arguments to the _exp()_ function. You probably meant: f = 5*exp(2*x - sin(x^2)); ...

13年以上前 | 4

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How do I find the number of occurrences of NaN and the corresponding subscripts in an array
Another option: logical_array = A(2:end,2:end) ~= A(2:end,2:end) num_NaN = sum(logical_array(:)); idx = find(logical_arr...

13年以上前 | 2

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error (rounding or user) in simple math op
It is due to numerical precision, and is expected behavior. <http://www.mathworks.com/matlabcentral/answers/57444-faq-why-is-...

13年以上前 | 1

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Creating a submatrix from a matrix
A = [1 3 7; 10 1 2; 11 5 9; 12 2 5] your_mat = A(all(A<=7,2),:); I looked at your question history. Please accept an ans...

13年以上前 | 1

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Possible to use string variable in plot title?
This is a bit convoluted, and probably pointless, but it will get a string from a variable name. Fz = rand(100,1); fun = @...

13年以上前 | 0

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How to make the contents available in a function for calculation in another function
First function: function [a] = b a = [1 2 3]; Second function: function [e,f] = d(foo); %You need to pass an a...

13年以上前 | 0

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The mean of a subset of data
mean(your_data(your_data>0));

13年以上前 | 0

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Short question: Matrix with two arguments
It can mean several things. * Output of a function: [x y] = somefunction(arg1, arg2) The function has two outputs, a...

13年以上前 | 0

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Axes' position after adjusting data aspect ratio
What happens is that the axes object is not actually the white square you see. If you go to the property editor and click on bot...

13年以上前 | 0

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Making legend entry with multiple markers side-by-side
* _Place the markers next to each other:_ If you are talking about changing a property to make it happen then the answer is n...

13年以上前 | 0

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formatting axes for a plot
If all you want to do is to add the annotation in your plot, you don't need to add the 'XTicks'. You could just add this sect...

13年以上前 | 0

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Formatting the plot command
xVals = 1e10:1e10:1e11; aH = axes; plot(aH,xVals,rand(10,1)); set(gca,'XTickLabel',sprintf('%2.0e|',xVals)); Pleas...

13年以上前 | 0

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Is there a way to lower the XTickLabels a little?
aH = axes; plot(rand(10,1)); xCoord = get(aH,'Xtick'); yCoord = get(aH,'YLim'); yCoord(2) = []; offset = 0.05; ...

13年以上前 | 0

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questions about "plotperform" and performance graph
MSE or mean squared error, gives you the difference between observation and simulation. The lower the better. In this case it me...

13年以上前 | 0

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force a scientific notation format
x = 0:0.1e4:0.1e5; y = randn(11,1); plot(x,y,'b-o') xVals = 0:0.1e4:0.1e5; set(gca,'xtick',xVals); set(gca,'XTick...

13年以上前 | 0

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How to read long double?
I think the long double type is dependent on the architecture. If you wanted a really robust routine, you could read bit by bit ...

13年以上前 | 1

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How to view a shape file in matlab
doc mapshow It can be as simple as: S = shaperead(filename); mapshow(S); As long as you have latitude and longitud...

13年以上前 | 2

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linking two axes with rotate3D
h(1) = figure(1); v(1) = plot3(rand(10,1),rand(10,1),rand(10,1)); h(2) = figure(3); v(2) = plot3(rand(10,1),rand(10,1),ra...

13年以上前 | 1

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Hello, I have different time series data in differend time spane. eg. One I have from year 2004 to 2011 and one I have year 2007 to 2011 . How to get a plot so that I can get both time series with my X- axis within the range from 2004 to 2011
Assuming you have your dates as a Matlab serial date number, and that you want to set the limits in the active figure: set(g...

13年以上前 | 0