Beantwortet
ode45 error rungg- kutta
your error is probably not with the ODE line, but actually running "Simulation", which you are not supplying any arguments to at...

mehr als 5 Jahre vor | 0

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Solving second order PDE
Does this help: https://www.mathworks.com/help/matlab/ref/pdepe.html I believe that pdepe is available with base matlab. It ap...

mehr als 5 Jahre vor | 0

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Saving multiple outputs from ODE45 with different dimensions?
I would use cells...also what's with the dual indexing? options can be defined outside since nothing is changing from iteration ...

mehr als 5 Jahre vor | 0

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Increment a class property everytime calling a class method
subclass from the handle class (default is value class), and you can update properties of the instance without explicitly overwr...

mehr als 5 Jahre vor | 1

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How to plot values with different color with "if statement"
look at the documentation for the "scatter()" command. can you do what you want with that?

mehr als 5 Jahre vor | 0

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App inside app question
If not more than 1 image needs to be displayed at once, maybe just save all the image data internally, have only one axes, and h...

mehr als 5 Jahre vor | 1

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Selection of data in timetable
Hmm, so the question is about periodic time ranges...there might be a better way, but maybe you can use "isbetween" on an auxili...

mehr als 5 Jahre vor | 0

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How can i select cell from table in app designer?
The UITable has a callback for selection https://www.mathworks.com/help/matlab/ref/matlab.ui.control.tableappd-properties.html#...

mehr als 5 Jahre vor | 0

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Reading data from ASCII file
It would have been helpful to know these things in advance (you hinted at the first, but say it explicitly) Data contains multi...

fast 6 Jahre vor | 0

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Surface Fit over image
Here's my first pass thoughts: First steps: Obtain X and Y coordinates of your pixels ensure your pixel values are of type do...

fast 6 Jahre vor | 1

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Frage

How to identify ui component classes that other ui components can be children of
I am trying to identify ui components like uipanels, uigridlayouts, uitabs, etc., that may contain other ui components as childr...

fast 6 Jahre vor | 1 Antwort | 0

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Antwort

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Plotting points in 3D with mesh
For just visualizing the chosen data in a surface, does this look like what you want? clc; close all; clear; N = 500; X...

fast 6 Jahre vor | 0

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Beantwortet
How can I solve a partial derivative equation if it does not contain a time derivative in MATLAB?
If you mean by "no time variable" that your equation is elliptic in more than 1 independent variable, then unfortunately you'll ...

fast 6 Jahre vor | 0

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Beantwortet
[App Designer] Get the object indentifier that triggered the callback
I think a cleaner way is to pass an identifier with the callback definition: ASpinner.ValueChangedFcn = @(evnt)app.VChanged(evn...

fast 6 Jahre vor | 0

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Plotting a graphic output of an external function in APPDESIGNER, more specifically the uiaxes
If there is no way to activate a uiaxes programmatically, you can try to create a regular axes in app designer in the startupfcn...

fast 6 Jahre vor | 0

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Roots of a two variables equation involving a numerical integration
Assuming x and y are scalars and there is a solution, use fsolve, not an optimization algorithm. You'll need initial guesses. Th...

fast 6 Jahre vor | 1

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Accessing an element of an array using an array as its index.
Interesting...I guess your question title should be edited to "use array as subscripts into multidimensional array". I dug into ...

fast 6 Jahre vor | 0

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Beantwortet
Struct to numeric variable
At the risk of having misunderstood: new_var = [structname.fieldname] This would work if you structname is a structure array 4...

fast 6 Jahre vor | 0

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How can I specify the way components resize automatically in App Designer?
"uigridlayout" was introduced in 2018b, which may be helpful...It allows pretty sophisticated layouts, although it still seems b...

fast 6 Jahre vor | 2

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How to add the value of the 3 highest elements automatically from a vector?
like this? [~,idx] = maxk(y,3) y(idx) = y(idx) + sx Are x1 and x2 irrelevant to your question?

fast 6 Jahre vor | 0

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How to map a vector to a colourmap ?
A brute force way would be to interpolate...not sure if there's a better way x = % ... data vector indices = 0:255; xref = ...

fast 6 Jahre vor | 1

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Beantwortet
Making a square figure with pcolor
Your coordinate grid matrices x and y are not "aligned" with the axes. You can see this if you just do plot3(x,y,zeros(size(x)...

fast 6 Jahre vor | 0

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Getting Cell location of checkboxes on selection (UITable)
Is it as simple as defining a CellEditCallback?

fast 6 Jahre vor | 0

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Beantwortet
Is there an automatic way to find the centre of this circularly-symmetric pattern?
This would be not at all efficient and maybe not robust, but you could pose a minimization problem: Find the coordinates (Xc,Yc...

fast 6 Jahre vor | 0

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How can I create binEdges?
It looks like your problem is not with binning, but the fact that you have NaN's in your data. By the way if you have 2014b or ...

fast 6 Jahre vor | 0

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Beantwortet
Extracting particular x and y data points from a figure
Thinking in terms of graphs is useful but only takes you so far. The point is how to think about the data and/or functions under...

fast 6 Jahre vor | 0

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Beantwortet
Help in implementing ode45 in app designer
Static methods don't assume that the app is passed as the first argument, so remove "app" from the arg list methods (Static) ...

fast 6 Jahre vor | 0

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Validate and get exact number of characters using the regular expression
Try out_str = regexp(str, '[A-Z]+-[0-9]{2}$', 'match');

fast 6 Jahre vor | 1

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Beantwortet
How to initialize a new matrix of the same type as an existing variable?
I am not sure if this works for symbolic type, but you can initialize an array of arbitrary type by specifying the "last" elemen...

fast 6 Jahre vor | 0

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How to remove outliers based on datetime
What if you ran statistics on real or integer representations of datetime, using datenum() or something?

fast 6 Jahre vor | 0