Answered
Appropriate Weights in Exponential Fit
The choice of weighting is unrelated to the computing platform... If you want to use an inverse variance weighting strategy, to...

4 years ago | 0

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How to speed up the simulation time of a big system of ODEs?
don't use syms

4 years ago | 0

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Indexing arrays of binned data
From what I can gather, it hsould be possible to reorganize your experimental data into a Nx6 matrix called Data, where N is the...

4 years ago | 0

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regression line in quadratic form
[edited] Alternatively, just create a new variable to hold an already sorted "model" experience N = 200; % choose an arbitrary ...

4 years ago | 1

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Reading large excel file using "read" command takes ~5 minutes, is this expected performance?
Try manually creating the import options with spreadsheetimportoptions().

4 years ago | 1

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Answered
How to use datetime as a condition in foor loop?
i believe you can, you just have coded it as a comparison of a datetime to a string. A(i,1) == datetime(2019,1,dd)

4 years ago | 0

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How to fill the gaps in a patch plot through adaptive interpolation
If you reduce your current patches into single (x,y) coordinates, e.g., center of mass, then you can triangulate/find the vorono...

4 years ago | 0

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How to fill the gaps in a patch plot through adaptive interpolation
You could add in "corners" where your red curves intersect the y-axes as new (x,y) coordinates, then do a convexhull on them. Th...

4 years ago | 0

Answered
Preallocation with object structures
I don't think you are understanding "preallocation" correctly based on your last example...matlab is [probably] asking you to "r...

4 years ago | 1

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Answered
Creation of a mask on RGB image
Instead of multiplying pixels in the mask by a constant value, you can mulitply all pixels by an "image" of the saturation multi...

4 years ago | 1

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Answered
Reading data with multiple headers
other experts on the forum for text parsing may have better ways, but you can scan through line by line and apply regular expres...

4 years ago | 0

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How can I get points coordinate on an axes made in GUI?
It sounds like the click is being "intercepted" by the object that you drew on the axes (please don't use the word "figure", bec...

4 years ago | 0

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Matlabでのバーチャルな写真の撮影について
ax.DataAspectRatio = [1,1,1] also ax.Projection = "perspective" and various other "camera"-related properties like: cameravie...

4 years ago | 0

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Answered
How an I manipulate top and bottom x axes individually?
Actually, dpb's suggestion of 2 axes should work as long as you don't turn "box on", and you may need to sync their positions if...

4 years ago | 0

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Solved

Convert a temperature reading from Celsius to an unknown scale
Two of the most famous temperature scales are the Celsius and the Fahrenheit scale. In reality, however, there are so many other...

4 years ago

Solved

Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

4 years ago

Answered
Logical Indexing instead of loops in 3D-Matrices
What is the purpose of vectorization? Is it for imagined speed gains, or just an "in principle" question? Bruno's answer is fas...

4 years ago | 2

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How can I insert a square root in y-axis of curve ?
You can use latex ylabel('$$\theta \quad \left(10^{-3} \mathrm{C/m} \sqrt{\mathrm{kg}}\right)$$','Interpreter','latex') also ...

4 years ago | 2

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Answered
Multiple linear regression coefficient calculation
Assuming your data are in rows (y is a column vector), isn't that just X=[ones(size(x1)),x1,x3,x3] see https://www.mathworks...

4 years ago | 0

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How to vectorize an equation involving pair-wise distance computation, to improve the speed of computation?
I think you should be able to loop only once over the reference point , then take then compute difference vectorially. Also, in...

4 years ago | 1

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Answered
How can I draw the following blue color tone intensity figure using the Newtons Raphson basin of attraction code?
Organize your "list" of initial guesses (x,y) as a meshgrid [X,Y] = meshgrid(x,y) Then easier to loop through the "unwrapped" ...

4 years ago | 0

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how to merge multiple timetable
If the tables have the same columns, you should be able to simply vertically concatenate them and sort t0 = sortrows(vertcat(t1...

4 years ago | 1

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Plotting 3D graph with ODEs
If your ODE result "population(t)" a scalar value, then yes, you can use surf() if your [A,B] is defined using meshgrid.

4 years ago | 0

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Indexing concurrent array elements and incrementing
First you could use "reshape" to create a 2D array whose rows corresponds to a record, then slice up the 2D array into however m...

4 years ago | 0

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Answered
UITable in app designer-Matlab
I think this works if you have a recent version of matlab, you can place the uitable inside a uigridlayout, and set the "cell" h...

4 years ago | 2

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Counting occurrence of keys and values for Containers.Map in another Containers.Map
Just considering the keys, you can use ismember (though I'm not sure why there's a limitation that cells must be cell arrays of ...

4 years ago | 0

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Answered
How do I plot logarithmic error?
In log space, spacing is multiplicative, not additive, so you want to express your top and bottom curves as multiples of your ba...

4 years ago | 0

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Answered
How do I plot logarithmic error?
use the log10() function? The question isn't super clear...

4 years ago | 0

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Convert numerical equations to latex
Assuming the results will always be integers, here's a simple way %==== Numerical Values (Unrounded) ============== a = 128387...

4 years ago | 0

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find indices of each first repeated elements in the array (full of repeated values)
It's too early for me to attempt to understand your 2nd problem, but for the first problem try using "diff" indexB0 = [1,1+find...

4 years ago | 0

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