回答済み
Using datastore for a matrix
If you're not going to store your data in memory, then the training samples have to be split up into separate .mat files. You co...

約1年前 | 1

| 採用済み

回答済み
fmincon with handle function input
No, the objective function that you give to fmincon can contain anything, but fmincon's algorithms will assume that the input-to...

約1年前 | 2

回答済み
Why is it necessary/useful to have a HandleCompatible attribute?
Maybe because in some cases you may want a class to have copy-by-reference semantics but you want its subclasses to have regular...

約1年前 | 0

回答済み
How to prove that a destructor must be defined for the Value classes
I think there is an argument to be made for allowing destructors to be defined by value classes, but not for memory management p...

1年以上前 | 2

| 採用済み

回答済み
Indexing a struct inside a struct
If Stint is a struct array, as you say, then it should be indexed with parentheses (), not braces {}, dataA.Stint(jj) Convers...

1年以上前 | 0

回答済み
In the framework FEX, How do I change the projection of 3d points in a different 2D plane (currently it is in XY and want to change it to YX)
Since this concerns an FEX submission, you should probably ask the question in the discussion page of that submission. However,...

1年以上前 | 1

回答済み
How to adjust plots with several subplots with different loops?
ord={x,z,w}; for i=1:3 subplot(1,3,i); h=plot(ord{i},y,'LineWidth',4); [h.Color]=deal('cyan','red','blue...

1年以上前 | 0

回答済み
Calculate multivariable equation with Matlab
You need some sort of model for the line slopes and intercepts as a function of the amperage. There are infinitely many that can...

1年以上前 | 0

回答済み
find the index number using bsxfun command
bsxfun has been deprecated since R2016b. Just use implicit expansion. A = [12 13 15 1]; B = [1 2 12 15 10 13 11 14 3 4 5 6 7 8...

1年以上前 | 0

回答済み
How do I change only one variable in an equation and plot the response for this equation on a graph for all of the different values of this one variable?
F=1;K=1; DR = [0, 0.2, 0.4, 0.6, 0.8]; r=linspace(0,5)'; A = (F/K) ./ sqrt(((1 - (r.^2)).^2) + (4.*DR.^2.*r.^2)); plot...

1年以上前 | 0

回答済み
Using the surf and meshgrid command
Use fimplicit3 instead fimplicit3(@(x,y,z) y - sin(x.* cos(z)) ,[-1,1] )

1年以上前 | 0

回答済み
Display outputs of lsqnonlin in APP designer
Use the OutputFcn option to obtain the values used to populate the iterative display. Then print those values whenever and howev...

1年以上前 | 2

| 採用済み

回答済み
Anyone know what is wrong with my T2* calculations?
The problem with try...catch is that if you have any coding errors in the try block, it will never get executed. Here, you are u...

1年以上前 | 2

| 採用済み

回答済み
insert singelton dimension for broadcasting
Inserting dimensions seems like as much a pain as reshape, but if you must do it that way, here's an approach closer to the Pyth...

1年以上前 | 1

回答済み
How to find the angle of a line with respect to plot window
For context, I am trying to use this angle to produce some text that has the same angle as the line There are File Exchange pos...

1年以上前 | 1

回答済み
Is there an option to overwrite the old release when installing a new one?
No, there is not. You should always manually uninstall any versions you don't want. It is probably a good thing that they make y...

1年以上前 | 2

回答済み
insert singelton dimension for broadcasting
You could also create your own specialized function that does it - [M,N,P,K]=deal(2,3,4,5); A=rand(M,N,P); B=rand(M,N,K); ...

1年以上前 | 1

回答済み
insert singelton dimension for broadcasting
You didn't complete your description of why reshape() is "a bit annoying". If you're going to be doing the same operation repea...

1年以上前 | 0

質問

Behavior with unspecified output arguments
I am a bit puzzled by the behavior I see in the below example. I thought Matlab will always check that a function call assigns a...

1年以上前 | 1 件の回答 | 1

1

回答

回答済み
Replacing old version graphshortestpath with new shortestpath function
I tried replacing graphshortestpath() with shortestpath() and matlab still says the function is undefined. A strange thing to ...

2年弱前 | 0

回答済み
How can I implement this equation in matlab?
All of the summations can be pre-computed using matrix multiplication, e.g. - The results of the...

2年弱前 | 0

| 採用済み

回答済み
Hi! How to fix plane position as a 0 degree angle for Phi azimuth angle or how Matlab understand where Phi angle should be drawn?
A = 3.67 * sin(Phi0) * cos(Theta0); B = 3.67 * sin(Phi0) * sin(Theta0); C = 3.67 * cos(Phi0);

2年弱前 | 0

| 採用済み

回答済み
How would this be solved
Remember that the vector derivative of a parametric curve is tangent to the curve - syms r(theta) r(theta)=[2+3*cos(2*theta)...

約2年前 | 0

回答済み
Unable to perform assignment because the size of the left side is 1 by 1 and the size of the right side is 1 by 2
You cannot do this - x=[1,2,3], x(1)=[5,6] %left side 1x1. right side 1x2

約2年前 | 0

| 採用済み

回答済み
how to plot 100x100 data set
X=rand(100); Y=rand(100); scatter(X,Y);

約2年前 | 0

回答済み
mask a matrix based on values in two arrays
A=accumarray([u,v],1,[100,100]); k=ones(2*padu,2*padv); mask=conv2(A,k,'same');

約2年前 | 0

回答済み
how can i change the value of a variable with a slider in matlab designer?
Here is a doc page talking about the general process of writing component callbacks in appdesigner. In this particular section, ...

約2年前 | 0

回答済み
Minimise memory requirements when importing many images
Why is it better to use NaNs instead of zeros? A value of 0 doesn't conflict with anything because all of your nontrivial values...

2年以上前 | 0

回答済み
How to code binary Fibonacci sequence?
"where the successive elements of the sequence are obtained as the concatenation of the two previous ones" No, see - https://e...

2年以上前 | 0

| 採用済み

質問

A*1 and A+0 could be faster.
Regardless of the size of a matrix A, operations A*1 and A+0 should be very fast. A simple pre-check would detect if one of thes...

2年以上前 | 1 件の回答 | 1

1

回答