Matt J
Estadística
304 Preguntas
12.412 Respuestas
39 Archivos
Cody5 Problemas
33 Soluciones
CLASIFICACIÓN
6
of 301.513
REPUTACIÓN
32.296
CONTRIBUCIONES
304 Preguntas
12.412 Respuestas
ACEPTACIÓN DE RESPUESTAS
78.95%
VOTOS RECIBIDOS
4.300
CLASIFICACIÓN
200 of 21.310
REPUTACIÓN
6.760
EVALUACIÓN MEDIA
4.90
CONTRIBUCIONES
39 Archivos
DESCARGAS
130
ALL TIME DESCARGAS
55813
CLASIFICACIÓN
10.959
of 175.013
CONTRIBUCIONES
5 Problemas
33 Soluciones
PUNTUACIÓN
598
NÚMERO DE INSIGNIAS
7
CONTRIBUCIONES
0 Publicaciones
CONTRIBUCIONES
0 Público Canales
EVALUACIÓN MEDIA
CONTRIBUCIONES
10 Temas destacados
MEDIA DE ME GUSTA
2
Feeds
textscatter example, and behavior, is mysterious
Here's an alternative, whose behavior you might like better: rng("default") n = 11; x = rand(n,1); y = rand(n,1); str = str...
alrededor de 3 horas hace | 0
Can you get matlab to add a really small number to a big number and retain precision
From the quadratic formula, you can see that p is the right hand root of the quadratic equation, 0.5x^2 + 1e17x - 0.5e18 = 0 I...
alrededor de 11 horas hace | 0
Why is Preallocating arrays important in MATLAB, and how does it improve performance compared to dynamically growing arrays?
When it is acceptable to avoid preallocation Looping backwards is an alternative to pre-allocating. You're not really "avoidin...
1 día hace | 0
Does dicomreadVolume automatically rescale the image?
You should manually apply it.
2 días hace | 0
| aceptada
When plotting 3D graphs in MATLAB, can the x and y axis labels be made flush with the x-y plane, as shown in the figure below?
There are some File Exchange compositions that seem to be able to do it, e.g., https://www.mathworks.com/matlabcentral/fileexch...
6 días hace | 0
| aceptada
How to add a shared ylabel on the right hand-side of a figure, when combining tiledlayout and yyaxis?
One way. t = tiledlayout(4,1); for i = 1:4 nexttile title("Tile"+i) yyaxis left plot(rand(1,10)) ...
8 días hace | 1
trainnet function - randomness and repeatability
In addition to random initialization of the Learnables, as mentioned by @Steven Lord, you are using the default Shuffle setting,...
9 días hace | 0
Eigendecomposition not fully utilizing all cores on M1 pro, matlab 2025b
Perhaps bundle the jobs together using pageeig?
10 días hace | 0
Use ginput in a datatip
There is imdistline, but it requires the Image Processing Toolbox.
13 días hace | 0
Given an observer looking to the center of an ellipsoid, how can I determine the distance through the ellipsoid if none of the axes are aligned with this look angle?
Given an observer looking to the center of an ellipsoid After converting to ECEF coordinates, xc=[xc1;xc2;xc3] ...
15 días hace | 0
How can I fit a curve with three independent variables in MATLAB R2024b?
lsqcurvefit from the Optimization Toolbox has no restriction on the number of independent variables (or on bounds), but you will...
16 días hace | 0
Matrix 10x10 with same number in each row by column.
M=repelem(1:10,10,1) M = ceil( reshape(1:100,10,10) /10 ) M = fft(1:10,10,1)
19 días hace | 0
How to use the nonlinear least square fitting to fit a transfer function？How to improve the fitting accuracy
Assuming the things @Catalytic pointed out above were mistakes, and also if Y is supposed to be the impulse response, then the f...
19 días hace | 0
| aceptada
How to use the nonlinear least square fitting to fit a transfer function？How to improve the fitting accuracy
Your initial point, T0 = ones(10,1); %% intial values looks very arbitrary. You should devise a smarter initial guess. Aside...
19 días hace | 0
Discussion
Shouldn't max([])=-inf ?
Matlab seems to follow a rule that iterative reduction operators give appropriate non-empty values to empty inputs. Examples inc...
20 días hace | 0
Why Does polyval Return Zero When the Coefficients are Empty?
For non-empty A and B, we have the general relation, polyval([A,B],z)=polyval(A,z)*z^numel(B) + polyval(B,z) Extending this to...
20 días hace | 0
| aceptada
"Index exceeds 37" when 35 variables?
The root cause, as I commented above, is probably that you've attempted to construct a fit type with 3 independent variables, wh...
22 días hace | 2
Dependency analyzer refuses to work
Do you really need all the features of the app environment for what you are doing? You can analyze dependencies programmatically...
23 días hace | 0
Best way to relabel axis as pi for trig functions.
x = linspace(0,2*pi,200); y = sin(x); plot(x, y) ax=gca(); ax.XTick=0:pi/2:2*pi; ax.TickLabelInterpreter='latex'; ax.XTi...
23 días hace | 2
| aceptada
Efficient overlapping block processing with nested sub blocks (similar to im2col with stride)
If the reordering is something you want to repeat on multiple matrices of the same size and block structure, then you can use yo...
25 días hace | 1
obtain an equation for the curve joining maximum points, using an appropriate interpolation or “curve fitting” process???
I think you are being asked to derive the equation for the maxima by hand -- an easy calculus exercise since the trajectories ar...
25 días hace | 0
identifying shapes in image
See this FEX download, https://www.mathworks.com/matlabcentral/fileexchange/181422-fit-polyshape-to-objects-in-image?s_tid=prof...
26 días hace | 0
SNR goes down as noise filtering is increased.
Depending on the data you provide, the theoretical assumptions of a Wiener filter (signal stationarity, white noise, etc...) ar...
28 días hace | 0
Odd behavior of unstack in Matlab2025b
The change occurred in R2020a and was documented, https://www.mathworks.com/help/releases/R2024b/matlab/ref/table.unstack.html?...
29 días hace | 0
Can I hade the Figure toolbar without hiding the Axes toolbar?
figure(Toolbar='none')
29 días hace | 0
Nested tiledlayout: can parent tiles have different widths depending on number of child tiles?
It might be better to us e a grouped bar plot, e.g., Y = [5 3 7 0 0; 6 4 2 1 0; 4 8 5 1 6]; gradientGroupedBar...
30 días hace | 0
How to change the arrangement of plots in a tiled layout even if the plots are not empty?
One way: tl=tiledlayout('vertical'); for i=1:3, nexttile; plot((1:5)+10*i); title(string(i)); axis square; end tl=transpos...
alrededor de 1 mes hace | 0
| aceptada
How do I perform Image segmentation in an RGB image using pattern?
load Image [r,g,b]=imsplit(I); lev=multithresh(r,2); L=imquantize(r,lev); H=bwareafilt( imfill(L==2,'holes') ,1) ; BG= ...
alrededor de 1 mes hace | 1
| aceptada
Curve fitting confidence intervals - discrepancy in manual CI plot and predint plot
Also, what is predint and how is this different from manually plotting the CIs as I did? predint predicts an uncertainty inter...
alrededor de 1 mes hace | 0
| aceptada
How to preserve the 3d plot box, when changing patch visibility.
Here's something a little fancier, and maybe more robust. It captures (and reasserts) all relevant properties of the plot perspe...
alrededor de 1 mes hace | 1
| aceptada
