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**Content Feed**

Question

linsolve consistency problem in system equation

Hi When I run this code I obtain a simple solution. x=rand(1,3); swc(1,1:3)=x+1; syms x1 x2 x3; eqn11=swc(1,1)==x1+1; ...

11 månader ago | 0 answers | 0

### 0

answerscell array error using equationsToMatrix function

Instead of using cell use syms: a=syms(1,3); b=syms(1,3) a(1)=eqn1;a(2)=eqn2;a(3)=eqn3; b(1)=x;b(2)=y;b(3)=z; [A,B] = equat...

11 månader ago | 0

| accepted

Question

cell array error using equationsToMatrix function

Hi in reference to : https://it.mathworks.com/help/symbolic/solve-a-system-of-linear-equations.html I must use this code : s...

11 månader ago | 1 answer | 0

### 1

answerHow many instances of MATLAB can I run simultaneously on Windows/Linux platform ?

Normally you don't need to open different instances of Matlab but you can use the Parallel Computing Toolbox which runs instance...

11 månader ago | 1

| accepted

Question

MODWT IMODWT code without fft

Hi. I studied the maximal overlap wavelet transform and its properties on "Wavelet Methods for Time Series Analysis by Donald B...

12 månader ago | 0 answers | 0

### 0

answersQuestion

fft(x,n) NO BUILT IN FUNCTION WHERE n > size(x)

Hi I'm looking for fft & ifft function code for fff(x,n) where n > size(x). I found this here : https://it.mathworks.com/matl...

12 månader ago | 1 answer | 0

### 1

answerQuestion

MODWT HAAR LOOSES SUMMATION RECONSTRUCTION PROPERTY AFTER COEFFICIENTS THRESHOLDING

Modwt haar is known to be one side causal and shift invariant. It also owns the summation reconstruction property. This mean...

ungefär ett år ago | 0 answers | 0

### 0

answersQuestion

FMINUNC CHECK GRADIENT FAILS

Hello everyone, I'm trying to minimize this function through fminunc running: [ygrad, cost] = tvd_sim_grad(x, lam, Nit,t); wh...

ungefär ett år ago | 0 answers | 0

### 0

answersQuestion

Inexplicable Symbolic Function problem

When I type : syms xi syms yi syms lami f(xi,yi,lami) = 1/2.*sum(abs((yi-xi).^2)) + lami.*sum(abs(diff(diff(xi)))); ...

ungefär ett år ago | 1 answer | 0

### 1

answerQuestion

fminunc : A VERY STRANGE PROBLEM!

Hi I use fminunc to solve a minimization problem. Fminunc make hundeads of calls of a simple function which I optimized for the...

mer än ett år ago | 3 answers | 0

### 3

answersQuestion

Error using gpucoder.profile (line 41)

I have a problem running: cfg = coder.gpuConfig('exe'); cfg.GpuConfig.MallocMode = 'discrete'; gpucoder.profile('tvd_sim2_ME...

mer än ett år ago | 0 answers | 0

### 0

answersQuestion

MISSING nvToolsExt64_1.lib

gpucoder can't see nvToolsExt64_1.lib even if it exist ad it's declared correctly in the environement variable NVTOOLSEXT_PATH...

mer än ett år ago | 1 answer | 0

### 1

answerQuestion

how to modify the wmulden function to make it shift-invariant?

Hi everyone! I am trying to modify the wmulden function to make it shift-invariant. Let me explain better. When I run wmuld...

ungefär 2 år ago | 0 answers | 0

### 0

answersQuestion

wmulden function exact algorithm

Hello. I am trying to understand how exactly the algorithm of the "wmulden" function works. I studied Aminghafari, M .; Cheze,...

mer än 2 år ago | 0 answers | 0

### 0

answersCustom transfer function with learnable parameters and custom initializing in shallow neural network

I'm interested in your work,have you meet some improvement?

nästan 3 år ago | 0

Question

How to generate my custom copula data?

Hello! When I calculate the copula using copulatif : uu = ksdensity(x,x,'function','cdf'); vv = ksdensity(y,y,'function'...

nästan 4 år ago | 0 answers | 0

### 0

answersQuestion

Inverse Cumulative Distribution Function for a Custom PDF.

Hello! I'm looking for a function similar to norminv in wich you can sample data at the probability values in the vector p acco...

nästan 4 år ago | 1 answer | 0

### 1

answerQuestion

MATLAB DualCPU Hyper-Threading support

Hello everyone. I'm going to buy a dual CPU workstation and would like to know if a vectorized MATLAB code uses all the cores...

mer än 4 år ago | 1 answer | 0

### 1

answerQuestion

Xeon Phi Knights Mill

Hello taking into account the technical specifications found here: https://ark.intel.com/content/www/us/en/ark/products/12869...

nästan 5 år ago | 1 answer | 0

### 1

answerQuestion

Levenberg-Marquardt Backpropagation GPU computing

Since MATLAB did not implement the Jacobian calculation for GPU computing I would like to know if some user has made a version ...

ungefär 5 år ago | 0 answers | 1

### 0

answersQuestion

It's a bug?

I discovered a potential bug and I want to report it: Matlab R2018a windows 10 alfa=-0.0052+(61-1)*0.0001; reasoning this i...

mer än 5 år ago | 1 answer | 0

### 1

answerQuestion

ERROR : Missing domain attribute 'min'

when I use : symmin=@(x,y)feval(symengine,'min',x,y); symmin(3,4) ans= 3 but if I want to find the minimum of a vector : s...

mer än 5 år ago | 2 answers | 1

### 2

answersQuestion

Assertion failed using parfor

When I use this code I obtain this error: Error using consume_assign (line 23) Assertion failed. Error in parprova>(p...

ungefär 6 år ago | 3 answers | 2

### 3

answersQuestion

MATLAB : PROBLEM WITH CELLFUN AND TWO VARIABLES FUNCTION.

temptemp is 1 X 44 cell : every cell is 1 X 3130 array double. tempwmul is 1 X 44 cell : every cell is 1 X 1 trained netw...

mer än 6 år ago | 1 answer | 0

### 1

answerSolved

Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

nästan 7 år ago

Question

using wavelet denoising as preprocessing function with real time data.

When I train a neural network I need to process the training data X with multivariate wavelet denoising obtaining a new data s...

nästan 7 år ago | 0 answers | 0

### 0

answersQuestion

wmulden using previous calculated parametes

When I apply wmulden to an array A I obtain an array B with denoised signal: level = 4; wname = 'sym2'; ...

nästan 7 år ago | 0 answers | 0

### 0

answersQuestion

How to disable validation and test data set in neural network

I need to train patternnet neural network using all data set in the training set and avoiding validation check. I found two met...

nästan 7 år ago | 2 answers | 0

### 2

answersQuestion

pipeline or PSOM programming

I'd like to know if exists a resource in Matlab's toolboxes to manage pipeline or PSOM programming and where it is located or if...

mer än 7 år ago | 0 answers | 0

### 0

answersQuestion

bias problem with trainb

I need to train a supervised neural network to linearly separate a set of inputs with logical output 0,1 in batch training. My ...

mer än 7 år ago | 1 answer | 0