Andre

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Actif depuis 2014

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Question

What is the search range of a hidden layer size in a regression task?
Searching for answers here in the forum, I read one answer by Greg that usually do: "An outer loop H = Hmin:dH:Hmax over numb...

plus de 10 ans il y a | 1 réponse | 0

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Question

How to apply a zero mean scaling in another set ?
I did a zero mean scaling: x_mean = mean(input); x_out=input-x_mean; Scaling the output by maximum: x_max = max(...

presque 11 ans il y a | 1 réponse | 0

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Question

Why scaling data inside [-1,1] ?
What are the diferences between normalizating features in [0,1], [-1,1] or [-5,5] with NN minmax ?

presque 11 ans il y a | 1 réponse | 0

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Question

How to remove repeated values mantaining the first one from an array ?
I have something like: 10000111111111011011100000111011000111111011000000010101011111111.... how to: 0000010000...

presque 11 ans il y a | 2 réponses | 0

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Question

Neural Mapminmax option for a set
When I use mapminmax like, net.inputs{1}.processFcns = {'removeconstantrows','mapminmax'}; net.outputs{2}.processFcns = ...

plus de 11 ans il y a | 1 réponse | 0

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Question

How to testing a normalized trained fitnet ?
Hi, how can I get the ranges of the normalization process with fitnet ? I used: {'removeconstantrows' , 'mapminmax' }; ...

plus de 11 ans il y a | 1 réponse | 0

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Question

Can I use a dynamic NN for a curve fitting ?
Hi, I have a situation that I'm thinking a TDNN (my data have a dynamic behavior), and I want to fit it. I gotta results ...

plus de 11 ans il y a | 1 réponse | 0

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Question

Anyone already did an one-cycle full cosine filter ?
I didnt find examples in matlab manuals or here in the forum. Andre

plus de 11 ans il y a | 1 réponse | 0

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Question

How do I filter correctly ?
Hi, I have two small signals sampled both on 15360Hz: 1)"almost" a SIN, with fundamental frequency on 60Hz. 2) a noise si...

plus de 11 ans il y a | 1 réponse | 0

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Question

How good was a fit ?
Hi, 1) Does Matlab have implemented R, R^2, S, K-S, or other tools that can indicate how good is a fit ? 2) This is a gene...

plus de 11 ans il y a | 1 réponse | 0

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Question

How can I perform a Fourier analysis (magnitude) of an input signal over a one cycle of the fundamental frequency of a signal ?
I found a block for SIMULINK, anybody helps me to implement it on a .m file ? Thanks, Andre

plus de 11 ans il y a | 1 réponse | 0

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Question

How to get the fundamental frequency magnitude ?
Hi, I have an array of a pseudo-sin signal. I want to get the fundamental magnitude of it knowing the fundamental frequenc...

plus de 11 ans il y a | 1 réponse | 0

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Question

There is a way to simulate fault inception angle in SimPower?
There is a way to simulate fault inception angle in SimPower?

plus de 11 ans il y a | 1 réponse | 0

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Question

There is a quick way to format clasification input patterns for a NN ?
For example, I have, A = 1 1 2 2 3 3 4 4 I want it without many ifs to be targets for my cl...

plus de 11 ans il y a | 1 réponse | 0

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Question

How to concatenate rows ?
Hi, there is a "not looping" way to concatenate rows into a 1 line ? Example: A=[[ 1 2 3 4 ] ; [ 5 6 7 ...

plus de 11 ans il y a | 1 réponse | 0

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Question

How can I divide a matrix by its columns ?
Hi, for example: [ 1 35 37 29 312 1 321 421 2 34 1 329 412 32 54 . . . 4 421 348 48 445...

plus de 11 ans il y a | 1 réponse | 0

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Question

There is an easy way to get phasor representation ?
I have a periodic signal (x,y) with 1000 samples. (like a sin with 1000 samples). Matlab provides a simple way to get this to...

plus de 11 ans il y a | 2 réponses | 0

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Question

How to set custom parameteres of svmtrain ?
Hi, is there a way to use custom C and gamma (as libsvm) at the svmtrain command ? Thanks, André

plus de 11 ans il y a | 1 réponse | 0

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Question

A way to replace a single number array to a double array.
Hi, there is a simple way (like array(array(:)==1)=5), to do this: array= [ 1 1 0 0 1 ]; t...

plus de 11 ans il y a | 1 réponse | 0

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Question

How to generate sequence integers between two ranges?
Hi, how can I generate sequenced integer numbers between two floats ? Example 1: Ranges: [93.9688 96.9688] Output: [93...

plus de 11 ans il y a | 1 réponse | 0

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Question

Searching different elements from array.
Hi, I have an array, and I want a new array with matches from another array. Like, array=[12 3 4 8 9 3 3 4 1] ...

plus de 11 ans il y a | 2 réponses | 0

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Question

Half split a number in subsequents arrays.
There is a know command to split (half) a number into subsequents arrays ? Example 1: I give a number 100, and want to split ...

plus de 11 ans il y a | 1 réponse | 0

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Question

Continuous outputs on Neural Networks
Hi, can I have the nn toolbox working to output a continuous value ? Instead of training it like: inputs: [10 15 34 41 3...

plus de 11 ans il y a | 1 réponse | 0

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Question

How to improve Classification/Regression generalization?
Hi, I have a dataset 6x20000 as inputs and 100 outpus for a class problem. The problem is that, the dataset is changing ev...

plus de 11 ans il y a | 1 réponse | 0

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Réponse apportée
Ideas for a classification/regression problem.
Thank you very much.

plus de 11 ans il y a | 0

Question

Ideas for a classification/regression problem.
Hi, I have some data, like: X: Car_Weigth, Car_type, Weather_type, Speed_Before_Accident, Drunk_Pilot_Status Y: 1, 2, 3, ...

plus de 11 ans il y a | 2 réponses | 0

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Question

How can I segment a time series signal?
Hi, Any idea how can I break a signal like on this picture? <http://www.inf.ufpr.br/aksantos/signal_example.gif> <<http...

plus de 11 ans il y a | 1 réponse | 0

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