maryam

Actif depuis 2013

Followers: 0 Following: 0

Message

Statistiques

Feeds

Question

how i should enter the inputs, train and test data in a fuzzy model?
hi i used fuzzy logic toolbox for prediction. there are 7 inputs which are data like maximum, average, etc. the inputs are time ...

environ 9 ans il y a | 1 réponse | 0

0

réponse

Question

mix two matrices to create new one
hi friends. i have two matrices A and B as follows: A=[A1;A2;....;A10] and B=[B1;B2;....;B10]; i want to create 10 new matrice...

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

find the probability in normal distibution
hi everyone. i have two normal distribution curves which met each other at two points A and B. how can i find these two points a...

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Question

my computer shuts down when i run a matlab code
hi everybody since yesterday i have been trying to run a matlab code (feature extraction using pca). the original matrix is 819...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

How can i divide a (matrix) into two parts
i have a 300*10 matrix. i want to divide it into two parts. the size of desired parts are 240*10 and 60*10 respectively. A=...

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Question

how to choose matrix columns randomly?
hi all. i have two related matrices (A and B). i want to choose randomly 80% of one matrix's columns (e.g A) and corresponding v...

plus de 10 ans il y a | 3 réponses | 0

3

réponses

Question

improve the performance of nprtool
I used the neural network toolbox ( nprtool ) for classifying my objects. i used 75% of data for training and 15% for both valid...

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Question

how to cluster using matlab
hi all. im completely new in clustering!would you please explain to me how i can cluster a 8191*300 matrix into 3 groups? thank...

plus de 10 ans il y a | 1 réponse | 1

1

réponse

Question

change the order of columns in a matrix
hi friends. i have a 8000*300 matrix. i want to change the order of columns so that the most similar columns stand together. co...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

replace "inf " with a value
hi all. i have a 8192*300 matrix. some of its elements are "inf". i want to replace these values with average of cells before a...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

How to create an envelope on a specific signal
could anybody please guide me how i can find the lower & upper envelope on a signal? would you give me a simple example?thank yo...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

Intelligent algorithm for classification
hi everybody. i need to classify some data using an algorithm such as neural network. but as you know it doesnt accept inf valu...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

replacing the NAN with value
hi. i have 2 matrices V & I. some elements of I are zero. then R=V/I returns unavailable values. i need to keep the size of 3 ...

plus de 10 ans il y a | 4 réponses | 0

4

réponses

Question

how to use xlsread for creating new matrices?
I have 1000 excel files (named H) and need to import the parameters of sheet 2 (named Q) to 1000 new matrices in matlab for anal...

presque 11 ans il y a | 2 réponses | 0

2

réponses

Question

how to apply Sgolayfilter
hi, i have a noisy signal with sampling frequency of 2*10^5 and nominal frequency of 50 hz. i want to apply sgolay filter to sm...

environ 11 ans il y a | 2 réponses | 0

2

réponses

Question

finding data of a plot
hi. i have a plot like this and want to find these data value. i use "save work space as" and save data in a .mat file. but whe...

environ 11 ans il y a | 1 réponse | 0

1

réponse

Réponse apportée
how to find non zero minimum
this is simple :) name the matrix A (for example) then : m=min(A(A>0)); m returns the non zero minumum

environ 11 ans il y a | 25

| A accepté

Question

how to find non zero minimum
hi, i have a [8200,1] matrix with zero and positive values. i need to find non zero minimum. please guide me if you can

environ 11 ans il y a | 3 réponses | 0

3

réponses

Question

add xy coordinates to a graph
<</matlabcentral/answers/uploaded_files/312/untitled.jpg>> hi, i have a graph like this picture, local maxmimus are shown wit...

environ 12 ans il y a | 1 réponse | 0

1

réponse

Question

add data points to a graph
hi i have a matlab figure, and i'd like to highlight some important points on it, could anybody help me? tnx in advance

environ 12 ans il y a | 3 réponses | 0

3

réponses

Question

save matlab output to excel
hi i have some data in command window like: n x y 1 9 7 2 2.5 3 3 45 23 ...

environ 12 ans il y a | 1 réponse | 0

1

réponse

Question

add vertical lines to an image
i've loaded an image and i'd like to add some vertical lines on it,could anybody help me? the image is voltage curve and i need ...

environ 12 ans il y a | 2 réponses | 0

2

réponses