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Kamyar Mazarei


Last seen: 1 year ago |  Active since 2021

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How to Plot Decision Boundary for SVM
Hi, after i make my model using 'fitcsvm' and predict the test data, id like to know the boundary and plot it i cant find any...

3 years ago | 1 answer | 0

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answer

Question


Subploting 2 plots vertically
in subplot if i put subplot(2,2,1:2) ill have a horizental for 1 and 2 but what if i want a subplot for 1 and 3 (vartical)? is...

3 years ago | 1 answer | 0

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answer

Question


Testing a neural network after training it
hi i have a 2 class problem and im using vgg16 as a convnet to classify im using deep network designer app and after training ...

3 years ago | 1 answer | 0

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Question


invalid training data the output size of the last layer (1000) does not match the number of classes (2)
hi im using vgg16 app to classify images of CAT scan and gives me this error for training i have 1000 images of covid and 999...

3 years ago | 0 answers | 0

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answers

Question


need help making a 'for' loop to make a new matrix
hi i have 40 matrixes 13x16 i want to make a new matrix 1x40 with max values im using this: for iii=1:40 M(1,iii...

3 years ago | 2 answers | 0

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answers

Question


How do i upload all images at once?
hi lets say i have 2 folders called 'test' and 'train' and each one has 2 files 'A' and 'B' which each one has about 1000 image...

3 years ago | 1 answer | 0

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answer

Question


load a folder of excel files
hi i have 146 excel files in a folder and want to load them all i dont want to go through import window everytime, so is ther...

3 years ago | 1 answer | 0

1

answer

Question


Finding letter in an image using convolution (ocr)
hi i want to find letters in an image using conv2 and then highlight the letter in original image just like OCR does lets s...

3 years ago | 0 answers | 0

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answers

Question


making a typical multi frequency non-stationary sin signal
hi i want to creat a simple signal for a presentation on wavelet i just need a simple signal that is like, sin with 5hz then 1...

3 years ago | 0 answers | 0

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answers

Question


add variable in the graph legend
hi i have 2 matrixes A and CC which are named 'Org' and 'Rec' and variable CR and PRD i want to plot A and CC on each other...

3 years ago | 1 answer | 0

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answer

Question


line equation and finding the distance to a 3rd point
i have a matrix A=[a1 a2 a3 a4 . . . i want to calculate distance form a2 to a1_a3 line i want something simple like this (...

3 years ago | 0 answers | 0

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answers

Question


expanding matrix with linear line between new samples
hi lets say i have a 1x20 matrix called A which are samples of a plot i want to expand A to be 1x50 when i try to make it l...

3 years ago | 1 answer | 0

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answer

Question


turn a sentence into matrix of words
hi i have A=1xn characters sentence i want to create matrix B=1xn size which B hast words in a matrix set thank you edit: i...

3 years ago | 2 answers | 0

2

answers

Question


removing words from texts with 'removeWords' ???
hi i want to remove 150 words from 2226 texts (1x150 and 1x2226 matrixes) i googled it and this came up https://www.mathworks...

3 years ago | 1 answer | 0

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answer

Question


adding noise to images
hi i need to add x% noise ONLY to black areas of my image (image is grayscale) so x% of the black areas be replaced with white...

3 years ago | 1 answer | 0

1

answer

Question


using 520 samples train 519 and test 1 using LOOCV
hi i have 3600x520 matrix (b) for patterns and a 26x520 matrix (t) for targer values i want to train a perceptron using newp(),...

3 years ago | 0 answers | 0

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Question


Classifying 2D patterns (images of alphabet letters) using Perceptron rule
hi i have asked this question couple of times in different forms but didnt get any real answers i have 520 images of alphabet l...

3 years ago | 0 answers | 0

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answers

Question


how to load images in order
hi i have 520 images in total 20 images in 26 files each images is names 1 to 20 and files 1 to 26 i want to load them 1 by ...

3 years ago | 1 answer | 0

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answer

Question


create new matrix with another matrix (downsampling)
hi i have a 1xm matrix 'A' and want to make a new matrix that is 1xn 'B' matrix B has values from matrix A IF the change in v...

3 years ago | 0 answers | 0

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answers

Question


simple matrix process for some values
hi im new to matlab i want to process some of the matrix values but not all like if i have a matrix i just want to add 10 to...

3 years ago | 1 answer | 0

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answer

Question


perceptron classifier for alphabet
hi i need to make an alphabet perceptron classifier using "newp" command i have 20 samples (fonts) for each letter of aphabet ...

3 years ago | 0 answers | 0

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answers

Question


how to uplad and process multiply images
hi i have 520 images i want to upload and make them black-white only (binary) i know how to do it 1 by 1 but not sure how to ...

3 years ago | 2 answers | 0

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answers

Question


need beginers guide on neural network perceptron classifier
hi im an EE and not fimiliar with matlab or neural network i have this homework to make a proceptron classifier with 20 trainin...

3 years ago | 1 answer | 0

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answer

Question


how to conver image matrix into bipolar values
hi im fairly new to matlab no idea what im doing i have set of images that i have to convert into bipolar values, and all i ca...

3 years ago | 1 answer | 0

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answer