# Orr Streicher

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**Content Feed**

Question

zpk function for atlab R2020b

Hey, I tried to use the function 'zpk' (https://www.mathworks.com/help/control/ref/zpk.html) but got the following error: "Unr...

ongeveer 2 jaar ago | 1 answer | 0

### 1

answerQuestion

dimensions problem with processImagesMNIST

Hi, Im trying to load MNIST dataset based on the instructions here: https://www.mathworks.com/help/deeplearning/ug/data-sets-f...

ongeveer 2 jaar ago | 0 answers | 0

### 0

answersQuestion

Functions name duplication in toolbox

Hi, I have a problem with function name duplication. I am using a toolbox in which i have a function called "kmeans" ( a name...

ongeveer 2 jaar ago | 1 answer | 0

### 1

answerQuestion

maxk from subset of array

Hi, I would like to solve the following prblem: Lets say i have the vector :v=[10,22,3,-5,8,6,100,30,12,9] I want to find the...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

Difference between eigs and svds

Hi, Im trying to find the 6 smallest eigenvalues and thier coresponding eigevectors of a matrix L. i tried the 2 following com...

meer dan 2 jaar ago | 2 answers | 0

### 2

answersQuestion

Search window in KNN

Hi, I have a data marix D in size of Nxd where N is the number of samples (lets say 50,000) and d is a sample dimention (lets ...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

Graph Laplacian and adjacency matrix

Hi, Does anyone know an afficient way to compute sparse adjacency matrix and Graph Laclcian directly from a data matrix ? I sa...

meer dan 2 jaar ago | 2 answers | 0

### 2

answersQuestion

Spiral density function implementation

Hi, I need to define a Spiral density function with parameters theat (the angle of the spiral) and r (the radius) Does anyone ...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

Define a density function and draw N samples of it

Hi, So i want to define a density function and draw N samples of it. does anyone know how can i do it? for example if i want ...

meer dan 2 jaar ago | 2 answers | 0

### 2

answersQuestion

Conditional normal random distribution

Hi, I would like to create a spiral in matlab while the radius is dependent on the angle theath in the following way: thate is...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

Efficient way to do elementry operations on sparse matrix

Hi, I am working with sparse matrices and i wonder if there is an efficient way to scan the elements of this kind of matrices a...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

fftfilt function inputs and output

Hi, Does the inputs and output of the function fftfilt should be in the time or frequency domain? i coundt understaned it bas...

bijna 3 jaar ago | 2 answers | 0

### 2

answersQuestion

pos argument in steervec function

Hi, I would like to create a steering vector using steervec function. As far as i understand from the documentation the argume...

bijna 3 jaar ago | 1 answer | 0

### 1

answerAfficient way to create "sum matrix"

Hi, So its looks like i was happy too soon =P Since my vector g is very large ( vector in size of 65536) I got memrory error...

bijna 3 jaar ago | 0

Question

Afficient way to create "sum matrix"

Hi, So i would like to implement a function that get a vector as input lets : g=[g1, g2, g3] and return a matrix that contain...

bijna 3 jaar ago | 2 answers | 0

### 2

answersQuestion

Make a weight matrix sparce

Hi, I have an image in size of 256x256. I would like to implement an algorithem that use graph theory on this image so i wan...

bijna 3 jaar ago | 0 answers | 0

### 0

answersQuestion

Efficient way to calculate distance matrix between cells

Hi, So i have an image with size of 512x512 pixels For each pixel i calculte an environment of 11x11 nighbours so now i have ...

bijna 3 jaar ago | 1 answer | 0