# danielle sisserman

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Question

call function for each combination of rows in A and columns in B

Xtrain = [1 2; 3 4; 5 6]; Xtest = [7 8 ; 9 10]; kernel = @(x1,x2) norm(x1 - x2); m = size(Xtrain, 1); n = size(Xte...

2 years ago | 2 answers | 0

### 2

answersfunction call returns "index (1.2): subscripts must be either integers 1 to (2^63)-1"

changed 2(1+y)/(4 + (1+y)^2); to 2*(1+y)/(4 + (1+y)^2); and it works.

2 years ago | 0

| accepted

Question

function call returns "index (1.2): subscripts must be either integers 1 to (2^63)-1"

I have the following function: u_1 = @(y) 2(1+y)/(4 + (1+y)^2); I call it: u_1(0.2) I get the following error: inde...

2 years ago | 2 answers | 0

### 2

answersQuestion

Creating vector and matrix from vector

function w = svm(Xtrain, Ytrain) first, I want to create the following vector: data = [Xtrain(1)*Ytrain(1) Xtrain(2)*Yt...

2 years ago | 1 answer | 0

### 1

answerQuestion

two functions with descriptions in one graph

for this code: % approximating f plot(X_in.', U.'); xlabel('x'); ylabel('approximate f(x)'); legend_strs = compose('App...

2 years ago | 1 answer | 0

### 1

answerQuestion

construction of diagonal matrix of functions

I have three functions: f_1, f_2, and f_3. I want to construct the matrix A for the following linear system: so the fi...

2 years ago | 2 answers | 0

### 2

answersQuestion

ploting a 2D graph with multiple lines

Hi, I'm a bigginer and what I need is too specific. I need to plot a graph that looks exaclty like this: I have a h vector...

2 years ago | 1 answer | 0

### 1

answerQuestion

optimize my matrix function

this is my code: t=1; for j=k_indices knn_labels(t,1) = classifier.Ytrain(j,1); t ...

2 years ago | 1 answer | 0

### 1

answerQuestion

size() function returns wrong size

i have the following line of code: s = size(k_distances) k_distances is a 1x1 matrix: but the size function returns a s...

2 years ago | 1 answer | 0

### 1

answerQuestion

Undefined function or variable

I am getting the following error: this is the function call: k_distances,k_indices = findKNN(classifier,Xtest(i:1,:...

2 years ago | 1 answer | 0

### 1

answerQuestion

Not enough input arguments.

I am trying to create a mX1 matrix that is initialized with zeros. this is what I'm doing: predictions = zeros((size(Xtest,1...

2 years ago | 1 answer | 0

### 1

answerQuestion

Not enough input arguments.

Hi, I am very new to matlab and need some basic help. function classifier = learnknn(k, d, m, Xtrain, Ytrain) classifier ...

2 years ago | 0 answers | 0