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# kowshik Thopalli

28 total contributions since 2016

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Question

Reshaping/vectorizing a n-d matrix to a vector along each dimension
Lets say I have a matrix given by a=randn(4,4,5); How do I get a 80*1 vector along each dimension. That is ...

circa 3 anni ago | 1 answer | 0

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answer

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

oltre 3 anni ago

Answered
How to utilize nodes to plot a 3D object?
Ok. I have attached the script to do this. You are reading the data wrong. I have also attached the image. Hope this helps. ...

oltre 3 anni ago | 0

Answered
Develop a Matlab function that remove all zeros  in an input vector(using while  loop)
I agree with cvklpstunc that you dont need a while loop. If you are still looking for a while loop implementation, here is the c...

oltre 3 anni ago | 0

Answered
Distance from time and velocity vectors..HELP
trapz cannot be used here because you are passing only one value for x and y. Moreover direct integration is not t...

oltre 3 anni ago | 0

Question

Optic FLow only on interest points
I was wondering if there is any method to compute optical flow between two frames only considering key or interest points(which ...

oltre 3 anni ago | 1 answer | 0

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Question

Hand segmentation from an RGB and depth image obtained from kinect device
Hi all. I am trying to use the <http://eeeweba.ntu.edu.sg/computervision/people/home/renzhou/HandGesture.htm dataset> from this ...

oltre 3 anni ago | 1 answer | 0

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Answered
How to save iteration values as array if for loop- for t=0:0.5:3?
Use another index value outside the loop and keep updating it inside the loop such as index=1 for t=0:0.5:3 ...

oltre 3 anni ago | 1

| accepted

Answered
How to change the positions of elements in a vector?
Using the find() function you can do this very easily. [R,c]= find(myVector==3) This gives you the positions of ...

circa 4 anni ago | 0

Answered
How do I delete columns from a matrix based on an array
As you can imagine there is more than one way to do this. here is one method.Not elegant but works A=[4 3 5 6 7; 1 4 ...

circa 4 anni ago | 1

Answered
Empty Matrix: 1-by-0 error
help linspace() y = linspace(x1,x2,n) generates n points. The spacing between the points is (x2-x1)/(n-1). so here...

circa 4 anni ago | 0

Answered
I am new in MATLAB. Please suggest me the procedure for how to pass the dataset files to the TreeBagger classifier.
Below is the Matlab documentation. Go through this. It is well written. https://www.mathworks.com/help/stats/treebagger.html ...

circa 4 anni ago | 0

Answered
How to find an unknown parameter from a equation fitted to a data-set in MATLAB 2016b ?
I might be wrong here. If you know all of these values and dont know only n cant you just find n through algebra. I mean solvi...

circa 4 anni ago | 0

Answered
Compare results of three cells
Assuming you wish to find the maximum of the corresponding elements in each cell cell1={rand(1,120)}; cell2={rand(1...

circa 4 anni ago | 0

Answered
Help with a minimize problem
I dont understand. two_var =@(x) 242*log(1-x(1)-x(2))+120*log(2*x(1)-x(1)^2-2*x(1)*x(2))+79*log(2*x(2)-x(2)^2-2*x(1)*x...

circa 4 anni ago | 0

Answered
How to find the number of repeating sequence in an array?
You can do the following. Treat the sequence as a string. Divide the string into a cell with each cell containing 3 digits. Then...

circa 4 anni ago | 0

| accepted

Question

How to join or merge two Image Data Stores?
If I have two image datastores and I wish to concatenate them. How can I do that? Thanks

circa 4 anni ago | 5 answers | 0

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answers

Question

Split an ImageDatastore with every 'pth' file per label
Hi, the splitEachLabel() for the imageDatastore() when used as if true [imds1,imds2] = splitEachLabel(imds,p) end ...

circa 4 anni ago | 1 answer | 0

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answer

Answered
Loading data in a function and passing it
In the else condition- write b=load('b.mat'), w=load('w.mat') etc. Does this solve your problem?

circa 4 anni ago | 0

Question

How to nest a cell array with existing cell array
Hi, I have a cell array Cells which is 1 x 190, and each cell is again a 1 x 20 cell array. Now for each cell in this 1 x 20 arr...

circa 4 anni ago | 1 answer | 1

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answer

Solved

vectorization in N
For a given integer n (n>1), compute the sum f (i) (1 <= i <= n) where f (i) = 1 if n is odd and 2 otherwise.

oltre 4 anni ago

Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

oltre 4 anni ago

Solved

Find a subset that divides the vector into equal halves
Given a vector x, return the indices to elements that will sum to exactly half of the sum of all elements. Example: Inpu...

oltre 4 anni ago

Solved

Is my wife right?
Regardless of input, output the string 'yes'.

oltre 4 anni ago

Solved

Determine the number of odd integers in a vector
Determine the number of unique odd integers in a vector. Examples: Input x = [2 5 8 3 7 1]; Output y = 4; Inp...

oltre 4 anni ago

Solved

Given a window, how many subsets of a vector sum positive
Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

oltre 4 anni ago

Solved

Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

oltre 4 anni ago

Solved

Reverse the Words (not letters) of a String
*Description* Change the words of a string such that the words appear in reverse order. You may assume that the string is a n...

oltre 4 anni ago