Community Profile

# Jigar Gada

### University of Southern California

33 total contributions since 2011

Professional Interests: Signal Processing, Image and Speech Processing, Linear Algebra, Machine Learning

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Solved

Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

12 months ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

12 months ago

Question

How do I create an interactive connected graph in MATLAB GUI
I want to create a connected graph in Matlab GUI. All the nodes of the graph are buttons which changes its color when clicked. A...

3 years ago | 1 answer | 0

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answer

Submitted

Machine_learning_PRTools.zip
A systematic way of using the functions of PR Tools has been created.

5 years ago | 8 downloads |

Answered
How can I rotate a set of points in a plane by a certain angle about an arbitrary point?
Best is to deal this task with Linear Algebra. Let the specified point(around which the rotation has be done) be w = (x1,y1)....

5 years ago | 2

Submitted

Minimum Phase filter
Minimum phase filter by shifting zeros inside unit circle.

5 years ago | 2 downloads |

Solved

Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

5 years ago

Solved

Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

5 years ago

Solved

Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

5 years ago

Solved

Add two numbers
Given a and b, return the sum a+b in c.

5 years ago

Solved

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

5 years ago

Solved

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

5 years ago

Submitted

Two point boundary condition
This file helps to find and plot the solution to a two point boundary problem.

5 years ago | 0 downloads |

Solved

Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

6 years ago

Solved

Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

6 years 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...

6 years ago

Solved

Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

6 years ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

6 years ago

Solved

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

6 years ago

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

6 years ago

Solved

Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

6 years ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

6 years ago

Solved

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

6 years ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

6 years ago

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:...

6 years ago

Answered
what is the best size of input data for neural network?
What kind of network are you using. If you re using back propagation network, then 1. Back propogation gives good results onl...

6 years ago | 0

Answered
how to round the decimal point?
Thanks a lot.. It was so simple.

6 years ago | 0

Question

Feature classification
I am working on Face recognition and have generated the features using PCA and then LDA. While the features are given as input t...

7 years ago | 0 answers | 0

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answers

Question

PCA LDA
Hello, I am doin a project on face detection+recognition. Face detection part is working properly. I hav done face recognition ...

7 years ago | 1 answer | 0

### 1

answer

Question

Eigen faces
I am working on face detection and recognition. My face detection algo using viola-jones is working perfectly. However face reco...

7 years ago | 0 answers | 0

answers

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