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# Shubham Gupta

##### Last seen: 1 day ago
308 total contributions since 2017

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Optimizing for loops by searching some data in cell arrays
I tried cellfun() to get the desired output without using for loops: x = cellfun(@(c)c(find(c==t_interpl(t_ref_cnt))+size(c,1))...

1 day ago | 0

how to plot to my m file
To plot a function, you can use: fplot() link: fplot

1 day ago | 0

Solved

surrounded matrix
With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

7 days ago

Solved

Flip the main diagonal of a matrix
Given a n x n matrix, M, flip its main diagonal. Example: >> M=magic(5); >> flipDiagonal(M) 9 24 1 ...

7 days ago

Solved

Make an awesome ramp for a tiny motorcycle stuntman
Okay, given a vector, say v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 3 6 9 11 0; 6 9 ...

7 days ago

Solved

Back to basics 23 - Triangular matrix
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, return a matrix with all elements above a...

7 days ago

Solved

Back to basics 21 - Matrix replicating
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

7 days ago

Solved

Remove NaN ?
input -> matrix (n*m) with at least one element equal to NaN; output -> matrix(p*m), the same matrix where we deleted the enti...

8 days ago

Solved

Remove the air bubbles
Given a matrix a, return a matrix b in which all the zeros have "bubbled" to the top. That is, any zeros in a given column shoul...

8 days ago

Solved

Find the palindrome
Given the string a, find the longest palindromic sub-string b. So when a = 'xkayakyy'; you should return b = 'kayak';

10 days ago

Solved

DNA N-Gram Distribution
Given a string s and a number n, find the most frequently occurring n-gram in the string, where the n-grams can begin at any poi...

10 days ago

Solved

Mandelbrot Numbers
The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

10 days ago

Solved

Remove the small words from a list of words.
Your job is to tidy up a list of words that appear in a string. The words are separated by one or more spaces. Remove all words ...

10 days ago

Solved

Prime factor digits
Consider the following number system. Calculate the prime factorization for each number n, then represent the prime factors in a...

10 days ago

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Longest Divisor Run
Given the vector a, find the longest run of consecutive numbers that can be evenly divided by the same number d where d > 1. ...

10 days ago

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Remove the polynomials that have positive real elements of their roots.
The characteristic equation for a dynamic system is a polynomial whose roots indicate its behavior. If any of the <http://www.ma...

10 days ago

Solved

Renaming a field in a structure array
MATLAB has a <http://www.mathworks.com/help/techdoc/ref/setfield.html setfield> and a <http://www.mathworks.com/help/techdoc/ref...

10 days ago

Solved

Get the area codes from a list of phone numbers
Given a string of text with phone numbers in it, return a unique'd cell array of strings that are the area codes. s = '508-6...

10 days ago

Solved

It dseon't mettar waht oedrr the lrettes in a wrod are.
An internet meme from 2003 (read more <http://www.snopes.com/language/apocryph/cambridge.asp here>) asserted that readers are re...

10 days ago

Solved

Given a list of US states, remove all the states that start with the letter N. If s1 = 'Alabama Montana Nebraska Vermont Ne...

11 days ago

Solved

Connect Four Win Checker
<http://en.wikipedia.org/wiki/Connect_Four Connect Four> is a game where you try to get four pieces in a row. For this problem, ...

11 days ago

Solved

Calculate the Levenshtein distance between two strings
This problem description is lifted from <http://en.wikipedia.org/wiki/Levenshtein_distance>. The Levenshtein distance betwee...

14 days ago

Solved

Given two strings, find the maximum overlap
Given two strings s1 and s2, create a new string s3 which is as short as possible and contains both strings. If s1 = [1 2...

14 days ago

Solved

Counting in Finnish
Sort a vector of single digit whole numbers alphabetically by their name, in Finnish. See the Wikipedia page for <http://en.wik...

22 days ago

Question

Function browser is empty
In MATLAB command window, one should be able to access Function Browser to quickly see the syntax for a particular function. To ...

5 months ago | 0 answers | 0

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Datenum with a.m. and p.m.
Assuming there is ".m. EST" attached to each "timestamp" at the end. You can follow the steps: Step-1 Replace ".m. EST" to just...

1 year ago | 1

| accepted

Trying to count number of cells between two columns
In the code that you have shared whichDistance is an empty matrix. So when you do raw(whichDistance, :)=[]; raw array doesn't ...

1 year ago | 0

index array to access the value in matrix
Step1 - Convert the subscript to indeces using x & y(Hint: sub2ind) Step2 - Calculate values of IM for calculated indeces Step...

1 year ago | 0

| accepted

Writing a Function Code
Try: function out = timeconv(t) y = datestr(round(t/900)*900/(24*60*60),'HH:MM AM'); end

1 year ago | 0