the cyclist

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Researcher and Director of Data Science at PatientsLikeMe.com; MATLAB evangelist.

Professional Interests

Predictive modeling, statistics

36Rank

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1 – 50 of 259 previous next

Duplicate each element of a vector.

Created by Julio

Tags

vectors

Problem Group

Community

2Solutions

21Size

Make a 1 hot vector

Created by @bmtran

Tags

plus15

Problem Group

Community

1Solution

20Size

Multiply 2 numbers

Created by Aurelien Queffurust

Tags

product, multiplication

Problem Group

Community

2Solutions

17Size

The Answer to Life, the Universe, and Everything

Created by Joseph Kirk

Tags

douglas adams

Problem Group

Community

1Solution

10Size

Insert zeros into vector

Created by Selvaraaju Murugesan

Tags

basic matlab

Problem Group

Community

2Solutions

27Size

Replace multiples of 5 with NaN

Created by Khaled Hamed

Tags

nan

Problem Group

Community

2Solutions

18Size

Return 'on' or 'off'

Created by J.G.

Tags

off, true, false, on, string

Problem Group

Community

2Solutions

28Size

Back to basics 26 - Keywords

Created by Alan Chalker

Tags

keywords

Problem Group

Community

1Solution

8Size

How many trades represent all the profit?

Created by Doug Hull

Tags

asee

Problem Group

1Solution

20Size

Make a random, non-repeating vector.

Created by Doug Hull

Tags

ml101

Problem Group

Community

1Solution

10Size

Getting the indices from a vector

Created by Doug Hull

Tags

indexing, ml101

Problem Group

Community

2Solutions

13Size

Back to basics 25 - Valid variable names

Created by Alan Chalker

Tags

variable names

Problem Group

Community

1Solution

16Size

Create a square matrix of multiples

Created by Bruce Raine

Tags

square matrix, muliples, easy

Problem Group

Community

3Solutions

17Size

matrix of natural number

Created by Aritra Chatterjee

Tags

matrices

Problem Group

Community

2Solutions

17Size

Rotate a Matrix

Created by Yudong Zhang

Tags

rotation, function

Problem Group

Community

3Solutions

11Size

Implement simple rotation cypher

Created by Doug Hull

Tags

lookup table, asee

Problem Group

1Solution

74Size

Number of Horns on a unicorn!

Created by Patrick Schuster

Tags

unicorn, fun

Problem Group

Community

1Solution

7Size

Count photos

Created by Amitava Biswas

Tags

combinatorics

Problem Group

Community

1Solution

11Size

Check if number exists in vector

Created by Nichlas

Tags

vectors

Problem Group

Community

1Solution

12Size

Set the array elements whose value is 13 to 0

Created by Aurelien Queffurust

Tags

logical indexing, logical, indexing

Problem Group

Community

1Solution

14Size

Find the largest value in the 3D matrix

Created by Bruce Raine

Tags

3d

Problem Group

Community

1Solution

12Size

Compute a dot product of two vectors x and y

Created by Evgeny

Tags

linear algebra

Problem Group

Community

1Solution

13Size

Multiply a column by a row

Created by Amitava Biswas

Tags

matrix; multiply

Problem Group

Community

2Solutions

11Size

Whether the input is vector?

Created by Sangeeta

Tags

vector

Problem Group

Community

1Solution

10Size

Given a window, how many subsets of a vector sum positive

Created by Doug Hull

Tags

asee

Problem Group

2Solutions

29Size

Get the length of a given vector

Created by Yudong Zhang

Tags

basicic matlab, length, vector

Problem Group

Community

1Solution

10Size

Determine Whether an array is empty

Created by Yudong Zhang

Tags

determine, empty, matrix

Problem Group

Community

2Solutions

10Size

Angle between two vectors

Created by Aurelien Queffurust

Tags

angle

Problem Group

Community

3Solutions

24Size

Convert a vector into a number

Created by Doug Hull

Tags

ml101

Problem Group

Community

1Solution

15Size

Replace May with April

Created by Sunu

Tags

matlab

Problem Group

Community

2Solutions

14Size

Replace Vector Elements

Created by Reza Ahmadzadeh

Tags

replace

Problem Group

Community

2Solutions

14Size

Arrange vector in ascending order

Created by Ismail

Tags

arrange vector in ascending order

Problem Group

Community

1Solution

12Size

Find number of days

Created by Reza Ahmadzadeh

Tags

date

Problem Group

Community

3Solutions

19Size

Rotate a Matrix by 90 degrees

Created by Reza Ahmadzadeh

Tags

matrix

Problem Group

Community

1Solution

12Size

Return the first and last character of a string

Created by @bmtran

Tags

matlab 101, plus15, indexing, strings

Problem Group

Community

1Solution

16Size

Flip the main diagonal of a matrix

Created by Bruce Raine

Tags

diagonal, magic

Problem Group

Community

1Solution

30Size

Scoring for oriented dominoes

Created by Doug Hull

Tags

contest

Problem Group

Tiles Challenge

2Solutions

35Size

Number of 1s in a binary string

Created by Srivardhini

Tags

sum, binary

Problem Group

Community

3Solutions

15Size

sorting

Created by Yvan Lengwiler

Tags

sorting

Problem Group

Community

1Solution

20Size

Is A the inverse of B?

Created by Bruce Raine

Tags

identity, inverse, inverse function

Problem Group

Community

1Solution

20Size

Sum of diagonal of a square matrix

Created by Sunu

Tags

basic matlab

Problem Group

Community

2Solutions

14Size

Back to basics 16 - byte order

Created by Alan Chalker

Tags

byte order

Problem Group

Community

1Solution

12Size

Back to basics 17 - white space

Created by Alan Chalker

Tags

white spaces

Problem Group

Community

1Solution

12Size

Back to basics 20 - singleton dimensions

Created by Alan Chalker

Tags

dimensions

Problem Group

Community

1Solution

12Size

Back to basics 15 - classes

Created by Alan Chalker

Tags

classes

Problem Group

Community

1Solution

12Size

Back to basics 22 - Rotate a matrix

Created by Alan Chalker

Tags

matrices

Problem Group

Community

1Solution

12Size

Back to basics 23 - Triangular matrix

Created by Alan Chalker

Tags

matrices

Problem Group

Community

1Solution

12Size

Back to basics 21 - Matrix replicating

Created by Alan Chalker

Tags

matrices

Problem Group

Community

2Solutions

16Size

commutative?

Created by Amitava Biswas

Tags

function

Problem Group

Community

2Solutions

18Size

Specific Element Count

Created by @bmtran

Tags

plus, occurrences, equality, counting, sum

Problem Group

Community

3Solutions

51Size

1 – 50 of 259 previous next