Community Profile

# Renwen Lin

### Shanghai University of Finance and Economics

30 total contributions since 2012

Professional Interests: History

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Solved

Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

1 month ago

Solved

Longest run of consecutive numbers
Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 1 ...

2 months 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...

2 months ago

Solved

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

3 months 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...

4 months 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.

4 months 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...

4 months ago

Solved

Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<https://i.imgu...

4 months ago

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

4 months 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 ...

4 months ago

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

4 months ago

Solved

Return area of square
Side of square=input=a Area=output=b

4 months ago

Solved

Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

4 months ago

Submitted

tableAgent: A chain-method table class in Matlab
@tableAgent: A class for applying chain method on table in Matlab, and providing with many useful methods functions

Is there a faster way than str2double() to convert from a string array into a matrix containing doubles?
Try this！ Fast String to Double Conversion

2 years ago | 1

Submitted

Create Matlab Snippet for Your Own Toolbox
For VS Code user, create a matlab-snippet for your ower toolbox.

Submitted

bygroupRetimeMonthlyData
For every city or group, this function make sure that each year have 12 months with Matlab

Solved

Joining Ranges
You are given a n-by-2 matrix. Each row represents a numeric range, e.g. x = [0 5; 10 3; 20 15; 16 19; 25 25] contains...

2 years 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 ...

2 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:...

2 years ago

Submitted

mergecellkey: Merge cell by key
mergecellkey: Merge cell by key

Submitted

cell2vars: Transform cell to vars
cell2vars: Transform cell's columns' to variables in workplace

Submitted

vars2cell
% PURPOSE: Convert selected variables in matlab workspace to the cell's columns

Submitted

strcatrobust: Combine num, char and cell to one cellstr
% B = strcatrobust(1, {'a' 'b'},[2 , 3], 't') % B is {'1a2t' '1b3t'};

Submitted

idrepetition: Find the index for the repetition terms in a cell
Find the index for the repetition terms in a cell % [ids a] = idrepetition(A) % linrenwen@gmail.co

Submitted

isrepetition: Determine TRUE or FALSE for repetition terms in a cell
Determine TRUE or FALSE for repetition terms in a cell % tfs = isrepetition(A)

Submitted

isnumericcell
isnumericcell

Submitted

xlsx2csv: Transform sheets in xlsx file to csv files
% Transform all sheets in xlsx file to csv files % 把xlsx文件中的表批量转换为csv文件

Submitted

xlsx2matfile: Transform all sheets in xlsx file to mat files
% xlsx2matfile(pathxlsx) % xlsx2matfile(pathxlsx, pathmat)