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John


Toronto Metropolitan University

Last seen: Today |  Active since 2013

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Programming Languages:
C++, C, MATLAB

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Question


Managing custom classes, mat-files, and namespaces
Say I have a (simple) custom class, defined with a classdef. Let's say it's defined in my_class.m I then generate a bunch of ob...

4 months ago | 2 answers | 0

2

answers

Question


Argument validation for class methods
Is there a best practice for validating (or not validating) the 'self' arguments in class method definitions? Consider: clas...

5 months ago | 1 answer | 0

1

answer

Question


Using bagOfFeatures with RosBag data (storage efficiency)?
We're working on an application to do feature recognition and SLAM using the bagOfFeatures objects. I was wondering whether ther...

10 months ago | 1 answer | 0

1

answer

Question


Debugging mex-files. Visual Studio breakpoints not working.
For the longest time, I have been able to debug mex-functions using Visual Studio. In the past it often required a little dance ...

1 year ago | 1 answer | 0

1

answer

Question


pcshow permanently changes figure window?
This is a minor issue but I'm not sure it's intended behaviour. When using pcshow to display a pointcloud, the figure window swi...

2 years ago | 2 answers | 0

2

answers

Question


Serial vs. Serialport questions
I had a few questions about differences between the legacy serial objects and the newer serialport implementation. Any help woul...

3 years ago | 0 answers | 4

0

answers

Question


Inconsistent behaviour in fprintf output (scripts and LiveScripts)?
The output from fprintf seems to be inconsistent when called from within a livescript. The interpreter seems to be adding extra ...

3 years ago | 2 answers | 0

2

answers

Question


Unit testing with externally configurable parameters.
I am exploring Matlab's unit testing framework and I'd like to use it with a project that involves communicating with an externa...

4 years ago | 1 answer | 1

1

answer

Solved


Find the biggest empty box
You are given a matrix that contains only ones and zeros. Think of the ones as columns in an otherwise empty floor plan. You wan...

4 years ago

Solved


The End of the World
given a date -- represent it in the Maya long count system. <https://en.wikipedia.org/wiki/Maya_calendar> <https://maya.nm...

4 years ago

Solved


Lost days
Given two dates in a particular format, calculate the difference between them.

4 years ago

Solved


Leap Year
According to Gregorian Calender(which is in use now, in many countries),decide whether a given year is a leap year or not. Give...

4 years ago

Solved


leap year
find the number of leap years within the given time interval

4 years ago

Solved


Friday or not
I love Friday. Please tell me whether the day is Friday. Dateformat is 'yyyy-mm-dd' or 'dd-mmm-yyyy' or 'mm/dd/yyyy'. Exa...

4 years ago

Solved


Datetime basics
Generate the datetime scalar representing the current date

4 years ago

Solved


Calendar Matrix
Return a calendar matrix for the given values of month and year. Assume that Sunday is the first day of the week. The resulting ...

4 years ago

Solved


Elapsed Time
Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

4 years ago

Solved


Find the day for a date
Today's day and date will be given to you. By utilising that you need to find the day of the old date. (Date will be in DD/MM/YY...

4 years ago

Solved


Friday the 13th
According to superstition, lots of unpleasant stuff happens on Friday the 13th, so you might like to find the next occurence of ...

4 years ago

Solved


Day counter function
Write a function called _day_counter_ that returns the number of Mondays that fell on the first day of the month in a given year...

4 years ago

Solved


Count the days
Count the occurrence of a particular day (e.g. Monday) in a given year.

4 years ago

Solved


How long until the weekend?
Write a function a that takes a date vector as an input and returns the number of hours until the weekend begins. The beginning...

4 years ago

Solved


Days until next NewYear ball drop
Given a date string in the form 'yyyy-mm-dd' or 'yyyy-mm-dd hh:mm:ss', calculate the number of *days* until the dropping of the ...

4 years ago

Solved


Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

4 years ago

Solved


Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

4 years ago

Solved


Create a vector
Create a vector from 0 to n by intervals of 2.

4 years ago

Solved


Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

4 years ago

Solved


Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

4 years ago

Solved


Find max
Find the maximum value of a given vector or matrix.

4 years ago

Solved


Get the length of a given vector
Given a vector x, the output y should equal the length of x.

4 years ago

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