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How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for.

22 dagen ago

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How can I change the title of variables ?
Output=yhat; Unemployment=URhat; Consumption=chat; wage=what; You can always also use: clear vars yhat URhat chat what if ...

25 dagen ago | 0

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The Goldbach Conjecture, Part 2
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

25 dagen ago

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Sums with Excluded Digits
Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9. no...

25 dagen ago

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overly convoluted elseif condition
function y=gain(x) for jj=1:4 p(jj)=1-jj/128; end if x<=4 y=p(x); else y=1; end end I have assum...

25 dagen ago | 0

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Can I run the same Simulink model in different Matlab sessions at the same time? Or would they get mixed up?
I can't specifically answer for Simulink because I've never used it but standard Matlab scripts would be fine with this. I imagi...

25 dagen ago | 0

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I have an array for y-values and one for x-values, the x-values don't stat from 0, How to plot this?
Assuming that you want these x values to be the ones displayed on the x-axis then it's as simple as: plot(x,y)

25 dagen ago | 0

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Making my function run for multiple input values
You could call the function inside a ‘for’ loop. That would enable you to feed in the different input values. For example: ...

25 dagen ago | 1

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Count how many numbers are above -1 in matrix
To find the locations of your values you can use idx = find(x>-1); And to get the values you can use val = x(idx);

25 dagen ago | 0

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Encode Roman Numerals
Create a function taking a non-negative integer as its parameter and returning a string containing the Roman Numeral representat...

26 dagen ago

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Duplicates
Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...

26 dagen ago

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The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

26 dagen ago

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Counting Sequence
Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...

27 dagen ago

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How can i generate 3 random points within a 2x2m grid?
I think you were on the right lines but you need to subtract one from your x and y: x=rand(1,3)*2-1; y=rand(1,3)*2-1; That'll...

27 dagen ago | 0

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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...

27 dagen ago

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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...

27 dagen ago

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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...

27 dagen ago

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Pattern matching
Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...

27 dagen ago

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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...

27 dagen ago

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What is the next step in Conway's Life?
Given a matrix A that represents the state of <http://en.wikipedia.org/wiki/Conway's_Game_of_Life Conway's game of Life> at one ...

27 dagen ago

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Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...

27 dagen ago

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Find state names that end with the letter A
Given a list of US states, remove all the states that end with the letter A. Example: Input s1 = 'Alabama Montana Nebras...

28 dagen ago

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Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

28 dagen ago

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Collapse contour plots on a single plot
If you just want them all on a single plot then just do: contour(x1,y1,z1) hold on contour(x2,y2,z2) and so on... If you wa...

29 dagen ago | 0

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Unable to predict data well enough
I am far from an expert in this area but I'd guess that you are struggling to get a good preciction because you don't have enoug...

29 dagen ago | 1

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Problem in drawing curves after solving ode equations
I think your issue comes from the y(:,2)-N_0 part of your r_R expression. This is asking to take a number away from a number...

29 dagen ago | 0

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

ongeveer een maand ago

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Kaprekar Steps
6174 is the <http://en.wikipedia.org/wiki/6174_%28number%29 Kaprekar constant>. All natural numbers less than 10,000 (except som...

ongeveer een maand ago

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

ongeveer een maand ago

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Find the peak 3n+1 sequence value
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

ongeveer een maand ago

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