Solved

Project Euler: Problem 3, Largest prime factor
The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number being input, input might be ui...

8 maanden ago

Solved

Solve a System of Linear Equations
Example: If a system of linear equations in x₁ and x₂ is: 2x₁ + x₂ = 2 x₁ - 4 x₂ = 3 Then the coefficient matrix (A) is: 2 ...

8 maanden ago

Solved

Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....

8 maanden 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...

8 maanden ago

Solved

Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

8 maanden ago

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Rotate Matrix @180 degree
Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...

8 maanden ago

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Converts numbers into characters
Converts numbers into characters

8 maanden ago

Solved

Find the max element of the array
Find the max element of the array

8 maanden ago

Solved

Square root
Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.

8 maanden ago

Solved

Calculate the average value of the elements in the array
Calculate the average value of the elements in the array

8 maanden ago

Solved

to the 2 all elements
to the 2 all elements

8 maanden ago

Solved

the average value of the elements
Calculate the average value of the elements in the array

8 maanden ago

Solved

Double all elements in the array
Duplicate all elements in the array

8 maanden ago

Solved

calculate the length of matrix
input 1 array, calculate the length

8 maanden ago

Solved

Draw a '0' in a one matrix!

8 maanden 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...

8 maanden ago

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Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

8 maanden ago

Solved

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

8 maanden ago

Solved

Convert from Fahrenheit to Celsius
Given an input vector F containing temperature values in Fahrenheit, return an output vector C that contains the values in Celsi...

8 maanden ago

Solved

Calculate Amount of Cake Frosting
Given two input variables r and h, which stand for the radius and height of a cake, calculate the surface area of the cake you n...

8 maanden ago

Solved

Find the Oldest Person in a Room
Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

8 maanden ago

Answered
Preserving More Decimal Places When Importing Excel Files with readtable in MATLAB
All decimal places are retained for me ... % Change the format format long % Read the file r = readtable("Lab.xlsx"); % H...

10 maanden ago | 0

Answered
How to get MPE (Mean Percentage Error) with plsregress
The documentation doesn't seem to indicate any way to change the metric that is optimized. (This is unsurprising to me.) I can ...

10 maanden ago | 0

| accepted

Answered
Why is bootci giving different interval than prctile?
Because your prctile calculation should be ci = prctile(bootstat, [(alpha/2)*100,(1-(alpha/2))*100]);

10 maanden ago | 1

Answered
Tiling stacks of boxplots. Each stack contains 5 boxplots
Would subplot(2,5,1) ... subplot(2,5,10) do what you want? Also, I would highly recommend using tiledlayout over subplot. It ta...

11 maanden ago | 0

Answered
how to apply PCA over 6000x82 data
Take a look at this answer of mine which is effectively a tutorial on the MATLAB pca function.

11 maanden ago | 1

| accepted

Answered
Why is pagemtimes slower than just coding up the matrix multiplication?Especially on GPU.
It seems to me that the two functions are not calculating the same thing, based on the size of their respective outputs: rng ...

12 maanden ago | 1

Answered
SVM Fitcsvm() thresholds vs ROC curve thresholds
fitcsvm() fits the best possible SVM to the data. That function itself does not make the predictions. The resulting model objec...

ongeveer een jaar ago | 0

Answered
a function slows down my profiler: I would like to speed it up
It won't be a big speedup, but I would expect idx=find(Ntradess(id:-1:1,x)<=a1,1,'first'); to be consistently faster than idx...

ongeveer een jaar ago | 0

Answered
Two lines of plot title with number and date time
Since R2020b, there is a subtitle function. Here is how I would have written your code, incorporating that and some other change...

ongeveer een jaar ago | 0