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AndresVar


Last seen: 10 jours il y a |  Actif depuis 2020

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Programming Languages:
Python, C, MATLAB
Spoken Languages:
English, Spanish

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A résolu


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

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

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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 ...

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

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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 ...

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

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

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

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Inner product of two vectors
Find the inner product of two vectors.

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Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

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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...

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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 ...

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Réponse apportée
Backtrack iteration for loop
i think matlab for loop doesn't allow changing the iterator, you can use while loop instead.

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how to know 'y' values of points when we only know 'x' values?
yes a perpendicular line has a negative inverse slope so if red lines has slope m1=(dy/dx)_red, then the black line has slope...

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How to keep Matlab from messing up the formating in my excel file?
You can writetable and then fix the column width with an actxserver fullFilename = fullfile(pwd,'mysheet.xlsx'); % or whatever ...

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Only abnormally large outlier values are removed, not small ones
your data has zeros that make the mean closer to the small peak. you should ignore the zeros, maybe you can throw them away OR ...

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How to integrate the area below the peak when I dont have function of the peak?
Use conditional indexing to define the limits of extent for the peak. clear load("AR_data.mat") % remove nan values (why is...

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How to properly color a surface in two different colours using surf function?
How about just 1 surface but you tweak the colormap x = linspace(-0.5, 0.5, 21); [X, Y] = meshgrid(x, x); Z = -2 * (cos(2*pi*...

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Importing table from text file and matching header to column
I tried the import tool: Import data from file - MATLAB (mathworks.com) The code it generated for your data did not look as pre...

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A rounding problem that falls under ceil and round
How about x=[0 20 50 100 101 900 901 1234]; % test numbers y = ceil(x/100)*100

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translating each image column a distance according to the fitted curve
You can try circshift to shift the column vectors. But the result is not so good (i think), for example the length of the object...

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Can someone help me to remove small region area with regionprops?
try bwareaopen: Remove small objects from binary image - MATLAB bwareaopen (mathworks.com) There is an example in the documenta...

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Performing the transform on the below logic
Make a grid, evaluate the function and use fft2 to get the spatial spectrum. Here is an example, note function might be differe...

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Fitting multiple data sets to single curve in least square sense
x1,x2,x3 are column vectors that you combined into a matrix, so then y was evaluated to a matrix also. nlinfit expects vectors ...

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Vectorizing for loop for faster processing
You defined bin edges so you can try discretize: Group data into bins or categories - MATLAB discretize (mathworks.com) idx=1:1...

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concatenate structures inside structures
since each frame has different sized structure array maybe you can use a cell for each frame clear; % example positions for ...

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overlap ylabel with values axis
many ways to modify the label position: modify position property, if in latex add \quad, etc the easy way is to control the hor...

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Create a patch which includes all the histogram profiles
If you can use uniform bin edges for all series then it can be simplified Here it is plotting white over the another color. You...

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How to save each row as image in MATLAB
Edit: use rescale the entire dataset instead of each row. Edit: note in the example I put padding on the data to shape it into ...

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Finding data on specific point from large set data
Import data (e.g. right click file -> Import data... -> generate code) Use scattered interpolant: Interpolating Scattered Data...

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