prasanth s

Last seen: environ un an il y a | Actif depuis 2018

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Bouncing Balls Simulation
This code simulates the free falling and bouncing motion of balls with different bouncing ratio

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Droplet size calculation of a spray image
using 'kmeans' for segmentation and 'regionprops' to get properties of particles, image=imread('particle.jpg'); jqimage=rgb2...

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Comparing an occurance of colors between 2 images
convert the images to HSV colorspace and use the hue component to clustering. match the colors using the obtained cluster cente...

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Can anyone explain me how to read ecg .dat, .hea, .atr files ?
check ecg-kit https://physionet.org/content/ecgkit/1.0/common/

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Find the maximum number of decimal places in a set of numbers
Given a vector or matrix of values, calculate the maximum number of decimal places within the input. Trailing zeros do not count...

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Can someone help me with the square wave plot here?
T=12; N=3; D=25; A=3; t= 0:0.001:1; x = A*((1+square(2*pi*N*t,D))/2); t2=t*T*N; plot(t2, x);

plus d'un an il y a | 1

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How to export data used to make MATLAB figure?
fig=openfig('SophiesFigure_nanodomains.fig'); data1=fig.Parent.Children(2).CurrentAxes.Children.YData %histogram xdata=ww.Cu...

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loops and conditional statements in Matlab for data filtration
A=[1 3 4 2 3 -9 4 -7 8 6 7 -1 2 3 4 6 19 7 12 3 -4 -5 6 7 8 2 3 5 2 3 4 ]'; A(A<0)=0; A(A>10)=0;

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How to extract value from a matrix with given indices
code example is ind = sub2ind(size(matrix),index,1:5); new=matrix(ind)

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Make roundn function
Make roundn function using round. x=0.55555 y=function(x,1) y=1 y=function(x,2) y=0.6 y=function(x,3) ...

plus d'un an il y a

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Rounding off numbers to n decimals
Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...

plus d'un an il y a

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Matlab Basics - Rounding III
Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

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Matlab Basics - Rounding II
Write a script to round a variable x to 3 decimal places: e.g. x = 2.3456 --> y = 2.346

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Check that number is whole number
Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. http://en.wikipedia.org/wiki/Whole_numb...

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MATLAB Basic: rounding IV
Do rounding towards plus infinity. Example: -8.8, answer -8 +8.1 answer 9 +8.50 answer 9

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MATLAB Basic: rounding III
Do rounding towards minus infinity. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 8

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MATLAB Basic: rounding II
Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9

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MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

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implay a video and draw n points with ginput
try: h=implay(video) [x,y] = getpts(h.Visual.Axes)

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How to match array data and excel data?
if all data type is in array type, the matching row positions can be obtained using rows=all(B==I,2) contents from 'A' obtain...

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how to convert hours and minutes from decimals to datetime objects
First convert it into string type with the format "yyyy-MM-dd hh-mm" using hours_decimal=15.9 myDate=string("2008-05-07 ")+str...

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Anyway to Pre-allocate Memory for Struct
s=struct; s(1).Name=0 s(2).Name=0

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how to find the length of the foot automatically from the image
refer https://in.mathworks.com/help/images/image-segmentation.html https://in.mathworks.com/help/images/ref/regionprops.html...

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Select specific area of a DICOM file
remove noise using median filter IM=medfilt2(P); find gradient [Gmag,Gdir] = imgradient(IM); then apply circle detection or ...

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piratepal colors for plots
New colormap for plots (from piratepal function in R)

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GAN examples for Neural Network/Deep Learning Toolbox of R2018b or earlier?
you can find some in github. https://github.com/jonzhaocn/GAN-Base-on-Matlab

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Cyclic cellular automaton simple
cyclic cellular automaton implementation as from the website https://codepen.io/jlfwong/pen/YWZoyk

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How Can I create struct field in a loop?
'struct' command creates new structure. you have to create new structure at the starting of loop. add new fields to the structur...

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Specific change points in large dataset
Here is one of the methods using 'diff' function. use following code to get all the difference values and plot those values to...

presque 5 ans il y a | 0

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read multiple csv files from different subfolders
Use 'dir' function to get the directory and file list of any folder. e.g D=dir('Raw data'); output 'D' is an structure array c...

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