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KALYAN ACHARJYA


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1,361 total contributions since 2017

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Answered
Indexing with two matrices
A=[1 4 20 3 5 15 2 1 24 7 9 42]; B=[3 4 15 7 1 42]; [r1,c1]=size(B); c=ze...

17 hours ago | 0

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Answered
how can i draw a 3-D figure?
x=rand(1,121); y=rand(1,121); z=rand(1,121); plot3(x,y,z); grid on; More 3D plots, Documentation here

18 hours ago | 0

Answered
Why does subplot size change with increasing number of plots
I dont think figures are changing, just scaling the figure window as per the screen size (please check the scaling of plot axes,...

1 day ago | 0

Answered
Plotting multiple matlab figures into a single subplot
Remove figure statement within the loop. clear all; clc; c=zeros(4,1); h=zeros(4,1); for i=1:4 h(i)=subplot(2,2,i); end ...

1 day ago | 0

Answered
Grid search for two data files and average of amplitude
v=200:02:1000; h=4:0.02:12; f=v./(4*h); writetable(table(f'),'f_matlab.txt'); Check the data

2 days ago | 0

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How can i convert set of images from RGB to Lab using matlab?
Read images from folder FAQ here Before apply the code read here Representing color with the Lab color space image_data= % R...

2 days ago | 0

Answered
plotting comlex numbers,use one plot command, and each point should be different color
z =[complex(2,5),complex(1/5,3/5),(2+i)^3,(1+i)*(1-3*i),complex(5,-12),complex(-3,0),complex(0,2),complex(1,2*sqrt(2)),complex(-...

2 days ago | 1

Answered
Extracting features from rice grain image
Steps: As the ROIs are distinct, apply the proper threshold on gray images to segment ROIs Do the image engancement (if requi...

5 days ago | 1

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Answered
Denoising 3D ultrasound
It's purely depends on, what types of noise presence in the images. Though I can't commnet with surety, those filters may work ...

5 days ago | 0

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Answered
Transforming cell from excel file into numeric matrix
Exactly, readmatrix is preffered, if you have latest version. If not you can try the following one T=xlsread('Output_1.xls'); ...

5 days ago | 0

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Answered
IF-statement for matrix/vector
As you mentioned that the matrix having size 146652x1, which means it has 1 column. Prefer logical conditional statement. idx=m...

7 days ago | 0

Answered
Index in position 2 exceeds array bounds (must not exceed 5).
I sense to be here fprintf(1,' %d tbp = %g C.\n',i, u(6+i)); %...................................^ Check? >>whos u

7 days ago | 0

Answered
Why 4.8/1.6 is not equal to 3?
Here "==" is logical equality check, if the Left Hand Side equal to Right Hand side, it gives logical 1 (True), else 0 More ab...

8 days ago | 0

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Answered
create an image with black background from extracted pixel values
%Lets suppose you have image1 as main image image1=ones(150,150); subplot(121),imshow(image1); title('Main'); r=randi(150,[1,...

8 days ago | 0

Answered
Feature orientation in images
The "best method" is purely based on input data and multiple factors, and it is apurely a subjective term. I would suggest to fo...

9 days ago | 0

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Answered
How to make a loop to do a specific operation for multiple variables?
Assuming those results are array, hence used cell array { }. If numeric, please change to array [ ] RefInd={}; ny=cell(1,3);;n...

10 days ago | 0

Answered
How to write horizontally
x=-5:1:5; y=x.^2; disp('desired output:'); x y More x=-5:1:5; y=x.^2; disp('desired outpit'); fprintf('x'); disp(x); ...

10 days ago | 0

Answered
How to display 1D vector with indices into a function
Store those index in some 1 D array and later call the respective index data from ECG data, see the modified code, you may get i...

10 days ago | 0

Answered
How to select different data points in different images in a loop?
Hope I understand the question?? Yes, lets suppose three data points points in image 1. Please stored in a array or matrix (wh...

10 days ago | 0

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How to find the valley areas of the image?
The segmention approach for this image is already answerd, for localizing valley region please see the watershed algorithm. It w...

10 days ago | 0

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How to multiply matrix by using for loop
clc; clear; Qhc=2000000*1000;%J , potrebna energija za grijanje u jednom satu N=200; %broj VK Qg=Qhc/3600; t=3600; %vrijem...

11 days ago | 0

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Answered
matlab code for 3x3 matrix determinant
det(matrix) Here det

11 days ago | 0

Answered
How to scale data and plot?
I want to scale it so that x axis is in [kHz] . Multiply x data with 10^(-3), and calculate the corresponding y data, then pl...

11 days ago | 0

Answered
Opening .m files in EEGLAB
See here the complete tutorial (Step by Step) http://www.indiana.edu/~pcl/busey/temp/eeglabtutorial4.301/readtut/eeglabreadata....

11 days ago | 0

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Answered
Filtering data separated by NaN rows for self-similarity
Is this? Lets suppose data is given as provided) idx=find(isnan(data(:,1))); [r,c]=size(data); for i=1:length(idx)-1 plot(...

11 days ago | 0

Answered
cell2sym...where it is?
May be you are using earlier version of Matlab, cell2sym is Introduced in R2016a

11 days ago | 0

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Answered
How to increase Quiver_tri arrow length
Quiver_tri arrow length When I tried, the arrow length is adjusted with gird number. [x,y] = meshgrid(0:0.5:2,0:0.5:2); u = c...

12 days ago | 0

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Answered
How can i use a loop for various sheet in excel?
Excel_files=dir('C:\Work\steven_work\*.xlsx'); for i=1:length(Excel_files) fName=strcat('C:\Work\steven_work\',Excel_files(i...

13 days ago | 0

Answered
1D vector in ECG
One Main Figure Window (Multiple Plots Window) : Remove the figure statement within the loop, & use proper subplot assignment O...

13 days ago | 0

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