KALYAN ACHARJYA

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1,444 total contributions since 2017

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Answered
Variable horizontal alignment of cell array's strings in annotation
cases = 18; percent = 0.3; dim = [0.1 0.5 0.1 0.1]; arrcell = {['there are ',num2str(cases),' cases'],['- - - -'],['the perce...

3 days ago | 0

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Make image from csv files
Example : lat = importdata('mariana_latitude.csv') imshow(lat,[]);

4 days ago | 0

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How can I calculate average of two values using a for loop
Why you are dealing with cell array, you cal do same with array, By the way ave = PTS./G is not the average PTS = {539 1220 996...

4 days ago | 0

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Answered
How to divide 2D histogram into four quadrants
You can manualy insert the line as required data=randi(100,[10,10]); hist(data); grid on; hold on; x_data=1:100; y_data=r...

4 days ago | 1

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Is there a logical NAND operation in MATLAB like the logical AND operation '&'?
nand_result=~(A & B)

4 days ago | 0

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Answered
Help!! I'm trying to plot a function where the output changes with different values of the array. my for loop works, I can see the values changing. I just have trouble with plotting it. I get a graph with nothing in it! any help is appreciated!
gamma=0.268; dt=0.05; T=10; t=0:dt:T for tt=1:length(t) x=gamma*sqrt(((1-cos(0.7255*t(tt))).^2+(sin(0.7255*t(tt))).^2)/((...

4 days ago | 1

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Answered
How to generate triangular heatmap using matlab?
data=tril(randi(100,[15,15])); imagesc(data); colormap summer colorbar Plese DO modification and addition(labels) as per req...

4 days ago | 1

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find a value and their related values in other columns
Let's example mat=[-3 0.01 0 0.04 +3 0.06 6 0.08 9 0.09]; data_cl=mat(find(ma...

4 days ago | 0

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Answered
how to create a phase plane in matlab
Quiver plot https://www.mathworks.com/help/matlab/ref/quiver.html http://www.thphys.nuim.ie/CompPhysics/matlab/help/techdoc/r...

4 days ago | 0

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How to solve error " Undefined function or variable "
Save the function (Gauss_loglik.m) in the same directory (No clc or clear in function file)

4 days ago | 1

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Segmentation and vertical length measurements
#NonTested, but providing the steps for the same- Convert the image to binary Apply Hit and Miss Transfrom to trace the outer...

6 days ago | 0

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Change column name based on another vector
See the table and set accordingly https://www.mathworks.com/help/matlab/ref/table.html

6 days ago | 0

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How to convert string "26/7" into a double variable?
X = str2double(str) converts the text in str to double precision values. Text is "22/7" This is not a number right "/" . What d...

6 days ago | 0

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Is it possible Matlab shows the grid on the surface of the plot?
Change the faceAlpha (within 0 and 1) value, see, it may heps you (This is transperancy) surf(x,t,abs(r1),'FaceAlpha',0.5); Or...

6 days ago | 0

Answered
How to use a loop to increase polynomial order and store results
One way hints: Start with T(1) to T(10), Matlab doesnot allow zero indexing T(1)=t^1 for i=2:9 T(i)=[T(i-1),t^i]; end

7 days ago | 0

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non zero elements in matrix
[r,c]=find(mat~=0)

7 days ago | 0

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Answered
How can i change the positions of numbers in a matrix
sort the matrix, you will get all rows at initails of rows numbers sort(matrix)

7 days ago | 0

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How to transform double to unit8
im2uint8

7 days ago | 0

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Answered
Help with filling in a few pixels
See imerode with proper str element then trace. Later you have to take care this morpho operation to get the actual shape/sizes

8 days ago | 0

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Plot Data into a Histogramm
"My question: Is my histogram ok?" Ans: OK, as per your data "Because i thought that in a histogram the most frequent data mus...

8 days ago | 0

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Array indices must be positive integers or logical values.
keff2 = k2 .*(am2*(k1+2*k2)-2*am1*(k2-k1))./(am2*(k1+2*k2)-am1*(k1-k2)); More: p0=8.854e-12; % Membrane thickness d, cell ra...

8 days ago | 0

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Answered
Multiple graphs not showing
All values produce the same result, hence opvelaped. When I multiply k by rand function it shows the plots.

8 days ago | 1

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How can I assign correct value for variable img_heq
img_heq=histeq(img,[0,255])

8 days ago | 0

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Smith Diagramm in matlab/octave
axis off; Or Also you can set the axes properties , like set(...) or axes('Color','none','XColor','none');

26 days ago | 0

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how to remove Outermost semicircle on the grayscale image?
mask=bwareafilt(~imbinarize(grayImage,0.8),1); grayImage(~mask)=255; imshow(grayImage);

28 days ago | 0

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Answered
How to show all figure in lopping to only only one figure?
"How to show all figure in lopping to only only one figure?" #Example figure, for i=1:10 data=rand(1,20); subplot(...

1 month ago | 0

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how to random initialize svd function in matlab??
data_test=magic(3); [U,S,V]=svd(data_test) Result U = -0.5774 0.7071 0.4082 -0.5774 0.0000 -0.8165 -0....

1 month ago | 0

Answered
Can anyone help me to solve my last line matlab error? When I use haar transfrom, it works perfect, but when I use db2, the last figure could not come, please help.
It's the issue with concanatation (Dimention Mismatch) , Here I have choosen one test image to check. Lets simply to get the iss...

1 month ago | 0

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Answered
How to replace a column in a text file with time and plot a graph from it?
Please note: It should be column vector data = load('test1.txt'); data(:, 1) =[0:0.0001:60000]';

1 month ago | 0

Answered
How can I plot this discrete recursive function?
function pop=discrete_logistic(time) r = 1; K = 1000; N0 = 0.1; if time==0 pop=N0; else pop=discrete_logistic(tim...

1 month ago | 1

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