https://sites.google.com/site/kolukulasivasrinivas/

Professional Interests: Mathematical Computing

Answered

Marker points are not fully visible

plot(x,y,'ok','MarkerSize',12,'MarkerFaceColor','k');hold on plot(x1,y1,'LineWidth',2); hold off a = datenum(x1); datetick('...

Marker points are not fully visible

plot(x,y,'ok','MarkerSize',12,'MarkerFaceColor','k');hold on plot(x1,y1,'LineWidth',2); hold off a = datenum(x1); datetick('...

2 hours ago | 0

Answered

Linear Regression - how to incorporate in figure

Read about plotregression x=[1 2 5 9 4 10 11 2 6] ; y=[5 3 6 8 5 12 14 4 8] ; plotregression(x,y);

Linear Regression - how to incorporate in figure

Read about plotregression x=[1 2 5 9 4 10 11 2 6] ; y=[5 3 6 8 5 12 14 4 8] ; plotregression(x,y);

3 hours ago | 0

Answered

Write Data to Excel

x = rand(3,1) ; y = rand(3,1) ; z = rand(3,1) ; T = table(x,y,z) ; writetable(T,'test.xlsx')

Write Data to Excel

x = rand(3,1) ; y = rand(3,1) ; z = rand(3,1) ; T = table(x,y,z) ; writetable(T,'test.xlsx')

6 hours ago | 0

Answered

How do I put elements from one matrix into separate matrices using a loop?

You can use functions like ismember. You can also use logical indexing. The best would be ismember. Read about the function.

How do I put elements from one matrix into separate matrices using a loop?

You can use functions like ismember. You can also use logical indexing. The best would be ismember. Read about the function.

9 hours ago | 0

Answered

how to divide a 3D figure in matlab in to cubes and getting the cubes's addresses

How about using this function? https://in.mathworks.com/matlabcentral/fileexchange/15161-plotcube You can draw cubes by provid...

how to divide a 3D figure in matlab in to cubes and getting the cubes's addresses

How about using this function? https://in.mathworks.com/matlabcentral/fileexchange/15161-plotcube You can draw cubes by provid...

9 hours ago | 0

Answered

Intersection between lines and traced shape

The best you can use is: https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections?focused=5165138&tab=funct...

Intersection between lines and traced shape

The best you can use is: https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections?focused=5165138&tab=funct...

9 hours ago | 0

Answered

Getting image dimensions into a table

%% Get the dimensions of the image Namelist = cell(length(filelist), 1); N = length(filelist) ; S = zeros(N,3) ; for i = 1...

Getting image dimensions into a table

%% Get the dimensions of the image Namelist = cell(length(filelist), 1); N = length(filelist) ; S = zeros(N,3) ; for i = 1...

9 hours ago | 0

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Answered

Read images in four different folders

This is asked multiple times int he forum and it has ben answered lot of times. Refer this one for example: https://in.mathwor...

Read images in four different folders

This is asked multiple times int he forum and it has ben answered lot of times. Refer this one for example: https://in.mathwor...

9 hours ago | 0

Answered

How to change contour level in different range?

[X,Y,Z] = peaks(100) ; figure hold on contour(X,Y,Z,'LevelList',-6:0.2:4) % levels with difference 0.2 for till 4 contour(...

How to change contour level in different range?

[X,Y,Z] = peaks(100) ; figure hold on contour(X,Y,Z,'LevelList',-6:0.2:4) % levels with difference 0.2 for till 4 contour(...

1 day ago | 1

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Answered

why i get an error ?

Z=uint8(254*((L-mm)/oo))+1; Y = uint8(Y) ; SS=mod((Y+Z),256) Note that same class varibales only can be added. A integer sho...

why i get an error ?

Z=uint8(254*((L-mm)/oo))+1; Y = uint8(Y) ; SS=mod((Y+Z),256) Note that same class varibales only can be added. A integer sho...

1 day ago | 0

Answered

How do I get the area of this problem?

Refer this: https://in.mathworks.com/matlabcentral/fileexchange/33543-monte-carlo-method?focused=5201749&tab=function

How do I get the area of this problem?

Refer this: https://in.mathworks.com/matlabcentral/fileexchange/33543-monte-carlo-method?focused=5201749&tab=function

1 day ago | 1

Answered

How to convert netcdf to tiff

Refer this for the same question: https://in.mathworks.com/matlabcentral/answers/353583-netcdf-into-geotiff-tiff-file-conversion...

How to convert netcdf to tiff

Refer this for the same question: https://in.mathworks.com/matlabcentral/answers/353583-netcdf-into-geotiff-tiff-file-conversion...

1 day ago | 0

Answered

Smooth curves how to

x=[1 2 3]; y=[1.22 3.31 1.91]; xx = min(x):0.1:max(x); yy = spline(x,y,xx); plot(x,y,'r',xx,yy,'b')

Smooth curves how to

x=[1 2 3]; y=[1.22 3.31 1.91]; xx = min(x):0.1:max(x); yy = spline(x,y,xx); plot(x,y,'r',xx,yy,'b')

1 day ago | 0

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Answered

Orthogonal Distance Regression plot and regression equation

Refer this: https://stackoverflow.com/questions/12250422/orthogonal-distance-regression-in-matlab

Orthogonal Distance Regression plot and regression equation

Refer this: https://stackoverflow.com/questions/12250422/orthogonal-distance-regression-in-matlab

1 day ago | 0

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Answered

image processing, k nearest neighbor

This is how you can use knnsearch. a=imread('coins.png'); b=im2bw(a); c=zeros(size(b)); [ptx,pty] = ginput(1); newdata=[pt...

image processing, k nearest neighbor

This is how you can use knnsearch. a=imread('coins.png'); b=im2bw(a); c=zeros(size(b)); [ptx,pty] = ginput(1); newdata=[pt...

4 days ago | 0

Answered

Check for the length of the matrix

A = rand(3) ; B = zeros(5) ; [nx,ny] =size(A); B(1:nx,1:ny) = A ; Also read about padarrays

Check for the length of the matrix

A = rand(3) ; B = zeros(5) ; [nx,ny] =size(A); B(1:nx,1:ny) = A ; Also read about padarrays

4 days ago | 0

Answered

If loop not executed in a function

Use strcmp instead of equating. function[A0,A1,A2,A3,A4,A5]=Trial_types(ship_type,x) if strcmp(ship_type,'Passenger ship')...

If loop not executed in a function

Use strcmp instead of equating. function[A0,A1,A2,A3,A4,A5]=Trial_types(ship_type,x) if strcmp(ship_type,'Passenger ship')...

4 days ago | 2

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Answered

For loop error: Subscript indices must either be real positive integers or logicals

T_o=[0;0;0]; T_d=[0;0;0]; T_l=[0;0;0]; out_n=zeros([],3); tt=0:0.1:10 ; for i = 1:length(tt) t = tt(i) ; T_o = ...

For loop error: Subscript indices must either be real positive integers or logicals

T_o=[0;0;0]; T_d=[0;0;0]; T_l=[0;0;0]; out_n=zeros([],3); tt=0:0.1:10 ; for i = 1:length(tt) t = tt(i) ; T_o = ...

4 days ago | 0

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Answered

for loop, assign variable

You should initiliaze ed before the loop. for i=1:rows for j=1:columns %calc and store sorted euclidean d...

for loop, assign variable

You should initiliaze ed before the loop. for i=1:rows for j=1:columns %calc and store sorted euclidean d...

4 days ago | 1

Answered

write node to cell center

I got the problem..I think you want to do the following. A = xlsread('NODETOSELL.csv') ; % read the file node_vals = A(:...

write node to cell center

I got the problem..I think you want to do the following. A = xlsread('NODETOSELL.csv') ; % read the file node_vals = A(:...

4 days ago | 0

Answered

Finding Lines in a Large Text File with a Specific Text

Read about textscan. This function gives you option of running a loop and reading required chunks (lines) of the file. In these ...

Finding Lines in a Large Text File with a Specific Text

Read about textscan. This function gives you option of running a loop and reading required chunks (lines) of the file. In these ...

4 days ago | 0

Answered

Keep positive real values from a cell inside a matrix

Let A be your cell. Convert cells into matrix using: A = cell2mat(A) ; Pick the real parts of A using: A = real(A) ; Pic...

Keep positive real values from a cell inside a matrix

Let A be your cell. Convert cells into matrix using: A = cell2mat(A) ; Pick the real parts of A using: A = real(A) ; Pic...

5 days ago | 0

Answered

find Nan in cell

Use isempty..not isnan A={[],[],[31],[2,1]}; %first case A1={[],[2],[3],[6]}% second case P=cellfun(@(x) isempty(x),A,'Un...

find Nan in cell

Use isempty..not isnan A={[],[],[31],[2,1]}; %first case A1={[],[2],[3],[6]}% second case P=cellfun(@(x) isempty(x),A,'Un...

5 days ago | 1

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Answered

How do I extract the highest and lowest data from MATLAB figures?

Use max and min.

How do I extract the highest and lowest data from MATLAB figures?

Use max and min.

5 days ago | 0

Answered

How to process .txt files in a folder to be read by readtable?

txtfiles = dir('*.txt') ; N = length(txtfiles) ; data = cell(N,1) ; for i = 1:N data{i} = readtable(txtfiles(i).name, '...

How to process .txt files in a folder to be read by readtable?

txtfiles = dir('*.txt') ; N = length(txtfiles) ; data = cell(N,1) ; for i = 1:N data{i} = readtable(txtfiles(i).name, '...

5 days ago | 0

Answered

Finding Data in a loaded file

Let A be your data and you want to seek b from it. idx = find(abs(A-b)<10^-5)

Finding Data in a loaded file

Let A be your data and you want to seek b from it. idx = find(abs(A-b)<10^-5)

6 days ago | 0

Answered

Checking for multiple values that are the same in a vector

B=[1,2,3,4,4,4,4,5,6,7,8] ; [a,b]=hist(B,unique(B)) ; [b' a']

Checking for multiple values that are the same in a vector

B=[1,2,3,4,4,4,4,5,6,7,8] ; [a,b]=hist(B,unique(B)) ; [b' a']

6 days ago | 0

Answered

Find monthly mean from daily data of same year using find function

REad about datevec. This will give you years, months and days. Using the months and your data you can find mean. Let thedates be...

Find monthly mean from daily data of same year using find function

REad about datevec. This will give you years, months and days. Using the months and your data you can find mean. Let thedates be...

6 days ago | 0

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