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ANKUR KUMAR


Last seen: 18 days ago

NASA IMPACT

273 total contributions since 2017

Researching with NASA IMPACT |
MATLAB for fun | Python for research |

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Answered
Plotting multiple box plots on same graph with same size vector?
As you have not provided the exact data, I am generating just the random data. col=@(x)reshape(x,numel(x),1); boxplot2=@(C,var...

2 months ago | 0

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Answered
how can i select random 2*2 matrice of random number?
A=rand(randi(10,1,1),randi(10,1,1))

3 months ago | 0

Answered
error using sum what can I change to fix it
mean(displacement(isnumeric(displacement)))

3 months ago | 0

Answered
How would I find the Eigen values and plot the Eigen vector onto my scatter plot
In order to find the eigen values, you need to have a matrix. You can plot eigen values of two matrix on a scatter plot. A=rand...

3 months ago | 0

Answered
How can I read in comma separated data from csv where some cells contain multiple numeric values that are also comma separated?
"there are 6 cells containing data in MouseX, and each contains 7 comma separated values. So I'd want a 6 x 7 numeric array.": T...

3 months ago | 0

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Answered
identity matrix nth order
n=20; eye(n) % identity matrix of order 20 eye(randi(50,1,1)) % identity matrix of a random order generated by randi

3 months ago | 0

Answered
How to compare 2 Boolean Stairs graph
clc clear A = randi([0 1], 1,10); B = randi([0 1], 1,10); data={A,B,A==B}; for kk=1:3 subplot(3,1,kk) stairs(data{k...

3 months ago | 1

Answered
how to write into excel columnwise
for k=1:numoffiles filename=filesinfolder(kkk).name; fid=fopen(filename); %open the file tline = fgetl(fid); ...

3 months ago | 0

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Submitted


ncreadtime
This function helps user to read the time variable in netcdf file in a specific matlab readable format

3 months ago | 1 download |

Answered
Problem with *txt File Format conversion using Matlab
I have used a sample file just like yours (attached). Hope it helps. clc clear formatSpec = '%14s%5s%5s%5s%5s%5s%5s%5s%5s%5s%...

3 months ago | 0

Answered
write a code to sort string
str=input('Enter string:','s'); strsplit(str,',') On which basis you wish to sort strings? Is it alphabatically, or based on t...

3 months ago | 0

Answered
Combine 2 datasets and include the duplicates
clc clear postcodes=randi(20,50,1); areas=randi(10,50,5); area_unique=unique(areas); for ii=1:length(area_unique) ...

3 months ago | 0

Answered
How to plot many images in a loop
for i=1:5 imwrite(randi(255,250,205)/255,sprintf('Image_%d.png',i)) end

3 months ago | 0

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Answered
How to store data in a for loop
If you wish to save into cell, then you can use: for i=1:100 trainin = x(:,tr.trainInd); trainTarg1= t(:,tr.trainInd...

3 months ago | 0

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Answered
Remove legend for specific data
for i=1:n1 plot_lin(i)=plot(f{n1-i+1},Sx_dB{n1-i+1},'DisplayName',['Node ',num2str(n1-i+1)]) xlabel('Frequency (Hz)');...

3 months ago | 0

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Answered
Running a code on multiple input files and get results
clc clear F=dir('BWSN_flus*inp') for kk=1:length(F) filename=F(kk).name % DO YOUR CALCULATIONS outputfilename=...

3 months ago | 0

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Answered
How to create a loop that runs through the rows of a table?
clc clear A=randi(20,25,5); %generating random data T = array2table(A); equation= @(x) x*5 + log(x) % creating an equati...

3 months ago | 0

Answered
Error: This statement is incomplete.
You need to provide sufficient arguments while calling the function. knn_func(2,4,8,1)

3 months ago | 0

Answered
Summing up two graphs with different starting point
Method 1: Using boolean clc clear YY=rand(151,2); XX=[[50:5:800]' [175:5:925]'] data=[XX(:,1) YY(:,1) XX(:,2) YY(:,2)] p...

3 months ago | 0

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Answered
Getting the piecewise polynomial function of a 3D plot
You can use interp2 to calculate values programmatically. clc clear [X,Y] = meshgrid(-5:1:5); Z = Y.*sin(X) - 5*X.*cos(2*Y);...

3 months ago | 0

Answered
replacing rows with values from another matrix
Since you have not attached any speciific data, I am generating random values and indices to change. clc clear original_mat=r...

3 months ago | 0

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Answered
Matlab Output Format!
You cannot format the output, but you can use disp to print in that way: a=1; disp('a=1') disp(sprintf('a=%d',a)) You can us...

3 months ago | 0

Answered
Parse txt file that is organized with different sections from top to bottom?
Attached is the text file. clc clear fileID = fopen('sample_text.txt','r'); dataArray = textscan(fileID, '%s%[^\n\r]', 'Deli...

3 months ago | 0

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Answered
Compare text to a column value and write corresponding row to new file
You can find the indices of matching values in matrix and cell. matrix=randi(10,1,100); cell_existing_variable=num2cell(randi(...

3 months ago | 0

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Answered
Plot color is different to the color being shown on the legend
This is an example of plot using different colors. Hope this helps. clc clear x=linspace(0,2*pi,100); xdata={sin(x),cos(x)...

3 months ago | 0

Answered
Display strings and variable - cell array
Access the contents of cells by indexing with curly braces, {}. food= { 'Rice','Quinoa','Tortilla','Lentils','Broccoli' }'; ...

3 months ago | 0

Answered
Problem setting axis label dimensions
figure1=figure('Color','White','Position',[1,41,1000,600],'Renderer', 'Painters') size_labels=24; legend_label=13; ticks_labe...

3 months ago | 0

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Answered
figure 4 Y axis with 1 x axis
You can use this function from the file exchange. clc clear t=linspace(0,pi,100); sinplot=sin(t); cosplot=cos(t); tanplot...

3 months ago | 0

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Answered
How to modify vector length ??
You can use interp1 to do that. data1_per_second=randi(25,1,604800); data2_per_minute=randi(25,1,10080); data2_per_second=int...

3 months ago | 1

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Answered
Storing elements to a matrix
3D data can be converted to 2D using reshape. You just need to reshape your matrix based on your requirements. A1=reshape(M,3,[...

3 months ago | 0

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