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ANKUR KUMAR


Purdue University

214 total contributions since 2017

Visiting Scholar at Purdue University, USA

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Answered
How to create nc file having lat, long, time, and 2D matrix
I hope this helps. [data]=xlsread('test.csv'); lat=data(2,2:end); lon=data(1,2:end); vardata=data(3:end,2:end); vardata(:,s...

5 months ago | 0

Answered
Extract data by shapefile
You can use maskregion function, which mask out the data as per your shapefile. Example you can refer to for your convenience ...

5 months ago | 0

Submitted


maskregion
maskregion mask out the data in the nc file as per the shape file provided as the fourth argument

5 months ago | 6 downloads |

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Submitted


cropregion
cropregion crops the data in the nc file as per the bounding % box provided as the fourth argument

5 months ago | 2 downloads |

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Submitted


ncdispread( varargin )
Display and load all the variables of nc file

5 months ago | 1 download |

Submitted


nccreatewrite(varargin)
Create a .nc file

5 months ago | 2 downloads |

Answered
How to save the results of NetCDF as .nc file?
You can use nccreatewrite function to create a nc file having all the required variables. Example: lon=(65:0.5:95)'; lat=(3:0....

5 months ago | 0

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Answered
Saving data to .txt
Use dlmwrite to write into a ASCII file. A=magic(5) dlmwrite('sample.txt',A)

7 months ago | 0

Answered
determining the value of an x corresponding to specifec y from the graph
Use polyfit to fit a linear line along all data points. It gives you a linear equation in terms of x and y. Just insert the valu...

7 months ago | 0

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Answered
How to draw this 2 dimension figure (antenna feature) in Matlab?
I have just plotted your data simply. Check this out. figure('Units', 'Normalized', 'OuterPosition', [0, 0.04, 0.32, 0.96]);...

7 months ago | 1

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Answered
How to sum two probability density functions?
"sum two of these pdfs and also substract both"? Are you pretty sure to add the pdfs? My suggestion is to first add data and ...

7 months ago | 0

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Answered
Converting a 2d vector to a 4d vector
Let's take a random data A A=randi(10,30,2); Use permute to change into 4D B=permute(A,[3,4,2,1]); Now, B(:,:,2,24) and...

7 months ago | 0

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Answered
How do i filter out certain values in a cell matrix using conditions for strings ?
You can use _contains_ to find the required letter. _contains_ gives true if the part of search string contains in the main stri...

12 months ago | 1

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Answered
The size of X must match the size of Z or the number of columns of Z.
There are few mistakes I want to highlight. You have used, contour(lat,lon,z............. It should be contour(lon...

12 months ago | 0

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Answered
How do I efficiently find the mean and covariance of a cell containing matrices with different rows?
Use concatenate to mix up all cells into one matrix. cat(2,C{:}); %you can use this only if number of rows must be same in ...

12 months ago | 1

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Answered
How to present OBJ file (read as a mesh file) in a contour plot?
An example of creating a mesh is here, [X,Y] = meshgrid(-5:.2:5); R = sqrt(X.^2 + Y.^2); Z = sin(R)./R; mesh(X,Y,Z...

12 months ago | 1

Answered
Placing multiple rectangles layout
figure rectangle('Position',[1 1 2 4],'Curvature',0) rectangle('Position',[5 2 4 3],'Curvature',0) rectangle('Positio...

12 months ago | 1

Answered
Shapefile distorted on World Map
"I'm not sure if it is an issue with my shapefiles or with how I'm projecting". Its only because of projection, the continen...

12 months ago | 1

Answered
Remove Data Outside Range
AA=temp(temp(:,1)>=4 & temp(:,1)<=20,:); There is no need to remove. Directly store the numbers which you need. [xx,yy...

12 months ago | 1

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Answered
interp and interp3 give different size arrays
x0 = 1:100; y0 = 1:90; z0 = 1:100; data1=randi(10,90,100,100); %defining data over coarser resolution dimen...

12 months ago | 2

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Answered
Animation using plot inside for loop
clc clear h=figure for n = 1:10 x_origin = 0; y_origin = 0; x_bob = 0.75*sin(n); y_bob = ...

12 months ago | 1

Answered
Creating a report file in txt format and merging it with created text file
Please refer to these problems. <https://in.mathworks.com/matlabcentral/answers/32377-appending-a-file> <https://in.mathwo...

12 months ago | 1

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Answered
Counting occurrences of each column in a matrix
Since you have not given any sample data, I am taking some random data. A=randi(50,50,50); A(A<=25)=0.4; A(A>25)=0.6;...

12 months ago | 1

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Answered
Reading very heavy .txt files and writing into .xlsx
A=randi(10,50,50); %a random matrix to store in excel file xlswrite('sample.xlsx',A,'sheet1','A1') You can use 'sheet1' ...

12 months ago | 1

Solved


Test if a Number is a Palindrome without using any String Operations
*Description* Given an integer _X_, determine if it is a palindrome number. That is, _X_ is equal to the _X_ with the digits ...

12 months ago

Solved


Project Euler: Problem 3, Largest prime factor
The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number being input, input might be ui...

12 months ago

Answered
Height and width of an image
Try this, A=imread('testing.jpg'); AA=rgb2gray(A); len=max(arrayfun(@(x) length(find(AA(:,x)~=255)),1:800)) bred=m...

12 months ago | 1

| accepted

Answered
How to Write Output Figure with Table inside to Excel
"I have an image output with a table on my code" You can directly write this table in excel using xlswrite. A=randi(10,5...

12 months ago | 1

Answered
Logarithmic color scale in 2d histogram
Use ruler.scale to set log axis in colorbar. contourf(randi(1000,25,25)) cx= colorbar(); cx.Ruler.Scale = 'log'; c...

12 months ago | 1

Answered
how to load dat file without header?
Since you have not attached any sample file, I am giving you an example with a attached file. A=importdata('sample.txt'); ...

12 months ago | 1

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