# Joydeb Saha

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Question

Reshaping the first row of a matrix as the first elements a column

I have a 11x3 matrix. How can I make the elements in the first row as the first three elements of the column and so on? the last...

environ un mois ago | 1 answer | 0

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answerQuestion

How can I make 2.5x2.5 grid data to 0.5x0.5 grid data.

I have a data file D.mat. Its 2.5x2.5 grid data. latxlong is 73x144. lant range +-90, long range +-180. How can I make it 0.5x...

environ 2 mois ago | 1 answer | 0

### 1

answerQuestion

Integration and average of the pixel values for an image.

If I have a spatial map, how can I calculate the integration and average of the pixel values for the map? say my file nname is...

2 mois ago | 1 answer | 0

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answerQuestion

large file slow running

latmin=-90; %chooce your location latmax=90; longmin=-180; a=1; longmax=180; data=zeros(90,90); for b=1:length(x(:,1))...

2 mois ago | 1 answer | 0

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answerQuestion

Reducing the size of images by a loop

Here I reduced the size of an image. But I want to reduce the size of all the images of my folder. Images are : abc_20190304_000...

3 mois ago | 2 answers | 0

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answersQuestion

Making a video by selecting png images

How can I make a video by selecting png images from a folder? Also how can I save the video? the files are: abc_20190304_0001....

3 mois ago | 2 answers | 0

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answersQuestion

Use of geoglobe in MATLAB R2017a

how can I use geoglobe in MATLAB R2017a. I want to make a full disc image of a three dimentional data

3 mois ago | 1 answer | 0

### 1

answerQuestion

Full disk imagery on earth globe in matlab

How to plot "full disk" imagery on earth globe in matlab? I have a three dimentional data in the format of (long x lat x time).

3 mois ago | 0 answers | 0

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answersQuestion

how to make a spatial map with two dimensional matrix

I have a matrix SH=721X1440 I want to make a spatial map with that. lat=721x1 , lon=1440x1, time = 1044624. I attached lat matr...

3 mois ago | 1 answer | 0

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answerQuestion

To find Maximum value and minimum value for each group of four rows for a 180*1 matrix

Say I have a 180x1 matrix. I have to find the max and min value of each 12 rows. e.g, max min value of 1-12th row and 13th to 24...

4 mois ago | 2 answers | 0

### 2

answersQuestion

Percentage change in the Y axix for unit change in X axis

If I have a 2D plot, how can I calculate the percentage change in the Y axix for unit change in X axis?

5 mois ago | 1 answer | 0

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answerQuestion

Mean of 1st and 2nd, 3rd and 4th, 5th and 6th elements and so on

I have a 180x1 matrix. I want the mean of 1st and 2nd, 3rd and 4th, 5th and 6th elements like this. The new matrix then have 90 ...

5 mois ago | 1 answer | 0

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answerQuestion

How to apply a bandstop filter after performing FFT

How to apply a bandstop filter after performing FFT on the this data, to remove the spikes ? SC is the data matrix. rows1 =le...

6 mois ago | 0 answers | 0

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answersQuestion

Matrix operation in quiver plots

My matrices are, new_lon1 = 1440X1 lat1 = 721X1 U = 1X 721 X 1440 V = 1X 721 X 1440 I tried the making quiver plot by this...

7 mois ago | 0 answers | 0

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answersQuestion

making of Quiver Plots

My matrices are, new_lon1 = 1440X1 lat1 = 721X1 U = 1X 721 X 1440 V = 1X 721 X 1440 I tried the making quiver plot by this...

7 mois ago | 1 answer | 0

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answerQuestion

Matrix and Averaging problems

say I have a matrix V = 180x1 double. STEP 1 = I need to make 15 matrices, 12x1 column each ( Say Jan to Dec) STEP 2= I need t...

7 mois ago | 1 answer | 0

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answerQuestion

Total number of zeros , ones , twos..etc in a matrix

I have a matrix where in the fourth column there will be numbers of 0 to 23. I need a separate matrix where there will be the to...

12 mois ago | 1 answer | 0

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answerQuestion

How to extract rows based on a particular column values in a matrix?

I have attached a .mat file. It has two columns. In the second column if the values are greater than equal to 1 or if the values...

environ un an ago | 2 answers | 0

### 2

answersQuestion

mean of 6TH, 7TH AND 8TH numbers of every column

I have a 12x41 matrix. I want the mean of 6TH, 7TH AND 8TH numbers of every column. there will be a 41x1 matrix then

environ un an ago | 1 answer | 0

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answerQuestion

how to take the average of 6th 7th and 8th value of a 12x1 matrix and it will continue upto 492x1 matrix

I have a 492x1 matrix. I have to take the average of the 6th 7th and 8th numbers. For better understanding I have 41 years, then...

environ un an ago | 1 answer | 0

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answerQuestion

How to concatenate matrices to calculate mean

I have 40 matrices DJF1979_1980_125 to DJF2019_2020_125. Each matrix is 3x721x1440. I want a mean of all the matrices, that wi...

environ un an ago | 2 answers | 0

### 2

answersQuestion

concatenation of few matrix with a loop

C{1} = [total1979_125_30]; C{2} = [total1980_125_30]; C{3} = [total1981_125_30]; C{4} = [total1982_125_30]; C{5} = [total198...

environ un an ago | 1 answer | 0

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answerQuestion

Averaging Every Element of some matrices

I have 40 matrices of 12x1. How can I take the the each element of every matrix and get a averaged matrix which will be 12x1

environ un an ago | 2 answers | 0

### 2

answersQuestion

Montage Function Problems in MATLAB

im1 = imread('denstrack_01May.png'); im11 = imresize(im1, [544 1048]); figure imshow(im11) im2 = imread('01.05.19.png'...

plus d'un an ago | 2 answers | 0

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answersQuestion

combining four .png images

clear clc im2 = imread('01.05.19.png'); im1= imread('1may.png'); im4=imread('1MayCTT.png'); im3=imread('denstrack_01M...

plus d'un an ago | 1 answer | 0

### 1

answerQuestion

saving png files in power point

How can i save 4 png images in a single power point slide using matlab?

plus d'un an ago | 0 answers | 0

### 0

answersQuestion

PNG file saving in power point presentation

clear clc %removed the clear all, close all, clc, as they are irrelevant here and can only cause problems project_dir = p...

plus d'un an ago | 0 answers | 0

### 0

answersQuestion

Different size matrix data addition

I have different matrix size for different data file. say one data is 846x399 and another is 4208x399. I need to add all the fil...

plus d'un an ago | 1 answer | 0

### 1

answerQuestion

Addition of data from different files using a loop

clear clc [files,pathname]=uigetfile('*.hdf','MultiSelect','on'); cd ../../../../../../../../../.. cd(pathname) fil...

plus d'un an ago | 0 answers | 0