Community Profile # Joydeb Saha

Last seen: 6 days ago Active since 2020

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How can I plot or place three or four figures in one figure
I have three figures size 198kb, 208kb and 187kb. How can i make those figures showing in a single panel? say the figure names a...

16 days ago | 1 answer | 0

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Question

how can i use a loop to run the specific code
If there are number of datafiles in the current folder, how can i use a loop to run the specific code? attaching the code. the f...

28 days ago | 2 answers | 0

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How can I give different thresholds to an image
How can I give different thresholds to an image? If 'cot' is the image matrix I have attached how can i give a threshold of zer...

1 month ago | 1 answer | 0

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Calculating mean values of a 3D matrix for every rows
I have a matrix 12x441x1440. 12 is the dimension of time. how can I get 12 average numbers for every month from that matrix

2 months ago | 1 answer | 0

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how can i make a 400x400 matrix to 400x1
how can i make a 400x400 matrix to 400x1? in matlab

3 months ago | 1 answer | 0

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Question

lat= 10848x10848 double and lon= 10848x10848 double. How to make spatial map with this ?
I have two matrix lat and lon. But the problem is lat= 10848x10848 double and lon= 10848x10848 double. How to make spatial map w...

3 months ago | 1 answer | 0

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Question

python variable in matlab
how to load a .npy variable or matrix in matlab R2017a?

3 months ago | 0 answers | 0

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Question

Out of memory problem in MATLAB 2017
In general the .mat files are of 1 or 2 kb like that. When I converted the Lat and Lon python ( numpy) files to .mat files. It...

3 months ago | 0 answers | 0

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how to calculate the Geodetic Coordinates (Lat and Lon) of the XY scan Position valaues for the GOES satelllite series in matlab
Hi stephen, I cannot send the datset here as I cannot insert the dataset here. If you can send me your email id, I can send you ...

3 months ago | 0

Question

how to calculate the Geodetic Coordinates (Lat and Lon) of the XY scan Position valaues for the GOES satelllite series in matlab
how to calculate the Geodetic Coordinates (Lat and Lon) of the XY scan Position valaues for the GOES satelllite series in matlab...

3 months ago | 3 answers | 0

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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...

7 months ago | 1 answer | 0

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Question

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...

7 months ago | 1 answer | 0

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Question

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...

8 months ago | 1 answer | 0

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Question

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))...

8 months ago | 1 answer | 0

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Reducing the size of images by a loop
well the problem is solved

8 months ago | 0

Question

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...

8 months ago | 2 answers | 0

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Question

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....

8 months ago | 2 answers | 0

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Question

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

8 months ago | 1 answer | 0

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Question

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).

8 months ago | 0 answers | 0

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Question

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...

9 months ago | 1 answer | 0

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Question

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...

10 months ago | 2 answers | 0

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Question

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?

10 months ago | 1 answer | 0

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Question

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 ...

10 months ago | 1 answer | 0

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Question

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...

11 months ago | 0 answers | 0

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Question

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...

1 year ago | 0 answers | 0

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Question

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...

1 year ago | 1 answer | 0

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Question

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...

1 year ago | 1 answer | 0

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Question

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...

1 year ago | 1 answer | 0

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Question

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...

1 year ago | 2 answers | 0