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Joydeb Saha


Last seen: 3 days ago Active since 2020

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Moving Decimal Places to the right
How can I get the number format as 1412701202.018284 for an exponent format data 1.412701202025964e+09. May be with sprintf "%....

4 days ago | 1 answer | 0

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Question


How to make a density map (per square km per year)
I have a .mat file where the 7th (latitude) and 8th (longitudes) columns are the lightning stroke counts. How to make a density ...

11 days ago | 0 answers | 0

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Question


How to make a lightning strokes/ square km / day map
I have WWLLN data in .loc format. I have 92 files, from where I need to select the lats and lons (strokes) for +/-30 location on...

21 days ago | 0 answers | 0

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Question


Read and taking selected lat-longs from few .loc files and plot in geoshow
I have 92 .loc files in the current folder. The volume of all the files is large. I need to read all the files one by one and s...

1 month ago | 0 answers | 0

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How can I change the data in lat lon and time format so that I can make a spatial map
Usually we make spatial plots by : h=pcolor(LON,LAT,Data); in this format. But in the new data, they have XC and YC, the projec...

1 month ago | 1 answer | 0

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Question


Changing the orientation Arctic Projection maps
[LON,LAT] = meshgrid(lon1,lat1); % hold on fs=20; load coastlines figure('Color','w'); axesm('stereo','MapLat...

1 month ago | 0 answers | 0

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Making a geoshow map with many mat files having large number of rows
I have total 92 number of matfiles having more tham 600000 number of rows for each matfiles. Column number 7 and 8 are the latit...

1 month ago | 0 answers | 0

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answers

Question


netcdf file read and write
I have a netcdf file A.nc containing monthly data from 2011 to 2020. Say the main data is for specific humidity. The variables a...

1 month ago | 0 answers | 0

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Question


circular pcolor map (looking down on the north pole)
How can I produce a circular pcolor map (looking down on the north pole) ?

1 month ago | 0 answers | 0

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Question


Increasing number of data points by linear interpolation method
I have attached a mat file. There are 7 datapoints in the matrix. This is a 7x2 matrix. How can I make it may be 70x2 matrix by ...

2 months ago | 3 answers | 0

3

answers

Question


Double y axis plot when two data sets are not starting from the same time
I have two data sets A and B. A = 20x1 and B=11x1. I want to make double y axis plot with these datasets. But the plot should be...

4 months ago | 1 answer | 0

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Question


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...

5 months 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...

6 months ago | 2 answers | 0

2

answers

Question


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...

6 months ago | 1 answer | 0

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answer

Question


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

6 months ago | 1 answer | 0

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Question


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

8 months ago | 1 answer | 0

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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...

8 months ago | 1 answer | 0

1

answer

Question


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

8 months ago | 0 answers | 0

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answers

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...

8 months ago | 0 answers | 0

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Answered
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 ...

8 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...

8 months ago | 3 answers | 0

3

answers

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...

11 months ago | 1 answer | 0

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answer

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...

12 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...

1 year 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))...

1 year ago | 1 answer | 0

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

1 year 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...

1 year ago | 2 answers | 0

2

answers

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....

1 year ago | 2 answers | 0

2

answers

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

1 year 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).

1 year ago | 0 answers | 0

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