Community Profile # Joydeb Saha

Last seen: 3 months ago Active since 2020

#### Statistics

• #### Content Feed

View by

Question

Bar plot for two matrices together
I have two matrices ww and si. I want to make a bar plot with this two. For each year (x-axis) I need to show 2 bars – one ww an...

4 months ago | 1 answer | 0

### 1

Question

Percentage increase and decrease from two matrices
Attaching two matrices A1 and B1. I want to calculate the percentage increase and decrease deltaSignal = (B1 - A1); percentag...

5 months ago | 1 answer | 0

### 1

Question

Convert pixels in lat-lon to kilometer square
How can I change the pixels (in lat longs) of some monthly .nc files to kilometere square for every month. Spatial resolution of...

7 months ago | 0 answers | 0

### 0

Question

Convert pixels to kilometer square
I have some monthly .nc files (one is attached). I need to find the pixels which are above threshold three (3) for all the month...

7 months ago | 0 answers | 0

### 0

Question

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 "%....

8 months ago | 1 answer | 0

### 1

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 ...

8 months ago | 0 answers | 0

### 0

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...

9 months ago | 0 answers | 0

### 0

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...

9 months ago | 0 answers | 0

### 0

Question

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...

9 months ago | 1 answer | 0

### 1

Question

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

9 months ago | 1 answer | 0

### 1

Question

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...

9 months ago | 0 answers | 0

### 0

Question

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...

9 months ago | 0 answers | 0

### 0

Question

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

9 months ago | 0 answers | 0

### 0

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 ...

10 months ago | 3 answers | 0

### 3

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...

12 months ago | 1 answer | 0

### 1

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...

1 year ago | 1 answer | 0

### 1

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...

1 year ago | 2 answers | 0

### 2

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...

1 year ago | 1 answer | 0

### 1

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

1 year ago | 1 answer | 0

### 1

Question

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

1 year ago | 1 answer | 0

### 1

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...

1 year ago | 1 answer | 0

### 1

Question

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

1 year ago | 0 answers | 0

### 0

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...

1 year ago | 0 answers | 0

### 0

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 ...

1 year 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...

1 year ago | 3 answers | 0

### 3

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...

1 year ago | 1 answer | 0

### 1

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...

1 year ago | 1 answer | 0

### 1

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

### 1

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