How to generate animated gif?

How to generate TEC map as follows?

igsg2270.12i.TECgif

Animated CODE TEC Maps

I would like to do it similarly but my file includes annual data. Therefore, I extracted daily data from annual data such as attached text file.

File structure:

• 1st column: Year
• 2nd column: Day of the year
• 3rd column: Hour
• 4st column: Latitude
• 5st column: Longitude
• 6st column: TEC Values

Answer 1

[KSSV]

Read this to know how to write plots to a gif.

https://in.mathworks.com/matlabcentral/answers/94495-how-can-i-create-animated-gif-images-in-matlab

data = importdata('data.txt') ;
y = data(:,1) ;
d = data(:,2) ;
h = data(:,3) ;
lat = data(:,4) ;
lon = data(:,5) ;
t = data(:,6) ;
%
[c,ia,ib] = unique(h) ;
for i = 1:length(c)
    X = reshape(lon(ib==i),length(unique(lon)),length(unique(lat))) ;
    Y = reshape(lat(ib==1),length(unique(lon)),length(unique(lat))) ;
    Z = reshape(t(ib==1),length(unique(lon)),length(unique(lat))) ;
    pcolor(X,Y,Z)
    shading interp 
    title(sprintf('Hour = %s',num2str(c(i))))
    drawnow
end

[Dogan Deniz Karadeniz]

How to change title in a loop such for date and time? Your code gives hours but it doesn't show which year, day of the year (or month and day), and hour.

I think it is just for daily. I tried to use your code for double day data but result is pointless. I am so confused.

Error using reshape
To RESHAPE the number of elements must not change.

[KSSV]

Attach your whole original data with the code you tried.