How to plot contour map in MATLAB with time on X axis, drop diameter on Y axis with data containing number of drop diameters to show raindrop size distribution?

I want to show raindrop size distribution in MATLAB using contour mapping. My datafile contains number of drops. I want to show variation of drop diamtere with time.How to do that in MATLAB with filled contour?

Answer 1

[KSSV]

Read about scatter.

[Kartik Lanjewar]

Sorry, but I want contour plotting.

[KSSV]

Any pictorial example? Show us your data.

[Kartik Lanjewar]

[KSSV]

What data you have? Have a look on pcolor, contour.

[Kartik Lanjewar]

Please find the attached files herewith.

[Kartik Lanjewar]

can you suggest the programme for contour mapping using this data?

[KSSV]

dia = importdata('Rdrop_dia.txt') ;
Rtime = importdata('Rtime.txt') ;
Rdrop_nos = importdata('Rdrop_nos.txt') ;

% contourf(Rtime,dia,Rdrop_nos) 
pcolor(Rtime,dia,Rdrop_nos) 
shading interp 
colorbar

[Kartik Lanjewar]

Thank you for your reply, but the contour map is not looking like the map in the picture shared by me( white background in the map). Kindly suggest for the same.

[KSSV]

It depends on how your data is. Is the attached plot is for the given data?

[Kartik Lanjewar]

No...it was for reference.

[KSSV]

So that is the plot from the data. Also try contourf; I have commented that line.

[Kartik Lanjewar]

yes sir. I've tried that and applied to different data, but facing same issue(blue background).

[KSSV]

May be you need to discard certain values.

[Kartik Lanjewar]

okay