Plotting a logarithmic colorbar for a variable plotted using lat/long

Hi

I have been trying to plot my data points using their lat/long coordinates. The positioning is correct, and they seem to be plotting so that the values are scaled correctly.

The only problem is that I cannot figure out how to plot the colorbar logarithmically. Most of the point lie between 0 and 1, but a few are higher which is why I would like to have is begin at 0, and go up to 10, so the differences in the values can be displayed better.

Me and a a friend have been trying to crack this one since yesterday to no avail. Does anyone know what I am doing wrong? How can I fix this?

(On a smaller not, how do I chance the colour scheme. I like jet, due to the convenience for displaying a range of values).

I have included my current code, and the dataset that I am using. (Three columns, Lat, long, and f0 value at the site - This third variable is the one I am trying to plot a logarithmic colour bar for).

Thank you, Joey

Code:

%My current attempts at trying to plot the f0 and assign a logarithmic
%scale bar to the f0 values

clear %Clears workspace 
clf % Clears figures
clc % Clears command window
close % Clears curret figures

load Plotting_f0.txt;
f0 = Plotting_f0;

latf0 = f0(:,1);
longf0 = f0(:,2);
f0vals = f0(:,3);

f0_10=10.^f0vals;
f0_log=log(f0vals);

figure (1)
worldmap ([53.53 53.6], [-3.11 -2.9]);
c=[0.1 1/3 10 10/3 10];
markerSize = 100;
scatterm(latf0, longf0, markerSize, f0_log,'.');

col=colorbar('Ticks',(round(min(f0_log)-1) : 1 : round(max(f0_log)+1)));
title(col,'Log f0');
title('f0 values across the mapping area')

Answer 1

[KSSV]

Read about caxis

[Joseph Rainford]

I have been trying to use the caxis logarithmically and it is not working