Legend colors do not match plot colors.

I have an Excel file (attached) that contains the latitude and longitude, starting and ending, for 198 tornadoes that occured between 2008 and 2018. I have a program (below) that plots each set of coordinates and colors it according to year. However, the legend colors do not match the plot colors. I have checked several of the questions posted here, but none seem to deal with for loops and if statements. Any help would be greatly appreciated! An if anyone can provide guidance on adding a scale ruler to this project, I would be greatful.

c01 = [0.2422 0.1504 0.6603];
c02 = [0.2803 0.2782 0.9221];
c03 = [0.2440 0.4358 0.9988];
c04 = [0.1540 0.5902 0.9218];
c05 = [0.0297 0.7082 0.8163];
c06 = [0.1938 0.7758 0.6251];
c07 = [0.5044 0.7993 0.3480];
c08 = [0.8634 0.7406 0.1596];
c09 = [0.9892 0.8136 0.1885];
c10 = [0.9769 0.9839 0.0805];
c11 = [0.2791 0.2625 0.9064];

data = xlsread('Tornado Data - 4th Clean No Duplicate Entries.xlsm');
for x = 1:length(data)
	if data(x,2) == 2008
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c01,'Marker','*')
        hold on;
	elseif data(x,2) == 2009
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c02,'Marker','*')
		hold on;
	elseif data(x,2) == 2010
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c03,'Marker','*')
		hold on;
	elseif data(x,2) == 2011
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c04,'Marker','*')
		hold on;
	elseif data(x,2) == 2012
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c05,'Marker','*')
		hold on;
	elseif data(x,2) == 2013
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c06,'Marker','*')
		hold on;
	elseif data(x,2) == 2014
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c07,'Marker','*')
		hold on;
	elseif data(x,2) == 2015
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c08,'Marker','*')
		hold on;
	elseif data(x,2) == 2016
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c09,'Marker','*')
		hold on;
	elseif data(x,2) == 2017
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c10,'Marker','*')
		hold on;
	else 
		geoplot([data(x,8) data(x,10)],[data(x,9) data(x,11)],...
    			'LineWidth',0.5,'Color',c11,'Marker','*')
		hold on;
	end
end
lgd = legend({'2008','2009','2010','2011','2012','2013','2014','2015','2016','2017','2018'},'Location','eastoutside');
title(lgd,'Year')
geobasemap('colorterrain')
title('Tornado Strikes 2008 - 2018')

[Jason Brown]

I found a solution here: https://www.mathworks.com/matlabcentral/answers/133927-how-do-i-control-the-legend-contents-when-the-plot-functions-are-within-a-for-loop

[Kevin Phung]

are the dates not in order?

Answer 1

[Kevin Phung]

You can also shorten your code:

c01 = [0.2422 0.1504 0.6603];
c02 = [0.2803 0.2782 0.9221];
c03 = [0.2440 0.4358 0.9988];
c04 = [0.1540 0.5902 0.9218];
c05 = [0.0297 0.7082 0.8163];
c06 = [0.1938 0.7758 0.6251];
c07 = [0.5044 0.7993 0.3480];
c08 = [0.8634 0.7406 0.1596];
c09 = [0.9892 0.8136 0.1885];
c10 = [0.9769 0.9839 0.0805];
c11 = [0.2791 0.2625 0.9064];
color = [c01;c02;c03;c04;c05;c06;c07;c08;c09;c10;c11];
data = xlsread('Tornado Data - 4th Clean No Duplicate Entries.xlsm');

dates = data(:,2);
[sorted_dates order]=sort(dates)
data=data(order,:) % rearrages your rows to be in order;
for i = 1:size(data,1) % for each row
    geoplot([data(i,8 data(i,10],[data(i,9) data(i,11)]),...
        'LineWidth',0.5,'Color',color(i),'Marker','*');
    hold on;
end

lgd = legend({'2008','2009','2010','2011','2012','2013','2014','2015','2016','2017','2018'},'Location','eastoutside');
title(lgd,'Year')
geobasemap('colorterrain')
title('Tornado Strikes 2008 - 2018')

[Jason Brown]

Thank you!! Obviously, I am new to MATLAB and coding in general. I appreciate you taking the time to shorten the code.

[Kevin Phung]

you're welcome :)