Number of data available for PM

There are some stations with zero data availability.

% How many stations are available?
load('numpoints.mat')
clc
imagesc(Data(:,1:3));figure(gcf);
colorbar
map2 = colormap; map2( 1, : ) = 1; colormap(map2)
cmap = colormap; % cmap nicely puts colormap into 3 col data
xlabel('Year: 2006 2007 2008')
ylabel('Station Number')
title('Number of Data Available')
xlim([0.5 3.5])
% set(gca,'xtick',[])
% set(gca,'xticklabel',[])
set(gca,'XLim',[.5 3.5]);% This automatically sets the
                            % XLimMode to manual.
% Set XTick so that only the integer values that
% range from 0.5 - 12.5 are used.
set(gca,'XTick',[1:3])  % This automatically sets
years = ['2006'; '2007'; '2008'];
set(gca,'XTickLabel',years)

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