how to make my data appear in more accurate way ?

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aliaa madbouly 2014-9-15

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评论： aliaa madbouly 2014-9-16

my data appear like this after i plot it, i know that mean there are a big deference between the data but i want to see the low data so should i make filter and how i do it ?

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采纳的回答

Image Analyst 2014-9-15

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编辑：Image Analyst 2014-9-16

在 MATLAB Online 中打开

You can take the log of the data. There is even a function that will do it for you and plot it, semilogy():

fontSize = 22;
h= [2 5 6 8 3 4 2 3 5 6 1000 5 6 8 2 35 1002 1020 5 6 8 1050 ]
logh = log(h);
subplot(1, 2, 1);
plot(logh, 'b*-', 'LineWidth', 3, 'MarkerSize', 15);
xlabel('index', 'FontSize', fontSize);
ylabel('log(h)', 'FontSize', fontSize);
grid on;
subplot(1, 2, 2);
semilogy(h, 'b*-', 'LineWidth', 3, 'MarkerSize', 15)
xlabel('index', 'FontSize', fontSize);
ylabel('h', 'FontSize', fontSize);
grid on;
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);