how to make my data appear in more accurate way ?

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 ?

Answer 1

[Image Analyst]

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]);

[aliaa madbouly]

i tried it did not work.

well you can tell me if i assumed

h is my matrix from on column

h= [2 5 6 8 3 4 2 3 5 6 1000 5 6 8 2 35 1002 1020 5 6 8 1050 ]

the most important data that i want to analysis is the data have a lower value so i want to make filter it to eliminate the higher value data, what should i do ???

[Matt J]

i tried it did not work.

You haven't shown what you tried, so we can't trust that it made sense. It should be as simple as replacing plot() with semilogy().

[Image Analyst]

See my edit above.

[aliaa madbouly]

i tried it , it did work out.

thanks a lot