Divide data in parts and plot them on a vertical line

Hello!

I have a matrix that stores my probability, number of data analyzed and time (time and #samples are related, every single data is sampled at 0.033 seconds, so 3.3 for 100); it looks like:

0.873615503511876	100	3.30000000000000
0.902974727374816	100	3.30000000000000
0.900676294700403	100	3.30000000000000
0.936103354207504	200	6.60000000000000
0.897578193607001	200	6.60000000000000
0.944744655111605	200	6.60000000000000
0.972746082496182	300	9.90000000000000
0.940582356717829	300	9.90000000000000
0.977908283040241	300	9.90000000000000
0.962956328635856	400	13.2000000000000
0.968370651998859	400	13.2000000000000
0.980665507251175	400	13.2000000000000

I want to have a 2D plot with probability values on y axis and time on x axis, where all datas recorded at the same time are allineated vertically. In this way I should get a plot at the end where on x I have 3.3, 6.6, 9.9, 13.2 and for every one of these 3 point on y axis.

Can someone help me do that? Thanks!

Answer 1

[Scott MacKenzie]

From your description, this seems to work:

M = [
    0.873615503511876	100	 3.3;
    0.902974727374816	100	 3.3;
    0.900676294700403	100	 3.3;
    0.936103354207504	200	 6.6;
    0.897578193607001	200	 6.6;
    0.944744655111605	200	 6.6;
    0.972746082496182	300	 9.9;
    0.940582356717829	300	 9.9;
    0.977908283040241	300	 9.9;
    0.962956328635856	400	13.2;
    0.968370651998859	400	13.2;
    0.980665507251175	400	13.2];
scatter(M(:,3), M(:,1), 'filled');
xlabel('Time');
ylabel('Probability');

[Jialin HE]

I figured that out after and I did the same, thank you anyway!