Help plotting some data?

There are 3 sets of data. Each set of data has 5 columns (16 rows 5 columns). Column 1 is Day column 2 is bacteria counts. How would you plot the day vs the bacteria counts for all three sets of data? On one graph

[Ben11]

What is in the last 3 columns for each data set?

[José-Luis]

doc hold
doc plot

Answer 1

[dpb]

... plot the day vs the bacteria counts...

Day vs counts or counts vs days???

Either way, simply either

a) read first, plot b) set

hold on

c) read second, plot; rinse and repeat.

Fix up colors, etc., as desired.

Alternatively, read the three files and save the data

x=zeros(16,3);  % preallocate; I used the known sizes; these
y=x;            % can be determined programmatically of course
d=dir('*.dat');
for i=1:length(d)
  z=textread(d(i).name);
  x(:,i)=z(:,1);   % create x, y arrays
  y(:,i)=z(:,2);
end
plot(x,y)  % plot 'em all...

I presumed the day was independent here; if really want t'other way 'round, reverse x,y