how to plot specific column from a matrix

20 vues (au cours des 30 derniers jours)
Josh Tsai
Josh Tsai le 12 Jan 2022
Commenté : KSSV le 12 Jan 2022
Hello everyone, I have a 349525 x 4 double matrix, if I try to plot the graph of column 1 vs column 4, what should my command be. I've tried plot(M(:,1),M(:,4)) already and it didn't work out. Any help will be much appreciated. Thank you.

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KSSV
KSSV le 12 Jan 2022
A = rand(100,4) ;
plot(A(:,1),A(:,4)) % plot 1 column w.r.t. 4 column
If this is not working. Show us the full error or tell us how the plot is.
  2 commentaires
Josh Tsai
Josh Tsai le 12 Jan 2022
Hello KSSV, yes, this is working but I don't think this answered my question. I was looking for the method of selecting 2 columns (coulmn 1 and 4) from a matrix and plot it while column 4 is on the x-axis and column 1 is on the y-axis
KSSV
KSSV le 12 Jan 2022
A = rand(100,4) ;
plot(A(:,4),A(:,1))

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