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Plot points without connect it

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Ali Kareem
Ali Kareem 2015-10-29
编辑： Hannes Morgenroth 2020-10-15
Hi
I have matrix A(20,100) and I want to plot first column with respect to second column but I do not want to connect the points together. I mean I just want to put these point on the graph I used
plot(A(:,1),A(:,2))
but this command connect points together
How I can do that?
Regards

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采纳的回答

Walter Roberson
Walter Roberson 2015-10-30
scatter(A(:,1),A(:,2))
  3 个评论
显示 1更早的评论
Walter Roberson
Walter Roberson 2015-10-30
scatter() creates a single graphics handle. You can go ahead and legend() passing in multiple legend entries. For example,
plot(A(:,1), fitted_values);
hold on
scatter(A(:,1), A(:,2));
legend({'Fitted', 'Raw Data'})
Note: if you want different legends for different points you will need to use multiple scatter() calls.

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更多回答（2 个）

Hazem
Hazem 2017-12-5
plot(A(:,1),A(:,2), 'o')
or whatever marker you want to use
Daniel Malo Osorio
Daniel Malo Osorio 2020-4-29
Follow-up question
How do I make it possible to plot with lines conecting my dots with the plot() function?
I have tried using the 'r.-' marker, but it ONLY plots the dots on the figure.
assuming x and y are my data vectors
plot(x,y,".-r")
  1 个评论
Hannes Morgenroth
Hannes Morgenroth 2020-10-15
编辑：Hannes Morgenroth 2020-10-15
I always use hold and plot on top without a marker.
Example:
plot(x,y,".-r")
hold all;
plot(x,y)

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