# How do I connect points in a scatter plot with a line?

951 visualizaciones (últimos 30 días)
Matt el 15 de Jul. de 2014
Editada: MathWorks Support Team el 27 de Nov. de 2018
Hi
I plot a scatter for multiple points and i want to connect them using line. Below is my code. The plot i get is only scatter, I cant connect them through a line. Any help appreciated!
x=[1,2,3,4,5,6,7,8,9];
y=[1,2,3,4,5,6,7,8,9];
hold all
for i=1:8
scatter(x(i),y(i),'X')
line(x(i),y(i))
end
Thanks
Matt
##### 0 comentariosMostrar -2 comentarios más antiguosOcultar -2 comentarios más antiguos

Iniciar sesión para comentar.

Ben11 el 15 de Jul. de 2014
Editada: MathWorks Support Team el 27 de Nov. de 2018
If you want to plot both markers and a line, you can use the plot function and specify a line style that includes marker symbols and a line style, such as '-x'. For example, this code plots a line with crosses at the data points.
plot(x,y,'-x')
If you are trying to plot only the first eight points, then use this code instead:
plot(x(1:8),y(1:8),'-x')
If you are plotting from a cell array, then use this code instead:
plot(cell2mat(x(1:8)),cell2mat(y(1:8)),'-x')
##### 2 comentariosMostrar NingunoOcultar Ninguno
Matt el 15 de Jul. de 2014
Thanks! It works :)
Ben11 el 15 de Jul. de 2014

Iniciar sesión para comentar.

### Más respuestas (2)

John D'Errico el 15 de Jul. de 2014
You asked this question before! In fact, you asked exactly that question, but for some reason nobody managed to give a good answer.
plot(x(1:8),y(1:8),'b-x')
There is NO need for a loop. The above single line will plot x marks at each point, and connect them with a line, all in blue.
If you prefer to plot the line in blue, and the x marks in red, this will do it:
plot(x(1:8),y(1:8),'b-',x(1:8),y(1:8),'rx')
##### 3 comentariosMostrar 1 comentario más antiguoOcultar 1 comentario más antiguo
H ZETT M el 18 de En. de 2017
Editada: H ZETT M el 18 de En. de 2017
Hey, this question is pretty old,but I want to know something similar. I got scattered points on a 2D surface and I want just to connect those points that are close to each other. Basically I want to say something like "connect the points that are in a range of 10m to each other" Any ideas how to do this ?
John D'Errico el 18 de En. de 2017
@ZETT: This is a TOTALLY different question. Ask it as a question. A separate and new question.

Iniciar sesión para comentar.

Brian B el 15 de Jul. de 2014
Editada: Brian B el 15 de Jul. de 2014
Don't use a for loop:
x=[1,2,3,4,5,6,7,8,9];
y=[1,2,3,4,5,6,7,8,9];
hold on
scatter(x,y,'X')
line(x,y)
or just
plot(x,y,'-o')
##### 1 comentarioMostrar -1 comentarios más antiguosOcultar -1 comentarios más antiguos
John D'Errico el 15 de Jul. de 2014
Both of you have missed that for some reason, he wants to plot the first 8 elements.

Iniciar sesión para comentar.

### Categorías

Más información sobre Scatter Plots en Help Center y File Exchange.

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by