plotting single column markers

Community matplotlib-users
1

I hope someone on this list can help me here. I am a complete matplotlib and python novice, so please forgive me if it is a rather simple question.

I am trying to plot markers in matplotlib. I have values at x at which they should appear, but that is it. The y value of them should just be an arbitrary value (for example 0).

Here is an example of the data

2.10686
4.21443
5.01784
6.20608
6.32343
6.44145
6.77794
...
..
.

I can load the data with

reflections_1=numpy.loadtxt("list.txt")
phase_1=reflections_1[:,0]

What is the best way of now plotting this (as single vertical marker lines)?
I thought of using the quiver function, but cannot get this to work.

Any help appreciated.

Thanks

Adrian

2

plot(data,zeros_like(data),marker='|',markersize=20,linestyle='None')

···

-----Original Message-----
From: Adrian HILL [mailto:adrian.hill@…291…]

What is the best way of now plotting this (as single vertical marker
lines)?

3

Thanks Greg, that is exactly what I wanted.

Cheers

Adrian

···

On 04/05/2011 20:17, Buchholz, Greg wrote:

-----Original Message-----
From: Adrian HILL [mailto:adrian.hill@…291…]

What is the best way of now plotting this (as single vertical marker
lines)?

plot(data,zeros_like(data),marker='|',markersize=20,linestyle='None')