scatterplot with xerr and yerr with matplotlib
matplotlib, plot, python
Solution
It sounds like you want something like this?
import matplotlib.pyplot as plt
x = [124.46, 8.20, 52.55, 4.33]
y = [124.46, 50.2, 78.3, 778.8]
xerr = [54.2, 0.1, 2.41, 1.78]
yerr = [22.55, 0.37, 3.77, 0.14]
descrip = ['Atom 1', 'Atom 2', 'Atom 3', 'Atom 4']
plt.errorbar(x, y, xerr, yerr, capsize=0, ls='none', color='black',
elinewidth=2)
for xpos, ypos, name in zip(x, y, descrip):
plt.annotate(name, (xpos, ypos), xytext=(8, 8), va='bottom',
textcoords='offset points')
plt.show()
`errorbar` works just like `plot`. If you want a "scatter" plot then you need to specify `linestyle='none'` (or equivalently, `ls='none'`). Based on your drawing, you don't want caps on the errorbars, so I've specified `capsize=0`. Similarly, you seem to want fairly thick lines for the errorbars, thus `elinewidth=2`.
If you want a marker in addition to the errorbars, just specify `marker='o'` (or any marker style you'd like) to `errorbar`.
`annotate` is the easiest way to annotate points on a plot. Here, I've specified that the annotation should be placed 8 points above and to the right of each measurement.
Problem
i am looking to visualize the positions of two arrays with each other. My Table looks like this ``` Number Description value_1 value_2 err_1 err_2 1 descript_1 124.46 124.46 22.55 54.2 2 Descript_2 8.20 50.2 0.37 0.1 3 Descript_2 52.55 78.3 3.77 2.41 4 Descript_2 4.33 778.8 0.14 1.78 ``` what i basically want is something like this: So in this plot every point has basically three properties: 1. xerror bar 2. yerror bar 3. description what this point represents. I have a feeling that this can be done elegantly with matplotlib, and while i tried some stuff with errorbars that did not quite give me what i would expect. And i have not yet found out how to place the captions in a plot.