i am looking to visualize the positions of two arrays with each other. My Table looks like this
我想把两个数组的位置形象化。我的桌子是这样的。
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: 
我想要的是这样的:
So in this plot every point has basically three properties: 1. xerror bar 2. yerror bar 3. description what this point represents.
在这个图中，每个点都有三个性质:1。xerror酒吧2。yerror酒吧3。描述这个点代表什么。
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.
我有一种感觉，这可以用matplotlib来优雅地完成，而当我尝试一些带有errorbars的东西时，并没有给出我所期望的东西。而且我还没有发现如何把字幕放在一个情节里。
2 个解决方案
#1
8
It sounds like you want something like this?
听起来你想要这样的东西?
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.
errorbar就像plot一样。如果您想要一个“散点”图，那么您需要指定linestyle='none'(或相等地，ls='none')。根据您的绘图，您不需要在errorbars上设置上限，所以我指定了capsize=0。类似地，对于errorbars，您似乎需要相当粗的行，因此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.
如果您想在errorbars之外添加标记，只需指定标记='o'(或您想要的任何标记样式)到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.
注释是在一个情节上注释点的最简单方法。在这里，我已经指定注释应该放在上面的8个点和每个度量的右边。
#2
0
Won't
不会
import matplotlib.pyplot as plt
x = [100, 200, 300, 400]
y = [100, 200, 300, 400]
xerr = [100, 100, 100, 100]
yerr = [20, 20, 20, 20]
plt.errorbar(x, y, xerr, yerr, ls='none')
plt.show()
mean the error bars are on the wrong axes?
意思是误差条在错误的轴上?
pyplot.errorbar:
matplotlib.pyplot.errorbar(x, y, yerr=None, xerr=None, fmt=u'', ecolor=None, elinewidth=None, capsize=3, barsabove=False, lolims=False, uplims=False, xlolims=False, xuplims=False, errorevery=1, capthick=None, hold=None, **kwargs)
Note that yerr precedes xerr, so
请注意，yerr在xerr之前。
plt.errorbar(x, y, xerr, yerr, ls='none')
makes your error bars be backwards - yerr=xerr, xerr=yerr. A good time to use named args:
使你的误差条是向后的- yerr=xerr, xerr=yerr。这是一个叫args的好时机:
plt.errorbar(x, y, xerr=xerr, yerr=yerr, ls='none')
#1
8
It sounds like you want something like this?
听起来你想要这样的东西?
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.
errorbar就像plot一样。如果您想要一个“散点”图，那么您需要指定linestyle='none'(或相等地，ls='none')。根据您的绘图，您不需要在errorbars上设置上限，所以我指定了capsize=0。类似地，对于errorbars，您似乎需要相当粗的行，因此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.
如果您想在errorbars之外添加标记，只需指定标记='o'(或您想要的任何标记样式)到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.
注释是在一个情节上注释点的最简单方法。在这里，我已经指定注释应该放在上面的8个点和每个度量的右边。
#2
0
Won't
不会
import matplotlib.pyplot as plt
x = [100, 200, 300, 400]
y = [100, 200, 300, 400]
xerr = [100, 100, 100, 100]
yerr = [20, 20, 20, 20]
plt.errorbar(x, y, xerr, yerr, ls='none')
plt.show()
mean the error bars are on the wrong axes?
意思是误差条在错误的轴上?
pyplot.errorbar:
matplotlib.pyplot.errorbar(x, y, yerr=None, xerr=None, fmt=u'', ecolor=None, elinewidth=None, capsize=3, barsabove=False, lolims=False, uplims=False, xlolims=False, xuplims=False, errorevery=1, capthick=None, hold=None, **kwargs)
Note that yerr precedes xerr, so
请注意，yerr在xerr之前。
plt.errorbar(x, y, xerr, yerr, ls='none')
makes your error bars be backwards - yerr=xerr, xerr=yerr. A good time to use named args:
使你的误差条是向后的- yerr=xerr, xerr=yerr。这是一个叫args的好时机:
plt.errorbar(x, y, xerr=xerr, yerr=yerr, ls='none')