Matplotlib直方图条宽度 [英] Matplotlib histogram bar width

问题描述

我正在使用 matplotlib 直方图 histt​​ype='bar' 将四个数据集绘制在一起.它自动执行的是相对于数据集的大小更改每个数据集的条形宽度.我希望所有四个数据集的条宽都相等.

I am using matplotlib histogram histtype='bar' to plot four datasets together. What it automatically does is that it changes the width of the bar of each dataset relative to the size of the dataset. I want to have equal bar width for all four datasets.

[n, bins, patches = plt.hist(
    [np.sort(x2), np.sort(x3), np.sort(x4), np.sort(x5)],
    bins=np.logspace(np.log10(8e-8), np.log10(1), 7),
    histtype='bar', 
    weights=[w2,w3,w4,w5],
    label=[
        '$\Delta {{\chi}^2} <40$',
        '$u_0 < 0.045$',
        '${s}_{fitted} >5$',
        'Multi-peaked'
    ]
)][1]

推荐答案

每个集合的垃圾箱实际上具有相同的大小(数值)，但是您的x轴是对数的，因此看起来像 width 是不同的.尝试在线性 x 轴(不是对数)上绘制单个数据集，您将看到条形的宽度相同.

The bins are actually the same size (numeric value) for each set but your x axis is logarithmic so it looks like the width is different. Try to plot a single dataset in a linear x axis (not logarithmic) and you will see that the widths of the bars are the same.

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