Matplotlib：当旋转 xticks 出现标签之间不均匀的间隙时

Question

这很奇怪。旋转 -90º 时，所有标签均等距显示并位于其位置：

feat_names = ["totalUniqueCustomerPhoneNumberLocal_f",

                "userIdentitty_f",

                "EMAIL_WEEKS_1_f",

                "length_f",

                "totalValidations_f",

                "amount_per_purchase_k",

                "amount_f"]

X1 = np.array([0.18790969, 0.18208303, 0.15003641, 0.11143482, 0.07428987,

       0.06846322, 0.06773489])

plt.figure()

plt.title("Feature importances")

plt.bar(range(X1.shape[0]), X1,color="r", align="center")

plt.xticks(range(X1.shape[0]), feat_names, rotation = -90)

plt.xlim([-1, X1.shape[0]])

plt.show()

但是，我需要它们旋转 -45º，这就是发生的情况：

feat_names = ["totalUniqueCustomerPhoneNumberLocal_f",

                "userIdentitty_f",

                "EMAIL_WEEKS_1_f",

                "length_f",

                "totalValidations_f",

                "amount_per_purchase_k",

                "amount_f"]

X1 = np.array([0.18790969, 0.18208303, 0.15003641, 0.11143482, 0.07428987,

       0.06846322, 0.06773489])

plt.figure()

plt.title("Feature importances")

plt.bar(range(X1.shape[0]), X1,color="r", align="center")

plt.xticks(range(X1.shape[0]), feat_names, rotation = -45)

plt.xlim([-1, X1.shape[0]])

plt.show()

关于如何使标签在旋转 -45º 时开始与条形中心对齐的任何想法？

Answer 1

水平对齐通过horizontalalignment或其别名完成ha，plt.xticks(..., rotation = -45, ha="left")