组合图表时更改线条颜色

import matplotlib.pyplot as plt
import numpy as np

# 示例数据
x = np.linspace(0, 10, 100)
y1 = np.sin(x)
y2 = np.cos(x)

fig, ax1 = plt.subplots()

# 绘制柱状图
ax1.bar(x, y1, color='b', alpha=0.6, label='Sine')

# 创建第二个y轴
ax2 = ax1.twinx()

# 绘制折线图并更改颜色
ax2.plot(x, y2, color='r', label='Cosine')

# 添加图例
fig.legend(loc='upper right', bbox_to_anchor=(0.85,0.85))

plt.show()

library(ggplot2)

# 示例数据
data <- data.frame(
  x = seq(0, 10, length.out = 100),
  y1 = sin(seq(0, 10, length.out = 100)),
  y2 = cos(seq(0, 10, length.out = 100))
)

# 创建组合图表
ggplot(data, aes(x = x)) +
  geom_bar(aes(y = y1), stat = "identity", fill = "blue", alpha = 0.6) +
  geom_line(aes(y = y2), color = "red") +
  theme_minimal()