mean(df$value) # 创建一个热图,并使用 scale_fill_gradient2 设置颜色渐变 ggplot(df, aes(x = x, y = y, fill = value)) + geom_tile() + scale_fill_gradient2(low = "blue", mid = "white", high = "red", midpoint = midpoint) + labs(title = "Heatmap with Dynamic Midpoint...
您可以尝试scale_fill_gradientn和values参数。从?scale_fill_gradientn开始：如果颜色不应该沿着梯度均匀...
该算利用点云体素关系生成具有空间一致性的过分割，而不是在三维点云映射或者投影到了二维空间中进行处理...
你可以通过创建一个新的颜色标度来标识你想涂黑色的盒子。这可以用ggnewscale来完成。
mean(df$value) # 创建一个热图,并使用 scale_fill_gradient2 设置颜色渐变 ggplot(df, aes(x = x, y = y, fill = value)) + geom_tile() + scale_fill_gradient2(low = "blue", mid = "white", high = "red", midpoint = midpoint) + labs(title = "Heatmap with Dynamic Midpoint") ...
mean(df$value) # 创建一个热图,并使用 scale_fill_gradient2 设置颜色渐变 ggplot(df, aes(x = x, y = y, fill = value)) + geom_tile() + scale_fill_gradient2(low = "blue", mid = "white", high = "red", midpoint = midpoint) + labs(title = "Heatmap with Dynamic Midpoint...