我正在尝试使用ggplot2（您看到下面的代码）创建一个热图现在我要更改两件事：
- 我绘制 pValues（希望非常小）所以我想绘制颜色对数刻度。我尝试了不同变体的 trans="log"，但没有一个起作用
我想在图例中显示超过 6 个值。我尝试了例如休息，标签，但这并不奏效
(p <- ggplot(dataPVal.m, aes(variable, structure)) + geom_tile(aes(fill = pValue), colour = "white") + scale_colour_gradientn(colour = rainbow(100), breaks = c(1,2,3,4,5,6), labels =c("a","b","c","d","e","f")) + theme_grey(base_size = base_size) + labs(x = "position (0=seed start)",y = "structure") + ## labels #scale_x_discrete(expand = c(0.01, 0.01)) + ## grauer rand oben/unten #scale_y_discrete(expand = c(0.01, 0.01)) + ## grauer rand links/rechts opts(title=plot_title,legend.position = "left",axis.ticks = theme_blank(), axis.text.x = theme_text(size = base_size * 0.8, angle = 330, hjust = 0, colour = "grey50")) )
这是 pValue 表 (dataPVal.m) 的示例：
结构变量值 pValue 1 CB -10 1.00000000 1.00000000 2 BB -10 1.00000000 1.00000000 3 SC -10 0.34700205 0.34700205 4 GC -10 1.00000000 1.00000000 5 BC -10 1.00000000 1.00000000 6 SG -10 0.44494198 0.44494198 7 JG -10 1.00000000 1.00000000 8 IG -10 1.00000000 1.00000000 9 HG -10 1.00000000 1.00000000 10 CG -10 1.00000000 1.00000000 11 HH -10 1.00000000 1.00000000 12 GH -10 0.34375000 0.00000025 13 SI -10 0.25000000 0.25000000 14 吉-10 0.40359735 0.40359735 15 II -10 1.00000000 1.00000000 16 GI -10 1.00000000 1.00000000 17 SJ -10 0.53296021 0.53296021 18 IJ -10 1.00000000 1.00000000 19 GJ -10 1.00000000 1.00000000 20 美国 -10 0.19567557 0.19567557 21 不锈钢 -10 0.43017585 0.00000032 22 JS -10 1.00000000 1.00000000 23 IS -10 1.00000000 1.00000000 24 GS -10 1.00000000 1.00000000 25 CS -10 1.00000000 1.00000000 26 UU -10 0.39863089 0.39863089 27 苏 -10 0.50000000 0.50000000 28 朱 -10 1.00000000 1.00000000 29 CB -9 0.34944171 0.34944171 30 BB -9 1.00000000 1.00000000 31 SC -9 0.53230531 0.53230531
有没有人可以解决这两个问题？
谢谢这么久