2023-11-15 monocle3中更改细胞群的颜色

在做monocle3的最后需要在图中显示轨迹，会用到plot_cells这个函数，如

plot_cells(cds, label_groups_by_cluster = F, label_leaves = FALSE, cell_size = 0.5, label_branch_points = F,show_trajectory_graph = TRUE,color_cells_by = "celltype",label_cell_groups = F)

这时候得到的umap图的颜色可能和我们之前用seurat得到的umap细胞群的颜色不一致，那就需要手动修改一下。
看了plot_cells函数文档，并没有可以直接修改颜色的参数，就考虑用ggplot去改

plot_cells(cds, label_groups_by_cluster = F, label_leaves = FALSE, cell_size = 0.5,label_branch_points = F,show_trajectory_graph = TRUE,color_cells_by = "celltype",label_cell_groups = F)+theme(panel.border = element_rect(fill=NA,color="black", size=0.5, linetype="solid"))+ scale_colour_manual(values=c("#7cc0a7","#9daf91","#c49f7d","#90a0c7","#caa5a0","#bcbc81","#b1d567"))

然后就可以了！