单细胞细胞比例分析

跟着Cell学单细胞转录组分析(六):细胞比例计算及可视化 - 简书 (jianshu.com)
nature级别图表：单细胞转录组细胞比例统计可视化函数 - 简书 (jianshu.com)

通过cluster ID, replicate或两者兼有来列表展示细胞

# How many cells are in each cluster
table(Idents(pbmc))

## 
##  Naive CD4 T Memory CD4 T   CD14+ Mono            B        CD8 T FCGR3A+ Mono 
##          697          483          480          344          271          162 
##           NK           DC     Platelet 
##          155           32           14

# How many cells are in each replicate?
table(pbmc$replicate)

## 
## rep1 rep2 
## 1348 1290

# What proportion of cells are in each cluster?
prop.table(table(Idents(pbmc)))

## 
##  Naive CD4 T Memory CD4 T   CD14+ Mono            B        CD8 T FCGR3A+ Mono 
##  0.264215315  0.183093252  0.181956027  0.130401820  0.102729340  0.061410159 
##           NK           DC     Platelet 
##  0.058756634  0.012130402  0.005307051

# How does cluster membership vary by replicate?
table(Idents(pbmc), pbmc$replicate)

##               
##                rep1 rep2
##   Naive CD4 T   354  343
##   Memory CD4 T  249  234
##   CD14+ Mono    232  248
##   B             173  171
##   CD8 T         154  117
##   FCGR3A+ Mono   81   81
##   NK             81   74
##   DC             18   14
##   Platelet        6    8

prop.table(table(Idents(pbmc), pbmc$replicate), margin = 2)

##               
##                       rep1        rep2
##   Naive CD4 T  0.262611276 0.265891473
##   Memory CD4 T 0.184718101 0.181395349
##   CD14+ Mono   0.172106825 0.192248062
##   B            0.128338279 0.132558140
##   CD8 T        0.114243323 0.090697674
##   FCGR3A+ Mono 0.060089021 0.062790698
##   NK           0.060089021 0.057364341
##   DC           0.013353116 0.010852713
##   Platelet     0.004451039 0.006201550

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