基于R中的一列汇总多列

Question

我有一个看起来像这样的数据框：

TCGA_Name	Full_Name	Gene.Name
Thyroid Carcinoma	Papillary Thyroid Cancer	NRAS
Thyroid Carcinoma	Thyroid Gland Carcinoma	NRAS
Sarcoma	Uterine leiomyosarcoma	PIK3CA
Sarcoma	Sarcoma	PIK3CA
Ovarian Serous Cystadenocarcinoma	High Grade Serous Ovarian Cancer	PIK3CA

我正在尝试根据 TCGA_Name 减少行数。我想 Full_Name 癌症类型，如果它们具有相同的 TCGA 标题并共享它们 gene.name。最终产品应如下所示：

TCGA_Name	Full_Name	Gene.Name
Thyroid Carcinoma	Papillary Thyroid Cancer, Thyroid Gland Carcinoma	NRAS
Sarcoma	Uterine leiomyosarcoma, Sarcoma	PIK3CA
Ovarian Serous Cystadenocarcinoma	High Grade Serous Ovarian Cancer	PIK3CA

到目前为止我已经做到了：

library(plyr) 
df1 <- ddply(df1, .(TCGA_Name), summarize, text=paste(Hotspot_Name, collapse=", "))```

但这会删除 Gene.Name 列

一如既往，非常感谢您的帮助！

Answer 1

是你想要的吗？

df1 <- ddply(df1, .(TCGA_Name,Gene.Name), summarize, text=paste(Full_Name, collapse=", "))

只需添加'Gene.Name'

Summarizing multiple columns based on one column in R