r语言绘图二（输入复杂的数学符号－－希腊字母表） - R语言论坛 - 经管之家(原人大经济论坛) (pinggu.org)
CSV读取报错
gcmeta <- read.csv("metadata.csv")
> head(gcmeta)
Sample Patient Tissue Platform Subtype Type Annotation
1 171012N P171012 Normal SC3P P01 Plasma P01_Plasma_IgA\\xa6\\xcb
2 171012N P171012 Normal SC3P P02 Plasma P02_Plasma_IgA\xa6\xca
3 171012N P171012 Normal SC3P P02 Plasma P02_Plasma_IgA\xa6\xca
4 171012N P171012 Normal SC3P P02 Plasma P02_Plasma_IgA\xa6\xca
5 171012N P171012 Normal SC3P P01 Plasma P01_Plasma_IgA\xa6\xcb
6 171012N P171012 Normal SC3P P02 Plasma P02_Plasma_IgA\xa6\xcatxt读取正确
gcmeta <- read.table("metadata.txt",
sep = "\t",header = T)#添加分隔符,
> head(gcmeta)
Sample Patient Tissue Platform Subtype Type Annotation
1 171012N P171012 Normal SC3P P01 Plasma P01_Plasma_IgAλ
2 171012N P171012 Normal SC3P P02 Plasma P02_Plasma_IgAκ
3 171012N P171012 Normal SC3P P02 Plasma P02_Plasma_IgAκ
4 171012N P171012 Normal SC3P P02 Plasma P02_Plasma_IgAκ
5 171012N P171012 Normal SC3P P01 Plasma P01_Plasma_IgAλ
6 171012N P171012 Normal SC3P P02 Plasma P02_Plasma_IgAκ原因：可能是在WPS中进行TXT转CSV文件格式的时候出现错误。