这个问题在这里已经有了答案:
write.table writes unwanted leading empty column to header when has rownames
(5 个回答)
6年前关闭。
我尝试将矩阵写出到 csv,同时保留行名(参见 Export matrix in r)。
但是,当我使用 write.table() 执行此操作时,所有列都向左移动(因此第一个数据列标题出现在 rownames 列上方)。
"PC1","PC2","PC3","PC4"
"Murder",0.0417043206282872,-0.04482165626967,0.0798906594208106,-0.994921731246978
"Assault",0.995221281426497,-0.0587600278572231,-0.0675697350838042,0.03893829763516
"UrbanPop",0.0463357461197111,0.976857479909889,-0.200546287353865,-0.0581691430589317
"Rape",0.0751555005855469,0.200718066450337,0.974080592182492,0.0723250196376096
我尝试了以下操作(手动添加额外的列):
merged.pca <- prcomp(USArrests)
write.table(merged.pca$rotation, file = "rotation.csv", sep = ",", col.names = c("rowname",colnames(merged.pca$rotation)))
不幸的是,这失败了:
Error in write.table(merged.pca$rotation, file = "rotation.csv", sep = ",", :
invalid 'col.names' specification
TBH 我不知道这个错误是什么意思。是不是参数是列表而不是向量?
最佳答案
根据 write.table
的帮助,您要指定 col.names=NA
:
write.table(merged.pca$rotation, file="rotation.csv", col.names=NA, sep=",")
是的,我也觉得有点傻。请注意
write.csv
将自动为您执行此操作。
关于r - write.table 不输出行名称的标题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17252894/