Hi All,
I was adding a new row of data to my data frame using rbind(). I
was surprised to see that after adding new row, I lost my data frame level
attibute as well as col level attribute. Please help me to insert a new
row at frist or middle position so that my custom attribute is not lost.
Here is what I did.
age<-c(15,20,18)
weight<-c(40,42,30)
### creating my data frame ####
mydata <- data.frame(age,weight)
### creating data frame level attribute ####
attr(mydata,"myattr")<-c("myinfo")
### creating col level attribute for 'age' column ###
attr(mydata$age,"mycolattr")<-c("mycolinfo")
#### Checking attributes ###
attributes(mydata)
attributes(mydata$age)
### creating new row #####
newrow <- data.frame(age=16, weight= 42)
#### Inserting newrow as first row to my data frame ####
mydata<- rbind(newrow, mydata)
#### Checking attributes again ### I lost my custom attributes
attributes(mydata$age)
attributes(mydata)
Thanks in advance,
--
SG
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