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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