This is an example of pivoting (casting) a data frame.

dcast (pivot) Example.r

require(data.table) #data.table is only required to create the sample data frame
require(reshape2) #dcast is a function in the reshape2 package

#generate a data table with some records
df <- data.table(ServerName = c('SERVER1','SERVER2','SERVER3','SERVER4'),RecordDate = seq(as.Date("2011-12-30"), as.Date("2012-01-11"), by="days"),Value = seq(0, 30, by = 2.35))

#Pivot the result, force the value to be the "Value" field
df <- dcast(df, RecordDate ~ ServerName, value.var = 'Value')

#Get rid of NA values in the data frame
df[is.na(df)] <- ''