Displaying 2 results from an estimated 2 matches for "partitioning_mode".
2011 Oct 23
4
summarizing a data frame i.e. count -> group by
Hello,
This is one problem at the time :)
I have a data frame df that looks like this:
time partitioning_mode workload runtime
1 1 sharding query 607
2 1 sharding query 85
3 1 sharding query 52
4 1 sharding query 79
5 1 sharding query 77
6 1 sharding query 67
7 1 shardin...
2011 Oct 23
1
unfold list (variable number of columns) into a data frame
..."89" "79" "89" "79" "79" "79" ...
I would like to transform the one above into a data frame where this structure in unfolded in the following way:
'data.frame': N obs. of 3 variables:
$ time : int 1 1 1 1 1 1 1 1 1 1 1 ...
$ partitioning_mode : chr "sharding" "sharding" "sharding" "sharding" "sharding" "sharding" "sharding" "sharding" "sharding" "sharding" ...
$ workload : chr "query" "query" "query" "q...