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127147
2014 Apr 03
0
Views aren't caching, can't see why
I am working on a Rails 3.0 application, and I just made a change to an erb view template, reloaded the page in my browser (from the server, not development) and the change was instantly available. This tells me that the template isn't being pre-cached, and I can't see why. I've looked through the production environment file, there are no configuration statements that leap out at me
2008 Jun 06
6
Subsetting to unique values
I want to take the first row of each unique ID value from a data frame.
For instance
> ddTable <-
data.frame(Id=c(1,1,2,2),name=c("Paul","Joe","Bob","Larry"))
I want a dataset that is
Id Name
1 Paul
2 Bob
> unique(ddTable)
Will give me all 4 rows, and
> unique(ddTable$Id)
Will give me c(1,2), but not accompanied by the name column.