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Tag data-table - This is page 138 - GeneraCodice
Porting set operations from R's data frames to data tables: How to identify duplicated rows?
https://www.generacodice.com/en/articolo/1244163/porting-set-operations-from-r-s-data-frames-to-data-tables-how-to-identify-duplicated-rows
r
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dataframe
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data.table
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set-operations
StackOverflow
Aggregating sub totals and grand totals with data.table
https://www.generacodice.com/en/articolo/1221756/aggregating-sub-totals-and-grand-totals-with-data-table
aggregate
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r
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plyr
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data.table
StackOverflow
Convert column classes in data.table
https://www.generacodice.com/en/articolo/1220792/convert-column-classes-in-data-table
r
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data.table
StackOverflow
Why is running “unique” faster on a data frame than a matrix in R?
https://www.generacodice.com/en/articolo/1210519/why-is-running-unique-faster-on-a-data-frame-than-a-matrix-in-r
performance
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matrix
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r
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dataframe
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data.table
StackOverflow
R: When using data.table how do I get columns of y when I do x[y]?
https://www.generacodice.com/en/articolo/1090152/r-when-using-data-table-how-do-i-get-columns-of-y-when-i-do-x-y
r
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data.table
StackOverflow
R: how to rbind two huge data-frames without running out of memory
https://www.generacodice.com/en/articolo/1089253/r-how-to-rbind-two-huge-data-frames-without-running-out-of-memory
memory
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memory-management
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r
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sqldf
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data.table
StackOverflow
idata.frame: Why error “is.data.frame(df) is not TRUE”?
https://www.generacodice.com/en/articolo/997567/idata-frame-why-error-is-data-frame-df-is-not-true
performance
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r
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plyr
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data.table
StackOverflow
What's the fastest way to merge/join data.frames in R?
https://www.generacodice.com/en/articolo/783535/what-s-the-fastest-way-to-merge-join-data-frames-in-r
performance
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merge
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join
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r
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data.table
StackOverflow
How to do a data.table merge operation
https://www.generacodice.com/en/articolo/365016/how-to-do-a-data-table-merge-operation
merge
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r
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data.table
StackOverflow
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