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datatable-help

This forum is an archive for the mailing list datatable-help@lists.r-forge.r-project.org (more options) Messages posted here will be sent to this mailing list.
Questions and discussion about the data.table package in R. The package extends data.frame to provide keys, fast grouping, fast extract and fast joins in a short and flexible syntax.
data.table's homepage is here.
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Topics (759)
Replies Last Post Views
whole data.table copied "warning" by statquant3
3
by Arunkumar Srinivasan
unique() not working. Is it me or the code? by Farrel Buchinsky
3
by Arunkumar Srinivasan
number of rows selected in .SD subset by Ben Tupper-2
5
by Arunkumar Srinivasan
Using := in .onLoad by juancentro
16
by Mick Cooney
data frame search by trotter12
0
by trotter12
Re: datatable-help Digest, Vol 59, Issue 2 by juancentro
4
by juancentro
best way of eval-ing a list of quoted expressions by Frank Erickson-2
0
by Frank Erickson-2
Append missing characters to character variable to bring to a standard length by Santosh Srinivas
2
by Santosh Srinivas
fread() without quoting? by Harish-3
0
by Harish-3
data table help by cwmm
0
by cwmm
Import matrix? by csjoqvis
0
by csjoqvis
Ordering of filter expressions by Johann Hibschman-3
6
by Johann Hibschman-3
Video of talk at H2O World by Matthew Dowle
4
by James Eales
beginner to R - Need assistance with graphing data by egvillal16
0
by egvillal16
Rolling Joins Replicated in Java MapReduce by dnlbrky
0
by dnlbrky
Rolling Joins Replicated in Java MapReduce by Mike.Gahan
1
by Michael Smith
Sharing a win! by Thell Fowler
0
by Thell Fowler
Error in use with package SNPath by omo004
1
by Arunkumar Srinivasan
Changing data.table row entries based on whether NA is given by JauntyJJS
0
by JauntyJJS
Subsetting Bug? by Michael Smith
6
by Michael Smith
Sistematically construction of 2 variables in data table by Frank S.
4
by Frank S.
to determine the independent variables in any data-set? by caner1617
0
by caner1617
How we do that to determine the independent variables in data? by caner1617
0
by caner1617
Remove some data table rows based on three conditions by Frank S.
3
by Frank S.
Error in row filtering by Harish-3
1
by Harish-3
v1.9.4 is now on CRAN by Matthew Dowle
0
by Matthew Dowle
Random Forest by retter
2
by Michael Smith
Two short questions about the operation of data table by Frank S.
3
by Frank S.
Stability of Duplicate Column Renaming in Version 1.9.3 by Christian Sigg-3
0
by Christian Sigg-3
Replace missings by dates in data table by Frank S.
4
by Frank S.
NA in joins by juancentro
5
by Arunkumar Srinivasan
Update table from other table by juancentro
6
by Arunkumar Srinivasan
To apply different instructions in data table by Frank S.
2
by Frank S.
Two way table with weigth variable by jfca283
0
by jfca283
Unexpected Result Reading in Data File using fread by Martin Watts
1
by Arunkumar Srinivasan
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