[datatable-help] Apparent loss of decimals when reading a numeric column with fread() !
nachti
kpm.nachtmann at gmail.com
Tue Aug 4 13:16:46 CEST 2015
Hi,
copying your code, everything works as expected for me.
Maybe you just referenced to a wrong object (pcn08)?
```
> library(data.table)
data.table 1.9.4 For help type: ?data.table
*** NB: by=.EACHI is now explicit. See README to restore previous behaviour.
> pcn <- fread("PovCalServlet_15.08.03.csv")
sapply(pcn, class)
pcn <- fread("PovCalServlet_15.08.03.csv")
> sapply(pcn, class)
country povLine mean hcr gap sev
"character" "numeric" "numeric" "numeric" "numeric" "numeric"
watts popM yearNum
"numeric" "numeric" "numeric"
> pcn08$yearNum
Error: object 'pcn08' not found
> pcn$yearNum
[1] 2008.50 2011.50 2009.25 2009.00 2006.00 2007.50 2007.00 2008.00 2011.00
[10] 2004.00 2005.50 2011.00 2008.00 2010.50 2005.00 2003.00 2005.50 2008.00
[19] 2007.00 2012.00 2002.00 2005.40 2010.00 2007.00 2010.00 2010.23 2010.00
[28] 2008.00 2008.00 2012.00 2006.00 2008.64 2009.50 2011.00 2009.83 2010.83
[37] 2010.00 2011.00 2006.50 2011.00 2010.67 2009.00 2009.50 2011.80 2011.00
[46] 2008.00 2012.50 2009.30 2010.00 2008.50 2011.50 2009.25 2009.00 2006.00
[55] 2007.50 2007.00 2008.00 2011.00 2004.00 2005.50 2011.00 2008.00 2010.50
[64] 2005.00 2003.00 2005.50 2008.00 2007.00 2012.00 2002.00 2005.40 2010.00
[73] 2007.00 2010.00 2010.23 2010.00 2008.00 2008.00 2012.00 2006.00 2008.64
[82] 2009.50 2011.00 2009.83 2010.83 2010.00 2011.00 2006.50 2011.00 2010.67
[91] 2009.00 2009.50 2011.80 2011.00 2008.00 2012.50 2009.30 2010.00
> sessionInfo()
R version 3.2.1 (2015-06-18)
Platform: x86_64-suse-linux-gnu (64-bit)
Running under: openSUSE 13.1 (Bottle) (x86_64)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] data.table_1.9.4
loaded via a namespace (and not attached):
[1] compiler_3.2.1 magrittr_1.5 plyr_1.8.3 tools_3.2.1
reshape2_1.4.1
[6] Rcpp_0.11.6 stringi_0.5-5 stringr_1.0.0 chron_2.3-4
```
~g
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