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Re: st: Stata vs R
From
Scott Merryman <[email protected]>
To
[email protected]
Subject
Re: st: Stata vs R
Date
Tue, 7 Jan 2014 09:50:36 -0600
I find that Stata consistently takes less than a minute (Windows,
StataMP, dual core 64bit) to load a 458mb text file:
. clear*
. set obs 1200000
obs was 0, now 1200000
. forv i = 1/40 {
2. gen var`i' = runiform()
3. }
.
. export delimited using "C:\Users\scott.merryman\Desktop\import
test.txt", delimiter(";") replace
(note: file C:\Users\scott.merryman\Desktop\import test.txt not found)
file C:\Users\scott.merryman\Desktop\import test.txt saved
. clear*
. tempname memhold
. tempfile results
. postfile `memhold' time using `results'
. forv i = 1/25 {
2. qui {
3. timer clear
4. timer on 1
5. import delimited "C:\Users\scott.merryman\Desktop\import
test.txt", delimiter(";") clear
6. timer off 1
7. timer list 1
8. post `memhold' (r(t1))
9. }
10. }
.
. postclose `memhold'
. use `results', clear
. sum
Variable | Obs Mean Std. Dev. Min Max
-------------+--------------------------------------------------------
time | 25 55.98164 .910623 54.781 57.826
Scott
On Tue, Jan 7, 2014 at 8:02 AM, Daniel Marcelino da
Silva,0962678,33072590,34471294, <[email protected]> wrote:
> I found the results presented in the post below quite intriguing, any
> thought?
>
> http://danielmarcelino.com/r-vs-stata-importing-and-saving-datasets/
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/