I am not sure if I understand this
correctly, but I see two possible issues:
1. Stata holds your numbers in binary,
so apparent small anomalies can often be explained
by the inability to hold certain decimals
exactly.
. search precision
points to relevant FAQs.
2. -tabulate- is reluctant to tabulate classes which
don't exist in the data. In particular, you can't
get zero counts out of -tabulate <myvar>-.
Nick
[email protected]
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Andreas
> Aschbacher
> Sent: 11 December 2003 13:02
> To: [email protected]
> Subject: st: tab
>
>
> I have the following text-file:
>
> 1.549688 <- I use this value below
> 1.551809
> 1.857859
> 2.032088
> 2.055405
> 2.211566
> 2.36462
> 2.36556
> 2.451005
> 2.464704
> 2.562639
> 2.568022
> 2.575661
> ...... / always with 5 or 6 places
> behind comma
> /
>
> and I do the following :
> .gen to_table = 1.549688 + 0.05*floor((myvar -
> 1.549688 )/0.05)
> .tab to_table
> in order to count the values in the intervals -
> first step : 1.549688 + 0.05 - count value
> second step: (1.549688 + 0.05) + 0.05 - count value
> and so on
> why is there no count-value "zero"when there is no value in specific
> interval ?
> I always have 1 at least -
> any helpm will be appreciated very much
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
