<>
Most of your problems seem to be due to the fact that you are using "g"
instead of "f" in your formatting directives. See [U], 12.5 for more info.
Leading zeroes can be induced by inserting a zero after the percentage sign.
Also note that you do not need to use the -string()- function, as -display-
is able to apply a formatting directive on its own, as seen in the last row:
*************
di "`=string(-0.000029, "%9.2g")'"
di in red "`=string(-0.000029, "%09.2f")'"
di "`=string(-0.0000201, "%9.2g")'"
di in red "`=string(-0.0000201, "%7.6f")'"
di "`=string(-0.000029, "%9.1g")'"
di in red "`=string(-0.000029, "%09.1f")'"
di in red %09.1f -0.000029
*************
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Miranda Kim
Gesendet: Donnerstag, 1. Oktober 2009 13:33
An: [email protected]
Betreff: st: Keeping trailing zeros when formatting a decimal
I would be very grateful for advice on the following basic formatting
questions...
To store a number as a string with a format showing 2 significant
figures, I do the following, for example:
di "`=string(-0.000029, "%9.2g")'"
If the second significant figure is a zero, how can I make sure this is
still displayed?
The following produces:
. di "`=string(-0.0000201, "%9.2g")'"
-.00002
when I want it to display "-0.000020"
Also, how can I make sure it displays the zero before the decimal point?
Also, why does
. di "`=string(-0.000029, "%9.1g")'"
-.000029
not show only 1 significant figure?
Many thanks for your help.
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* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
