Hello EpiData friends,

I just sent an email about an error

"invalid boolean expression"

when trying to export to EpiData format with EpiData entry with filters.

I guess that I found an unexpected bug.

When I use the following filters the export is OK (alt1 is numeric variable formated as ####.##).

alt1 <> 42 alt1 = 42

But when I use the following filters the export give this error. alt1 >= 42 alt1 <= 42 alt1 > 42 alt1 < 42

Therefore, I guess there is something to do with the > or < signs!

Did anyone experience such an error before?

Abraço forte e que a força esteja com você,

Dr. Pedro Emmanuel A. A. do Brasil Instituto de Pesquisa Clínica Evandro Chagas Fundação Oswaldo Cruz Rio de Janeiro - Brasil

---------- Forwarded message ---------- From: Pedro Emmanuel Alvarenga Americano do Brasil < emmanuel.brasil@gmail.com> Date: 2010/4/1 Subject: Exporting to epidata format - not valid boolean expression To: epidata-list@lists.umanitoba.ca

Hello EpiData friends,

Im having a little trouble that I would appreciate very much some help.

I have a rec file which I would like to create a subset. I tried to use the EpiData entry data export, using the filter option.

When I set the filter such as:

hepato <> 2 it is ok.

But when I set the filter as

alt1 >= 42

... or I set the filter as ...

(alt >= 42) or (hepato <> 2)

I get an error saying this is not a valid boolean expression. I tried in several different ways and I couldnt figure out what Im doing worng.

Any tip?

Abraço forte e que a força esteja com você,

Dr. Pedro Emmanuel A. A. do Brasil Instituto de Pesquisa Clínica Evandro Chagas Fundação Oswaldo Cruz Rio de Janeiro - Brasil