Can't put negative number with DATAEXPORTCOND

Hi,

I am trying to a condition in the data export script where I don't want to export some numbers in the file.

While using a positive number with DATAEXPORTCOND  for e.g DATAEXPORTCOND ("Forecast" > 2) the script is validating fine. However, while trying to use a negative number e,g DATAEXPORTCOND ("Forecast" <-2); , it gives the below syntax error:

Error: 1012096 Syntax error in DataExportCond command. The condition parameters must be values or valid member names.

Is there any limitations that we can't use negative numbers with DATAEXPORTCOND ?

Thanks.