You can use the fn:round-half-to-even function. The first argument is the number to round and the second is the precision to round to. For example:
fn:round-half-to-even(77.74999591708135, 2) will return 77.75 On 9/4/19 1:46 PM, Costello, Roger L. wrote: > Thanks Mike. Now it works. But look at the XML output, below. Way too many > digits to the right of the decimal point. Ordinarily I would use the XPath > format-number() function to remove some of those digits, but Daffodil doesn’t > support format-number(). Is there something else that I can use? > > /Roger > > <input> > <command-code>4</command-code> > <longitude> > <raw>3623412</raw> > <degrees>77.74999591708135 degrees east</degrees> > </longitude> > <area-code>3</area-code> > </input> > > *From:* Beckerle, Mike <mbecke...@tresys.com> > *Sent:* Wednesday, September 4, 2019 1:27 PM > *To:* users@daffodil.apache.org > *Subject:* [EXT] Re: Non-terminating decimal expansion ... huh? > > You are doing divisions among integers. > > If you want it to convert to floating point you need to be explicit. > > Otherwise it tries to keep things as decimal, but clearly that can't work for > division. > > I suggest changing your 180 constants to xs:double(180) That should force > everything to convert into double-precision floating point. > > -------------------------------------------------------------------------------- > > *From:*Costello, Roger L. <coste...@mitre.org <mailto:coste...@mitre.org>> > *Sent:* Wednesday, September 4, 2019 1:18 PM > *To:* users@daffodil.apache.org <mailto:users@daffodil.apache.org> > <users@daffodil.apache.org <mailto:users@daffodil.apache.org>> > *Subject:* Non-terminating decimal expansion ... huh? > > Hello DFDL community, > > The below DFDL schema produces this error message: > > *[error] Parse Error: Non-terminating decimal expansion; no exact > representable > decimal result. (within Expression Evaluation Error: Non-terminating decimal > expansion; no exact representable decimal result.* > > What does that mean? Why am I getting it? How to fix it? /Roger > > <xs:elementname="input"> > <xs:complexType> > <xs:sequence> > <xs:elementname="command-code"type="unsignedint3"/> > <xs:elementname="longitude"> > <xs:complexType> > <xs:sequence> > <xs:elementname="raw"type="unsignedint24"/> > <xs:elementname="degrees"type="xs:string"dfdl:inputValueCalc="{ > if (../raw eq 0) then '0 degrees' > else if (../raw lt 8388607) then > fn:concat((../raw > * 180 div 8388607), ' degrees east') > else fn:concat('-',((../raw - 8388607) * 180 div > 8388607), ' degrees west') > }"/> > </xs:sequence> > </xs:complexType> > </xs:element> > <xs:elementname="area-code"type="unsignedint5"/> > </xs:sequence> > </xs:complexType> > </xs:element> >
