What is the type of df[i] ?
i.e. what does it says:
SEXP tmp = df[i] ;
Rprintf( "TYPEOF(tmp)=%d", TYPEOF(tmp) ) ;
If this is anything but REALSXP (i.e. 14), then you have to coerce the
data to bne able to use it as a NumericVector.
Romain
Le 30/04/13 17:19, Pratibha Rana a écrit :
Hi,
MY application is performing really slow due to unnecessary calls to
coerceToReal from this line NumericVector ocol = df[j]. Here is a sample
of what I am doing. Is there a way to avoid the unnecessary overhead?
Please note that the data in df is float data.
void writeDataToPartitionWriter(DataFrame df, Writer
&res_writer)
{
NumericVector ocol = df[j];
if(ocol[i] ==NA_REAL)
res_writer.setFloat(j, vfloat_null);
else
{
vfloat floatout = static_cast<vfloat>(ocol[i]);
res_writer.setFloat(j, floatout);
}
}
Thanks
Pratibha
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