std::string quantile_field(double quantile) {
if (quantile == 0) return "min";
else if (quantile == 0.5) return "median";
else if (quantile == 1) return "max";
else if (quantile > 0 and quantile < 1) return "q" + double_str(quantile, std::numeric_limits<double>::digits10).substr(2);
throw std::invalid_argument("invalid argument passed to creativity::data::quantile_field: quantiles must be >= 0 and <= 1");
}
/**
* Returns a double value.
*
* @note The returned value is what we get by converting the string form
* of the number to a double.
*
* @return The double value of the tag.
*
* @see CECTag(ec_tagname_t, double)
*/
double CECTag::GetDoubleData(void) const
{
if (m_dataType != EC_TAGTYPE_DOUBLE) {
EC_ASSERT(m_dataType == EC_TAGTYPE_UNKNOWN);
return 0;
} else if (m_tagData == NULL) {
EC_ASSERT(false);
return 0;
}
std::istringstream double_str(m_tagData);
double data;
double_str >> data;
return data;
}
