private static object CastItem(string text, SOMFieldType type)
{
switch (type)
{
case SOMFieldType.Integer:
long castLong;
if (long.TryParse(text, out castLong))
{
return(castLong);
}
else
{
return((long?)null);
}
case SOMFieldType.FloatingPoint:
decimal castDecimal;
if (decimal.TryParse(text, out castDecimal))
{
return(castDecimal);
}
else
{
return((decimal?)null);
}
case SOMFieldType.DateTime:
//
DateTime castDate;
if (DateTime.TryParse(text, out castDate))
{
return(castDate);
}
else
{
return((DateTime?)null);
}
case SOMFieldType.AlphaNumeric:
case SOMFieldType.AnyText:
default:
return(text);
}
}
private static object CastItem(string text, SOMFieldType type)
{
switch (type)
{
case SOMFieldType.Integer:
long castLong;
if (long.TryParse(text, out castLong))
{
return castLong;
}
else
{
return (long?)null;
}
case SOMFieldType.FloatingPoint:
decimal castDecimal;
if (decimal.TryParse(text, out castDecimal))
{
return castDecimal;
}
else
{
return (decimal?)null;
}
case SOMFieldType.DateTime:
//
DateTime castDate;
if (DateTime.TryParse(text, out castDate))
{
return castDate;
}
else
{
return (DateTime?)null;
}
case SOMFieldType.AlphaNumeric:
case SOMFieldType.AnyText:
default:
return text;
}
}
public static SOMFieldStats GetFieldStats(IEnumerable <string> field, SOMFieldType?typeOverride = null)
{
// Dedupe
string[] deduped = field.
Select(o => o.Trim()).
Distinct().
ToArray();
// Unique Chars
char[] uniqueChars = deduped.
SelectMany(o => o).
Distinct().
OrderBy(o => o).
ToArray();
// FieldType
SOMFieldType type = typeOverride ?? GetFieldType(field);
// Numeric Stats
double?numericMin = null;
double?numericMax = null;
double?numericAvg = null;
double?numericStandDev = null;
if (type == SOMFieldType.Integer || type == SOMFieldType.FloatingPoint)
{
double[] numerics = field.
Select(o => string.IsNullOrWhiteSpace(o) ? 0d : double.Parse(o.Trim())).
ToArray();
numericMin = numerics.Min();
numericMax = numerics.Max();
var avg_stdev = Math1D.Get_Average_StandardDeviation(numerics);
numericAvg = avg_stdev.Item1;
numericStandDev = avg_stdev.Item2;
}
// Date Stats
DateTime?dateMin = null;
DateTime?dateMax = null;
DateTime?dateAvg = null;
TimeSpan?dateStandDev = null;
if (type == SOMFieldType.DateTime)
{
DateTime[] dates = field.
Where(o => !string.IsNullOrWhiteSpace(o)).
Select(o => DateTime.Parse(o.Trim())).
ToArray();
dateMin = dates.Min();
dateMax = dates.Max();
var avg_stdev = Math1D.Get_Average_StandardDeviation(dates);
dateAvg = avg_stdev.Item1;
dateStandDev = avg_stdev.Item2;
}
// Return
return(new SOMFieldStats()
{
Count = field.Count(),
UniqueCount = deduped.Length,
MinLength = deduped.Min(o => o.Length), // deduped are already trimmed
MaxLength = deduped.Max(o => o.Length),
UniqueChars = uniqueChars,
UniqueChars_NonWhitespace = uniqueChars.Where(o => !UtilityCore.IsWhitespace(o)).ToArray(),
FieldType = type,
Numeric_Min = numericMin,
Numeric_Max = numericMax,
Numeric_Avg = numericAvg,
Numeric_StandDev = numericStandDev,
Date_Min = dateMin,
Date_Max = dateMax,
Date_Avg = dateAvg,
Date_StandDev = dateStandDev,
});
}
public static SOMFieldStats GetFieldStats(IEnumerable<string> field, SOMFieldType? typeOverride = null)
{
// Dedupe
string[] deduped = field.
Select(o => o.Trim()).
Distinct().
ToArray();
// Unique Chars
char[] uniqueChars = deduped.
SelectMany(o => o).
Distinct().
OrderBy(o => o).
ToArray();
// FieldType
SOMFieldType type = typeOverride ?? GetFieldType(field);
// Numeric Stats
double? numericMin = null;
double? numericMax = null;
double? numericAvg = null;
double? numericStandDev = null;
if (type == SOMFieldType.Integer || type == SOMFieldType.FloatingPoint)
{
double[] numerics = field.
Select(o => string.IsNullOrWhiteSpace(o) ? 0d : double.Parse(o.Trim())).
ToArray();
numericMin = numerics.Min();
numericMax = numerics.Max();
var avg_stdev = Math1D.Get_Average_StandardDeviation(numerics);
numericAvg = avg_stdev.Item1;
numericStandDev = avg_stdev.Item2;
}
// Date Stats
DateTime? dateMin = null;
DateTime? dateMax = null;
DateTime? dateAvg = null;
TimeSpan? dateStandDev = null;
if (type == SOMFieldType.DateTime)
{
DateTime[] dates = field.
Where(o => !string.IsNullOrWhiteSpace(o)).
Select(o => DateTime.Parse(o.Trim())).
ToArray();
dateMin = dates.Min();
dateMax = dates.Max();
var avg_stdev = Math1D.Get_Average_StandardDeviation(dates);
dateAvg = avg_stdev.Item1;
dateStandDev = avg_stdev.Item2;
}
// Return
return new SOMFieldStats()
{
Count = field.Count(),
UniqueCount = deduped.Length,
MinLength = deduped.Min(o => o.Length), // deduped are already trimmed
MaxLength = deduped.Max(o => o.Length),
UniqueChars = uniqueChars,
UniqueChars_NonWhitespace = uniqueChars.Where(o => !UtilityCore.IsWhitespace(o)).ToArray(),
FieldType = type,
Numeric_Min = numericMin,
Numeric_Max = numericMax,
Numeric_Avg = numericAvg,
Numeric_StandDev = numericStandDev,
Date_Min = dateMin,
Date_Max = dateMax,
Date_Avg = dateAvg,
Date_StandDev = dateStandDev,
};
}