/// <summary>
/// Gets the trend interpretation as single line string
/// </summary>
/// <param name="trend">The trend.</param>
/// <returns></returns>
public static string GetTrendInline(this measureTrend trend)
{
string form = "{0} {1,10}:[_{2,15}_ {3,-14}] ({4,11}) _{5,8}_ ";
List <string> st = new List <string>();
st.Add(trend.SampleState.GetStateSymbols());
st.Add(trend.name.toWidthMaximum(8, ""));
st.Add(trend.MicroMean.ToString(trend.format));
if (trend.sampledPeriod > 0)
{
form += trend.sampledPeriod.ToString("F2") + " min";
}
st.Add(trend.unit);
if (trend.SampleState.HasFlag(measureTrendSampleState.macroMean))
{
st.Add(trend.MicroTrend.ToString("P2"));
}
else
{
st.Add("~~~~");
}
st.Add(trend.Direction.GetTrendDirectionSymbols());
return(string.Format(form, st.ToArray()).toWidthExact(75, " "));
}
/// <summary>
/// Gets the trend from set of objects
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="sampleset">Set of objects to take measure from</param>
/// <param name="selector">Expresion that takes the property value from an object in the <c>sampleset</c></param>
/// <param name="trendTaker">The trend taker definition</param>
/// <param name="span">The time span to recalculate mean values for.</param>
/// <returns></returns>
public static measureTrend GetTrend <T>(this IEnumerable <T> sampleset, Func <T, double> selector, measureTrendTaker trendTaker, TimeSpan span)
{
int sC = sampleset.Count();
int sT = Math.Min(sC, trendTaker.MacroSampleSize);
var sValues = (from num in sampleset select selector(num));
//sampleset.Take(sT).GetTimeSpan
measureTrend trend = new measureTrend(sValues, trendTaker, span);
return(trend);
}
