private void addCache(DataSeries arrY, int x)
{
double y = arrY[x];
OnlineRegression temp;
//# 新しい列を作成
stats[x] = new Dictionary <int, OnlineRegression>();
stats[x][x] = new OnlineRegression();
stats[x][x].push(x, y);
int p = getPrevIndex(x);
int prev = (p >= 0) ? cachedXY[p].Key : -1;
//# 対象期間の値を加算
temp = new OnlineRegression();
for (int j = prev + 1; j <= x; j++)
{
temp.push(j, arrY[j]);
}
//# 直前のデータがあれば行に合計値をセット
if (p >= 0)
{
int limit = x - (int)(LookBack * 1.5);
foreach (KeyValuePair <int, OnlineRegression> kv in stats[prev])
{
if (kv.Key < limit)
{
continue;
}
stats[x][kv.Key] = kv.Value + temp;
}
}
//# 以降にデータがあれば
int sz = cachedXY.Count;
if (p + 1 < sz)
{
int last = cachedXY[sz - 1].Key;
temp = new OnlineRegression();
for (int j = x; j <= last; j++)
{
temp.push(j, arrY[j]);
Dictionary <int, OnlineRegression> o;
if (stats.TryGetValue(j, out o))
{
stats[j][x] = temp;
}
}
}
int i_ins = p + 1;
cachedXY.Insert(i_ins, new KeyValuePair <int, double>(x, y));
}
public static OnlineRegression operator +(OnlineRegression a, OnlineRegression b)
{
OnlineRegression combined = new OnlineRegression();
combined.n = a.n + b.n;
combined.x = a.x + b.x;
combined.y = a.y + b.y;
combined.xx = a.xx + b.xx;
combined.yy = a.yy + b.yy;
combined.xy = a.xy + b.xy;
return(combined);
}