public async Task Run(CommandArgs args)
{
var evt = MasterData.Instance.events.Last();
RankData data;
lock (Program.SekaiFile)
data = RankData.FromFile($"sekai_event{evt.id}.csv");
int.TryParse(args.Arg, out int rank);
if (!data.ranks.ContainsKey(rank))
{
await args.Callback("排名数据不存在");
return;
}
var x = data.timestamp.Select(l => (double)l).ToArray();
var y = data.ranks[rank].Select(l => (double)l).ToArray();
var fit = LSE(x, y);
var fit2 = PassZero(x.Select(l => l - evt.startAt).ToArray(), y);
await args.Callback($"排名{rank}的预测分数为\n{(int)(fit.Item1 * evt.aggregateAt + fit.Item2)} (LSE)\n{(int)(fit2 * (evt.aggregateAt - evt.startAt))} (过原点)");
}