|
public static GenerateByIndex ( Func, generator ) : IEnumerable |
||
| generator | Func, | |
| return | IEnumerable |
|
public IEnumerable <NeuralNetwork> BuildNetworks()
{
while (true)
{
var graph = new AdjacencyGraph <INeuron, Connection>();
var inputs = MoreEnumerable.GenerateByIndex(_ => new NeuronWithInput()).Take(_inputSize).ToArray();
var mid =
MoreEnumerable.GenerateByIndex(_ => new BasicNeuron(new ThFunction()))
.Take(_random.Next(_outputSize, _inputSize))
.ToArray();
var outputs =
MoreEnumerable.GenerateByIndex(_ => new BasicNeuron(new ThFunction())).Take(_outputSize).ToArray();
foreach (var i in inputs)
{
foreach (var m in mid)
{
var weight = _random.NextDouble();
graph.AddVerticesAndEdge(new Connection(i, m, weight));
}
}
foreach (var m in mid)
{
foreach (var o in outputs)
{
var weight = _random.NextDouble();
graph.AddVerticesAndEdge(new Connection(m, o, weight));
}
}
yield return(new NeuralNetwork(graph, inputs, outputs));
}
}
public object SolveGenerateByIndex()
{
// using MoreLinq GenerateByIndex
var sum = MoreEnumerable.GenerateByIndex(x => (x % 3 == 0) || (x % 5 == 0) ? x : 0).Take(1000).Sum();
return(sum);
}
private void test()
{
DateTime startDate = DateTime.Now.AddDays(-29);
DateTime endDate = DateTime.Now.AddDays(1);
using (var dc = new DataContext())
{
//get database sales from 29 days ago at midnight to the end of today
var salesForPeriod = dc.Orders.Where(b => b.OrderDateTime > startDate.Date && b.OrderDateTime <= endDate.Date);
var allDays = MoreEnumerable.GenerateByIndex(i => startDate.AddDays(i)).Take(30);
var salesByDay = from s in salesForPeriod
group s by s.OrderDateTime.Date into g
select new {Day = g.Key, totalSales = g.Sum(x=>(decimal)x.OrderPrice};
var query = from d in allDays
join s in salesByDay on s.Day equals d
select new {Day = s.Day , totalSales = (s != null) ? s.totalSales : 0m;
foreach (var item in query)
{
Response.Write("Date: " +item.Day.ToString() " Sales: " + String.Format("{0:0.00}", item.totalSales) + "<br>");
}
}
}
}
private void test()
{
DateTime startDate = DateTime.Now.AddDays(-29);
DateTime endDate = DateTime.Now.AddDays(1);
using (var dc = new DataContext())
{
//get database sales from 29 days ago at midnight to the end of today
var salesForPeriod = dc.Orders.Where(b => b.OrderDateTime > startDate.Date && b.OrderDateTime <= endDate.Date);
var allDays = MoreEnumerable.GenerateByIndex(i => startDate.AddDays(i)).Take(30);
var salesByDay = from s in salesForPeriod
group s by s.OrderDateTime.Date into g
select new {Day = g.Key, totalSales = g.Sum(x=>(decimal)x.OrderPrice};
var query = from d in allDays
join s in salesByDay on s.Day equals d into j
select (s != null) ? s.totalSales : 0m;
}
}
}
public void GenerateByIndex()
{
var sequence = MoreEnumerable.GenerateByIndex(x => x.ToString()).Take(3);
sequence.AssertSequenceEqual("0", "1", "2");
}
public void GenerateByIndexWithNullGenerator()
{
MoreEnumerable.GenerateByIndex <int>(null);
}
public void GenerateByIndexIsLazy()
{
MoreEnumerable.GenerateByIndex(BreakingFunc.Of <int, int>());
}
public void GenerateByIndexWithNullGenerator()
{
Assert.ThrowsArgumentNullException("generator", () =>
MoreEnumerable.GenerateByIndex <int>(null));
}
