public void TestScikitAPI_DelegateEnvironment()
{
var inputs = new[] {
new ExampleA()
{
X = new float[] { 1, 10, 100 }
},
new ExampleA()
{
X = new float[] { 2, 3, 5 }
}
};
var inputs2 = new[] {
new ExampleA()
{
X = new float[] { -1, -10, -100 }
},
new ExampleA()
{
X = new float[] { -2, -3, -5 }
}
};
var stdout = new List <string>();
var stderr = new List <string>();
ILogWriter logout = new LogWriter((string s) =>
{
stdout.Add(s);
});
ILogWriter logerr = new LogWriter((string s) =>
{
stderr.Add(s);
});
using (var host = new DelegateEnvironment(conc: 1, outWriter: logout, errWriter: logerr, verbose: 3))
using (var ch = host.Start("Train Pipeline"))
{
ComponentHelper.AddStandardComponents(host);
ch.Info(MessageSensitivity.All, "Polynomial");
var data = host.CreateStreamingDataView(inputs);
using (var pipe = new ScikitPipeline(new[] { "poly{col=X}" }, host: host))
{
var predictor = pipe.Train(data);
if (predictor == null)
{
throw new Exception("Predictor is null");
}
}
}
if (stdout.Count == 0)
{
throw new Exception("stdout is empty.");
}
if (stderr.Count != 0)
{
throw new Exception($"stderr not empty\n{string.Join("\n", stderr)}");
}
}
public void TestScikitAPI_DelegateEnvironmentVerbose0()
{
var inputs = new[] {
new ExampleA()
{
X = new float[] { 1, 10, 100 }
},
new ExampleA()
{
X = new float[] { 2, 3, 5 }
}
};
var inputs2 = new[] {
new ExampleA()
{
X = new float[] { -1, -10, -100 }
},
new ExampleA()
{
X = new float[] { -2, -3, -5 }
}
};
var stdout = new List <string>();
var stderr = new List <string>();
ILogWriter logout = new LogWriter(s => stdout.Add(s));
ILogWriter logerr = new LogWriter(s => stderr.Add(s));
using (var host = new DelegateEnvironment(conc: 1, outWriter: logout, errWriter: logerr, verbose: 0))
{
ComponentHelper.AddStandardComponents(host);
var data = host.CreateStreamingDataView(inputs);
using (var pipe = new ScikitPipeline(new[] { "poly{col=X}" }, "km{k=2}", host: host))
{
var predictor = pipe.Train(data, feature: "X");
Assert.IsTrue(predictor != null);
}
}
Assert.AreEqual(stdout.Count, 0);
Assert.AreEqual(stderr.Count, 0);
}