public Dataset(List <double[]> images, List <int> labels, int labelCount)
{
var ds = images.ConvertAll(x => (Accessor <double[]>) new MemAccessor <double[]>(x));
var ls = labels.ConvertAll(x => (Accessor <int>) new MemAccessor <int>(x));
data_ = new DSList <double[]>(ds);
labels_ = new DSList <int>(ls);
labelCount_ = labelCount;
}
public DSList <T> CreatePermutation(int[] permutation)
{
DSList <T> ret = new DSList <T>();
for (int i = 0; i < Count(); i++)
{
ret.elems_.Add(elems_[permutation[i]]);
}
return(ret);
}
public Dataset(Dataset d)
{
data_ = new DSList <double[]>();
labels_ = new DSList <int>();
for (int i = 0; i < d.Count(); i++)
{
data_.Add(d.data_.GetAccessor(i));
labels_.Add(d.labels_.GetAccessor(i));
}
labelCount_ = d.LabelCount();
}
public List <DSList <T> > CreateSplit(int[] counts)
{
List <DSList <T> > result = new List <DSList <T> >();
int start = 0;
for (int i = 0; i < counts.Length; i++)
{
DSList <T> data = new DSList <T>();
for (int j = 0; j < counts[i]; j++)
{
data.Add(GetAccessor(start + j));
}
result.Add(data);
start += counts[i];
}
if (start != Count())
{
throw new Exception("Inconsistent dimensions!");
}
return(result);
}
public Dataset(String directory, int labelCount)
{
Console.WriteLine("Loading directory-based dataset.");
Console.WriteLine("NB: (a) expecting a 'coordinates' text file (3 lines, height, width, channel)");
Console.WriteLine(" (b) expecting a set of <id>.datum binary and <id>.label text file containing label");
DirectoryInfo d = new DirectoryInfo(directory);
data_ = new DSList <double[]>();
labels_ = new DSList <int>();
foreach (var file in d.GetFiles("*.datum"))
{
var fa = new BinDataAccessor(file.FullName);
string labelfn = System.IO.Path.ChangeExtension(file.FullName, ".label");
var fl = new TxtDataAccessor(labelfn);
data_.Add(fa);
labels_.Add(fl);
}
labelCount_ = labelCount;
}
public Dataset(int labelcount)
{
data_ = new DSList <double[]>();
labels_ = new DSList <int>();
labelCount_ = labelcount;
}
public Dataset(DSList <double[]> data, DSList <int> labels, int labelCount)
{
data_ = data;
labels_ = labels;
labelCount_ = labelCount;
}