public static DataFrame Create <T>(T[][] jagged)
{
var df = new DataFrame();
int rowCount = jagged.Length;
int columnCount = 0;
foreach (var j in jagged)
{
if (columnCount < j.Length)
{
columnCount = j.Length;
}
}
var data = new DataFrameColumn <T> [columnCount];
for (var column = 0; column < columnCount; ++column)
{
data[column] = new DataFrameColumn <T>(df, rowCount, 0);
}
for (var row = 0; row < rowCount; ++row)
{
for (var column = 0; column < jagged[row].Length; ++column)
{
data[column].Add(jagged[row][column]);
}
for (var column = jagged[row].Length; column < columnCount; ++column)
{
data[column].Add(default(T));
}
}
for (var column = 0; column < columnCount; ++column)
{
df.DefineNewColumn("c" + column, data[column]);
}
return(df);
}
public static DataFrame Create <T>(T[,] matrix)
{
var df = new DataFrame();
int rowCount = matrix.GetLength(0);
int columnCount = matrix.GetLength(1);
for (var column = 0; column < columnCount; ++column)
{
var v = new DataFrameColumn <T>(df, rowCount, 0);
for (var row = 0; row < rowCount; ++row)
{
v.Add(matrix[row, column]);
}
df.DefineNewColumn("c" + column, v);
}
return(df);
}
public static DataFrame Create <T>(T[] array, int rowCount = int.MaxValue, int columnCount = int.MaxValue, bool transpose = false)
{
var df = new DataFrame();
if (columnCount == int.MaxValue)
{
if (rowCount == int.MaxValue)
{
columnCount = 1;
rowCount = array.Length;
}
else
{
columnCount = array.Length / rowCount;
if (columnCount == 0 || array.Length % rowCount != 0)
{
++columnCount;
}
}
}
else
{
if (rowCount == int.MaxValue)
{
rowCount = array.Length / columnCount;
if (rowCount == 0 || array.Length % columnCount != 0)
{
++rowCount;
}
}
}
var data = new DataFrameColumn <T> [columnCount];
for (int column = 0; column < columnCount; ++column)
{
data[column] = new DataFrameColumn <T>(df, rowCount, 0);
}
for (int column = 0; column < columnCount; ++column)
{
var v = data[column];
for (int row = 0; row < rowCount; ++row)
{
int index;
if (transpose)
{
index = (row * columnCount + column) % array.Length;
}
else
{
index = (column * rowCount + row) % array.Length;
}
v.Add(array[index]);
}
}
for (var column = 0; column < columnCount; ++column)
{
df.DefineNewColumn("c" + column, data[column]);
}
return(df);
}
