load dataframe

# Create a 2D matrix:
var matrix = array<float>( 16 ){ [i] [ -1.0 : -1 : 8] + 1.51*i }

# Create a 2D dataframe from the matrix:
var dframe2d = DataFrame( matrix )

# Add row labels:
dframe2d.AddLabels( $row, { 'RR1' => 0, 'R2' => 1, 'RRRR5' => 5 } )
dframe2d.AddLabels( $row, { 'RR1' => 0, 'R2' => 1, 'RRRR5' => 6 } )

# Add column labels:
dframe2d.AddLabels( $column, { 'CC1' => 0, 'C2' => 1, 'CCCCCCCCC3' => 4 } )
dframe2d.AddLabels( $column, { 'CC1' => 0, 'C2' => 1, 'CCCCCCCCC3' => 5 } )

# Add string column:
dframe2d.AddColumn( { 'ABC', 'DEF', 'SSSS', 'Hello\t world!' }, 'String' )

# Add column of arbitrary type:
dframe2d.AddColumn( { {'ABC'}, {'DEF', 'SSSS'}, 'Hello\n world!' }, 'Any' )

# Add integer column:
dframe2d.AddColumn( [ 123, 456, 7890], 'Number' )

# Formated printing:
io.writeln( dframe2d )

# Update one cell:
dframe2d[0,1] = 1000000.23

var col = [0:100:9]
col.transpose()

var col2 = array<int>(9){ [i] [100*i] }
io.writeln( col, col2 )

# Update one column:
dframe2d[1:10,2] += col

# Add the first column to the second:
dframe2d[:,1] += dframe2d[:,0]

io.writeln( dframe2d )

# Print a slice:
dframe2d[1:5,4:].Print()

# Scan cells:
dframe2d[1:5,:3].ScanCells { [value,row,column]
	io.writeln( row, column, value )
}

# Scan rows:
dframe2d[1:5,:3].ScanRows { [value,row]
	io.writeln( row, value )
}

# Scan columns:
dframe2d[1:5,:3].ScanColumns { [value,column]
	io.writeln( column, value )
}


# Create a 3D matrix:
var matrix3d = array<float>(3){ [i] matrix + i }
matrix3d.permute( 2, 1, 0 )

# Create 3D dataframe:
var dframe3d = DataFrame( matrix3d )

#dframe3d.AddLabels( $row, { 'RR1' => 0, 'R2' => 1, 'RRRR5' => 5 } )
io.writeln( dframe3d )