I'm a beginner..I wrote something like this:
engine.Evaluate("library(ggplot2)");
engine.Evaluate("data(mpg)");
DataFrame df = engine.GetSymbol("mpg").AsDataFrame();
for (int rowIndex = 0; rowIndex < df.RowCount; rowIndex++)
{
for (int colIndex = 0; colIndex < df.ColumnCount; colIndex++)
{
Console.Write(df[rowIndex, colIndex].ToString() + " ");
}
Console.Write(Environment.NewLine);
}
manufacturer model displ year cyl trans drv cty hwy fl class
1 audi a4 1.8 1999 4 auto(l5) f 18 29 p compact
2 audi a4 1.8 1999 4 manual(m5) f 21 29 p compact
3 audi a4 2.0 2008 4 manual(m6) f 20 31 p compact
4 audi a4 2.0 2008 4 auto(av) f 21 30 p compact
...1 2 1.8 1999 4 4 2 18 29 4 2
1 2 1.8 1999 4 9 2 21 29 4 2
1 2 2 2008 4 10 2 20 31 4 2
1 2 2 2008 4 1 2 21 30 4 2
....