Plotting columns by caaing their header with GnuPlot
I have file of this format 

    x y1 y2 y3 ei1 ei2 ei3 es1 es2 es3
    1 4 5 4 7 7 2 4 7 7
    2 7 3 3 3 8 3 3 3 8
    3 2 1 4 4 9 6 4 4 9

I want to produce plots similar to what the following command would
give

    plot "filename" using 1:2:5:8  with yerrorbars

but using the columns headers(`x`, `y1`, `ei1` and `es1`) to call them.
How can this be done?
Plotting columns by caaing their header with GnuPlot
===

I have file of this format 

    x y1 y2 y3 ei1 ei2 ei3 es1 es2 es3
    1 4 5 4 7 7 2 4 7 7
    2 7 3 3 3 8 3 3 3 8
    3 2 1 4 4 9 6 4 4 9

I want to produce plots similar to what the following command would
give

    plot "filename" using 1:2:5:8  with yerrorbars

but using the columns headers(`x`, `y1`, `ei1` and `es1`) to call them.
How can this be done?