title: How to set two different coordinates sytem for x and y axis in the matplotlib.pyplot.text() function?
body: <p>I know that the positioning of the text with the <code>matplotlib.pyplot.text()</code> has a <code>transform</code> keyword used to set the text positionning in data or axis coordinates.</p>
  
  <p>However, I would like to position the text in my plot using the data coordinates in x, AND the axis coordinates for y. </p>
  
  <p>The reason is that if I change the view of my plot (change of x_axis and y_axis view limits), I would like that my text appears always at the same vertical position in my plot, while the horizontal positioning respects the data coordinate.</p>
  
  <p>Is it possible to do it simple?</p>