[Gnuplot-info] sprintf

[Patrick D. <pd...@gm...>]

Hello,

When I use:
set table "0f_Lor_fitted.asc" ; plot [x_min:x_max] '+' u 1:(ampl*Lor_D(x-x0,W)+offset+y_lin(x-x0,slope)) with table ; unset table

I get a proper file.
But, when I do (to get more control on the data format)

set table "0f_Lor_fitted.asc" ; plot [x_min:x_max] '+' u (sprintf("%g,$1)):(ampl*Lor_D(x-x0,W)+offset+y_lin(x-x0,slope)) with table ; unset table

I get:
nan
instead of the expected value.

I thought that I did like it is described in the manual.
What did I miss?

Thank

===========================================================================
 Patrick DUPRÉ                                 | | email: pd...@gm...
 Laboratoire de Physico-Chimie de l'Atmosphère | |
 Université du Littoral-Côte d'Opale           | |
 Tel.  (33)-(0)3 28 23 76 12                   | | Fax: 03 28 65 82 44
 189A, avenue Maurice Schumann                 | | 59140 Dunkerque, France
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