[pstricks] logarithmic scale

[jmpapy]

Dear pstricks users,

does anybody have a clue for plotting the values from a .dat file in 
logarithmic scale without making use of an external program ?

The values to be scaled can be the x's or the y's or both.

For instance I'd want to plot the following data points:
 x      y
1      0.1
10     0.2
10^2   0.3
10^3   0.4
10^4   0.5
10^5   0.6

with x in log scale.

thank you in advance

JM