Question:
How do I make "loglog" plot?

Answer:
You can refer to the following example code to produce similar desired result.

x = (/ 100, 250, 500, 750, 1000, 2500, 5000, 7500, 10000 /)

call msAxis( mf(`xaxis_ticks`), mfLog10(x) )

call msAxis( 2, 4, 2, 4 )

call msXLabel( `10^x`)