Preparation : plot sieve analysis data

For me : two-objectives exercise

• get Raspberry Pi computer working, updated operating system and install "GnuPlot" (plus "xfig" and other mainly unix-world tools)
• create unix shell-scripts and Lisp functions to handle sieve mass-fraction-at-size-range data, then plot with GnuPlot

Outcome...

Notes:

• the horizontal axis scale is logarithmic
• the sub-sieve is plotted as if at 32microns to keep that scale "regular"
• is "cumulative above sieve"

I plotted the example data in Barry Wills' "Mineral Processing Technology" book - the tabular data of Table4.3 in Chapter 4.

Quoted as:

size_range	nom	mass(g)
+250....	250	0.02
-250to+180	180	1.32
-180to+125	125	4.23
-125to+90	90	9.44
-90to+63	63	13.10
-63to+45	45	11.56
-45.....	0	4.87

Proved to be a good exercise.
Hope to use sieve analysis and have own data to process, in refining my/our mineral processing endeavours here in Cornwall.
"groundwork" done...

(R. Smith, 26Jun2025)