# # $Id: mgr.dem,v 1.2.2.1 1999/10/11 13:24:57 lhecking Exp $ # pause 0 "Watch some cubic splines" set samples 50 set xlabel "Angle (deg)" set ylabel "Amplitude" set key box set title "Brag-Reflex -- Peak only" plot "big_peak.dat" title "Rate" with errorbars, \ "" smooth csplines t "Rate" pause -1 "You would draw smaller bars? <CR>" set bars small replot set bars large # pause -1 "An approx-spline demo <CR>" set samples 300 set xlabel "Time (sec)" set ylabel "Rate" set title "Ag 108 decay data" plot "silver.dat" t "experimental" w errorb, \ "" smooth csplines t "cubic smooth" # error is column 3; weight larger errors less # start with rel error = 1/($3/$2) pause -1 "Now apply a smoothing spline, weighted by 1/rel error <CR>" S=1 plot "silver.dat" t "experimental" w errorb,\ "" u 1:2:(S*$2/$3) smooth acsplines t "acspline Y/Z" pause -1 "Make it smoother by changing the smoothing weights <CR>" plot "silver.dat" t "rate" w errorb,\ "" u 1:2:($2/($3*1.e1)) sm acs t "acspline Y/(Z*1.e1)",\ "" u 1:2:($2/($3*1.e3)) sm acs t " Y/(Z*1.e3)",\ "" u 1:2:($2/($3*1.e5)) sm acs t " Y/(Z*1.e5)" pause -1 "Accentuate the relative changes with a log-scale <CR>" set logscale y replot pause -1 "Now approximate the data with a bezier curve between the endpoints<CR>" set nologscale y plot "silver.dat" t "experimental" w errorb,\ "" smooth sbezier t "bezier" pause -1 "You would rather use log-scales ? <CR>" set logscale y plot "silver.dat" t "rate" w errorb, \ "" smooth sbezier t "bezier" # pause -1 "Errorbar demo <CR>" set samples 100 set nologscale set xlabel "Resistance [Ohm]" set ylabel "Power [W]" set title "UM1-Cell Power" n(x)=1.53**2*x/(5.67+x)**2 plot [0:50] "battery.dat" t "Power" with xyerrorbars, n(x) t "Theory" w lines pause -1 "Would you like boxes? <CR>" plot [0:50] "battery.dat" t "Power" with boxxy, n(x) t "Theory" w lines pause -1 "Only X-Bars? <CR>" plot [0:50] "battery.dat" u 1:2:3 t "Power" w xerr, n(x) t "Theory" w lines pause -1 "Only Y-Bars? <CR>" plot [0:50] "battery.dat" u 1:2:4 t "Power" w yerr, n(x) t "Theory" w lines pause -1 "Logscaled? <CR>" set logscale y plot [0:50] "battery.dat" u 1:2:4 t "Power" w yerr, n(x) t "Theory" w lines pause -1 "X as well? <CR>" set logscale xy plot [1:50] "battery.dat" t "Power" w xyerr, n(x) t "Theory" w lines pause -1 "If you like bars without tics <CR>" set nologscale set bars small plot [0:50] "battery.dat" t "Power" with xyerrorbars, n(x) t "Theory" w lines pause -1 "X-Bars only <CR>" plot [0:50] "battery.dat" u 1:2:3 t "Power" w xerr, n(x) t "Theory" w lines pause -1 "Y-Bars only <CR>" plot [0:50] "battery.dat" u 1:2:4 t "Power" w yerr, n(x) t "Theory" w lines reset