Thanks Ben, I've stumbled upon time-ticks but initially discarded it as in the project I had in mind the data points need to be uniformly spaced not the time ticks (measurement is made based on other triggers irrelevant of discrete time - believe it or not it has its uses :) ) and time is used for ordering and for x labels. But your examples and pointing to time-ticks showed me some work with time-series which is good point to start with, so thank you. I will play with it but I think it is doable what I have in mind - plot seems to be quite mature.
Greg On Monday, December 28, 2015 at 7:16:17 PM UTC+1, Ben Greenman wrote: > On Mon, Dec 28, 2015 at 5:29 AM, Greg Trzeciak <[email protected]> wrote: > Re: 3 Is there any example of plotting with x axis being the time+date > available? > There's a small example in the docs for the 'plot' package: > http://docs.racket-lang.org/plot/ticks_and_transforms.html#%28def._%28%28lib._plot%2Fmain..rkt%29._ticks-scale%29%29 > > > > Documentation on time ticks is here: > http://docs.racket-lang.org/plot/ticks_and_transforms.html#%28part._.Time_.Ticks%29 > > > > And here's a smaller example: > > > > #lang racket/base > > > (require plot) > > > (define (earnings ms) > (let ([d (seconds->date ms)]) > (expt (date-minute d) 2))) > > > (define (hour->date h) > (date 0 0 h 1 1 2015 0 0 #f 0)) > > > (parameterize ([plot-x-ticks (time-ticks #:number 6 #:formats '("~Mm"))]) > (plot > (function earnings #:label "$$$") > #:x-min (datetime->real (hour->date 2)) > #:x-max (datetime->real (hour->date 3)))) -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
