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))))

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