Iterate over days of year to make a list/graph

Question

How do I make a graph of a function which takes a date as input, over a full year?

[Edit] To clarify, I have an existing function, say f, which takes a date as input and returns a value between 0 and 90. I want to plot this function over the year 2016, so plot the value for every day in 2016.

My try

I can reduce this question to making a list like

Table[
 {d, f[d]},
 {d, DateObject[{2016, 1, 1}], DateObject[{2016, 12, 31}]}
 ]

and then doing ListPlot or something, but obviously I need to give Mathematica at least the step size (one day) and find a way to add a day to a date in such an iteration.

Maybe DateRange is an idea to make a list of dates of a year, but not sure how I would attach my function to that properly.

PS I'm on Mathematica 11.0

[Edit] As per request, my own function is a little big too put here, but for example function

g[d_] := (
  DateValue[d, "Month"] + DateValue[d, "Day"]
  )

Will do, I guess.

Answer 1

solution with DateListPlot

Clear[f,g]
f = Function[x, DateObject[{2016, 1, 1}] + Quantity[(x-1), "Days"]]
g[d_] := (DateValue[d, "Month"] + DateValue[d, "Day"])
listOfDates = Table[{f[d], g[f[d]]}, {d, 1, 365}];

DateListPlot[listOfDates]    

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ListPlot[Table[g[f[d]], {d, 1, 365}]]   

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Here is a function which you give 1 to return the first day 1 in 2016 ect.

use Quantity

f = Function[x, DateObject[{2016, 1, 1}] + Quantity[(x-1), "Days"]]

Table[{f[d], g[f[d]]}, {d, 1, 365}]

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