Date range in a local includes 1960

[Beth Crankshaw]

Hi Community,

I am trying to specify a date range in my twoway graph (which uses locals), but despite my date range in the data being January 2015 - January 2021, the graph is scaled from 1960. I have played around with altering the graph directly with no luck. There is definitely no year<2015 in my data.
I thought the issue may be with my date formats, so have included my code used for this too.

gen modate = ym(YEAR, MONTH)
format modate %tm

local naive_tests total_naive modate if TOWN == "Wonderland"
local target_tests total_target modate if CLINIC =="Fairy Clinic"
twoway mspline `naive_tests' || mspline `target_tests', ttitle("") ytitle("Test count") tlabel(2015m1(10)2021m1, format(%tm) labsize(small) angle() nogrid) ///
ylabel(, nogrid)

Graph.gph

Thanks in advance for any assistance!

[Jared Greathouse]

Present your dataset using dataex please.

[Andrew Musau]

Your graph is not visible. 1st January 1960 has the SIF value 0, so by default it appears that twoway selects this as the starting point.

 di %td 0

Res.:

. di %td 0
01jan1960

To restrict the axis, you need the -range()- suboption within -xscale()-, where you specify the starting point. Assuming this is 1st Aug 1999:

xsc(r(`=td(1aug1999)' .))