Check curve parameters too, gets partial matching as side benefit

[eddelbuettel]

Thanks for posting such a nice and concise 'minimally complete and verifiable example' in #201, @m-muecke. With this small change of also dispatching to match.arg for curveparams, we actually get partial matching in a controlled way. And the example just works:

edd@paul:~/git/rquantlib(fix/issue201)$ Rscript misc/issue201.R | head
$table
           date zeroRates discount
1    2026-07-27 0.0143806 1.000000
2    2026-07-28 0.0143926 0.999961
3    2026-07-29 0.0144000 0.999921
4    2026-07-30 0.0144073 0.999882
5    2026-07-31 0.0144145 0.999842
6    2026-08-01 0.0144217 0.999802
7    2026-08-02 0.0144290 0.999763
8    2026-08-03 0.0144362 0.999723
Error in print.default(m, ..., quote = quote, right = right, max = max) : 
  ignoring SIGPIPE signal
Calls: <Anonymous> ... <Anonymous> -> print.data.frame -> print -> print.default
Execution halted
edd@paul:~/git/rquantlib(fix/issue201)$ 

Piped into head which gets us the SIGPIPE noise. If I add a str() around the result instead things are nicer:

edd@paul:~/git/rquantlib(fix/issue201)$ Rscript misc/issue201.R 
List of 1
 $ table:'data.frame':  3651 obs. of  3 variables:
  ..$ date     : Date[1:3651], format: "2026-07-27" "2026-07-28" "2026-07-29" "2026-07-30" ...
  ..$ zeroRates: num [1:3651] 0.0144 0.0144 0.0144 0.0144 0.0144 ...
  ..$ discount : num [1:3651] 1 1 1 1 1 ...
 - attr(*, "class")= chr "DiscountCurve"
edd@paul:~/git/rquantlib(fix/issue201)$ 

[eddelbuettel]

Also: I generally avoid making 'whitespace only' changes but this is a fairly old file and some lines just weren't indented right. At GitHub use 'hide whitespace' in diff settings i.e.