R Under development (unstable) (2023-11-08 r85496 ucrt) -- "Unsuffered Consequences"
Copyright (C) 2023 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> ###
> ### polyfit.R  +++ Test suite +++
> ###
> 
> 
> test.polyfit <- function(input, expected) {
+    output <- do.call(getFromNamespace("polyfit", "pracma"), input)
+    identical(all.equal(output,
+                        expected,
+                        tolerance=1e-7),
+              TRUE
+     )
+ }
> 
> polyfit.expected.n1  <- c(1, 0)
> polyfit.expected.n23 <- c(0, 1, 1, 1)
> polyfit.expected.n4  <- c(-1, 0, 7, 0, 0) / 6
> polyfit.expected.mat <- c(0, 1, -14, 65, -112, 60) / 12
> 
> test.polyfit(list(x=c(1,2,3), y=c(1,2,3)), polyfit.expected.n1)
[1] TRUE
> test.polyfit(list(x=c(-2,-1,0,1,2), y=c(3,1,1,3,7), n=3), polyfit.expected.n23)
[1] TRUE
> test.polyfit(list(x=c(-2,-1,0,1,2), y=c(2,1,0,1,2), n=4), polyfit.expected.n4)
[1] TRUE
> test.polyfit(list(x=matrix(1:6, nrow=2, ncol=3, byrow=TRUE),
+                   y=matrix(c(0,0,1,1,0,0), nrow=2, ncol=3, byrow=TRUE),
+                   n=5), polyfit.expected.mat)
[1] TRUE
> 
> 
> proc.time()
   user  system elapsed 
   0.17    0.04    0.20