Defaults set to small floating point number cause validation error

[Jochen Weile]

Setting the default value of an argument to a floating point number small enough for R to automatically display in scientific format, leads to an argument type validation error.

Example:

> p <- add_argument(p, "--cutoff", default=0.0005, help="Example cutoff")
> args <- parse_args(p)
Error in (function (object, class, nargs)  : 
  Invalid argument value: expecting numeric but got: (5e-04).

> p <- add_argument(p, "--cutoff", default=5e-4, help="Example cutoff")
> args <- parse_args(p)
Error in (function (object, class, nargs)  : 
  Invalid argument value: expecting numeric but got: (5e-04).

‌

[David Shih]

I can’t reproduce this.

library(argparser)
p <- arg_parser("test")
p <- add_argument(p, "--cutoff", default=0.0005, help="Example cutoff")
args <- parse_args(p, c("--cutoff", "5e-04"))

gives

> args
[[1]]
[1] FALSE

$help
[1] FALSE

$opts
[1] NA

$cutoff
[1] 5e-04

as expected.

Try updating your package to the master head following the README’s instructions – I have not released the updates yet.

I’ll prepare a new release soon.

[David Shih]

Submitted to CRAN.