@spec check() :: {:ok, String.t()} | {:error, term()}

Check if the installed gnuplot version meets the minimum requirement.

Returns {:ok, version_string} if version >= 6.0.0, or {:error, reason}.

Example

iex> GnuplotEx.Version.check()
{:ok, "6.0.0"}

iex> GnuplotEx.Version.check()
{:error, {:version_too_old, "5.4.0", "6.0.0"}}

@spec get() :: {:ok, String.t()} | {:error, term()}

Get the installed gnuplot version.

Returns {:ok, version_string} or {:error, reason}.

Example

iex> GnuplotEx.Version.get()
{:ok, "6.0.0"}

@spec minimum() :: String.t()

Get the minimum required gnuplot version.

Example

iex> GnuplotEx.Version.minimum()
"6.0.0"