GUI Parameters: Does the "yx" works as "yx=9" ?

[PiotrMP006]

GUI Parameters: Does the "yx" works as "yx=9" ?

[Igor Pavlov]

yes

[AlexS]

Igor, Is it Possible to find out for which keys the default values in the command line and GUI are different?

[Igor Pavlov]

Command line and gui values must be identical.

[AlexS]

It is clear, just in the help table 19.00 for 7z., switch -m, default value yx = 5

[Igor Pavlov]

yx[N]
x[N]

default level is 5, like x5.
x9, and x are both for level 9.

If you need best compression, you don't need to think about exact number in switch. Just write: x yx

[AlexS]

I think I understood:
if no x, yx keys are specified on the command line, their default value is 5
if only x, yx keys are explicitly indicated in the command line, without values, their default value is 9

[Igor Pavlov]

yes, x means extremum
so x without number sets most extremum mode
x[N] specifies the level of extremum.
default mode without x is 5.
highest value (extremum) is 9.

[AlexS]

Thank you, now everything is clear.