How can we use function expressions within operators in Rapidminer?

amit_pathak

Hi, I am using a function expression in the generate macro operator as defined below.

`date_str_custom(date_now(),"EEE, MMM d, yyyy h:mm a")`

However, I would like to use this at various places within the process. I have put up email alerts throughout the process for different stages and I would want to capture this timestamp and add it to the email. Currently, I am creating a new generate macro operator before an email alert. Instead, it would be great if there is a way I can add this function expression just like I can add any macro value within an email body.

Tried `%{date_str_custom(date_now(),"EEE, MMM d, yyyy h:mm a")}` but it does not work. I understand it is a way to call macros.

Any way we can do this or maybe something better I can do?

MartinLiebig

Hi,

you can just create a macro with this:

date_str_custom(date_now(),"EEE, MMM d, yyyy h:mm a")

and then use

eval(%{macroName})

That does it.

You can even go crazy and change the time zone dynamically.

BR,

Martin