Creating an "everything ANDNOT this" collection

I cannot figure out how to create a collection that contains everything in my library except the Perseus collection (which is huge).

Can anyone tell me how to do that? What would I write in the rule? It should be something like "everything ANDNOT publisher:perseus".

Help?

Thanks, Joe

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Levi Durfey

Try this: rating:<=5 ANDNOT publisher:perseus

Randy W. Sims

I use "* -publisher:perseus"

All Resources = 3432

publisher:perseus = 819

* -publisher:perseus = 2613

Explanation: publisher:perseus finds everything where perseus is the publisher. Putting the negation symbol (dash, hyphen, minus) negates the express so it finds everything EXCEPT perseus. There is a bug that manifests in several ways when trying to use an expression that contains a single operand that is negated. Adding the asterisk to the express (which finds 0 or more of any character) is a workaround for that bug.

Rosie Perera

https://community.logos.com/discussion/comment/443627#Comment_443627

You can also omit publisher: in this case because the word perseus on its own will pick up any resource that mentions perseus in its metadata, and there aren't any other resources that mention that because the Perseus collection ones.

Dave Hooton

https://community.logos.com/discussion/comment/443627#Comment_443627

I use "* -publisher:perseus"

This is very inefficient (can cause hangs, takes several seconds) and I recommend you replace the wildcard in all collections e.g. rating:<=5 -publisher:perseus

Randy W. Sims

https://community.logos.com/discussion/comment/443636#Comment_443636

I use "* -publisher:perseus"

This is very inefficient (can cause hangs, takes several seconds) and I recommend you replace the wildcard in all collections e.g. rating:<=5 -publisher:perseus

Thanks for pointing that out, Dave. I didn't think that through very well. The expressions you and Integ suggested are much more efficient.

Milford Charles Murray

https://community.logos.com/discussion/comment/443642#Comment_443642

Peace! Since collections are "dynamic," would such a collection actually slow down Logos 5?

For example when opening the program? Some Forum posters have mentioned that they have over 100 collections. Does that amount of collections slow the program? If so, when? When starting?

Dave Hooton

https://community.logos.com/discussion/comment/443664#Comment_443664

Does that amount of collections slow the program? If so, when? When starting?

When loading a panel during startup Logos may check the collection(s) it uses e.g. a Resource panel that uses Parallel Resources. Otherwise, collections will be checked after startup. Checking one collection is very fast -> less than 0.1s even for rating:<=5 -publisher:perseus. Checking 100 collections might take 8s or less but is run in the background.

Overall, you would only notice the checking with collections that use a wildcard, as I mentioned previously.

Milford Charles Murray

https://community.logos.com/discussion/comment/443744#Comment_443744

Overall, you would only notice the checking with collections that use a wildcard, as I mentioned previously.

Thank you very much, Dave! I feel better about my extensive collections now! *smile* Peace!

Keep Smiling 4 Jesus :)

Wiki has => http://wiki.logos.com/Example_Collections that includes:

English Library without Perseus

Library Size: 4,096
Collection Size: 1,889 Excludes 825 Perseus by including one collection and excluding another collection
Rule:
Manually Included Items: {Language:English}
Manually Excluded Items: {Perseus}

English Library without Perseus

Library Size: 4,096
Collection Size: 1,889 Excludes 825 Perseus via rule equivalent to including a collection while excluding another
Rule: Language:English -Publisher:Perseus
Manually Included Items: none
Manually Excluded Items: none

Keep Smiling [:)]

George Somsel

https://community.logos.com/discussion/comment/443744#Comment_443744

Does that amount of collections slow the program? If so, when? When starting?

When loading a panel during startup Logos may check the collection(s) it uses e.g. a Resource panel that uses Parallel Resources. Otherwise, collections will be checked after startup. Checking one collection is very fast -> less than 0.1s even for rating:<=5 -publisher:perseus. Checking 100 collections might take 8s or less but is run in the background.

Overall, you would only notice the checking with collections that use a wildcard, as I mentioned previously.

I note that "ANDNOT perseus" doesn't work, but the wildcard "*" (asterisk) with it does. It takes longer than usual though.

NB.Mick

https://community.logos.com/discussion/comment/444287#Comment_444287

I note that "ANDNOT perseus" doesn't work, but the wildcard "*" (asterisk) with it does. It takes longer than usual though.

This is because the rule parser doesn't iomplicitly assume "all" when you have a rule that just gives "minus". The * wildcard stands for all, but seems to be poorly implemented perfomancewise, that's the reason for supplying other, faster ways of selecting all, such as rating:>=0