World: r3wp
[Core] Discuss core issues
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Terry 7-May-2010 [16491] | no matter.. can't search by value in Redis either.. i have a work around |
Steeve 7-May-2010 [16492x2] | or create a second map! with reversed key-values |
ok, you can't | |
Terry 7-May-2010 [16494x3] | I'm going to try more test.. but if this is accurate, this would be nearly 10x faster than Redis |
great.. there goes my weekend :( | |
thanks for your help | |
Henrik 7-May-2010 [16497] | small detail that may be useful: >> series? make map! [] == false |
BrianH 7-May-2010 [16498] | DP: :DELTA-PROFILE, meaning change in profile. It's R3's built-in profiler. R3 also has a built-in timer, DT: :DELTA-TIME. |
Maxim 7-May-2010 [16499] | happy to have helped :-) |
BrianH 7-May-2010 [16500] | Terry, try FIND VALUES-OF map value, if you can afford to trade memory overhead for the loop. |
Terry 7-May-2010 [16501x2] | can you return the key somehow? |
after some testing strings as keys and values are the way to go.. slightly faster ( to-binary? overhead?) and when you write the db to file, the strings are half the size | |
Graham 9-May-2010 [16503] | How does one sort on the 3 item in a seres? |
Henrik 9-May-2010 [16504] | example? |
BrianH 9-May-2010 [16505] | Use SORT/compare with an integer argument for the index of the records you want compared, and don't forget /skip for the record length. Like this: >> sort/skip/compare [1 5 2 4 3 3 4 2 5 1] 2 2 == [5 1 4 2 3 3 2 4 1 5] |
Sunanda 9-May-2010 [16506x2] | You mean using /skip and /compare to sort a series in sets? s: [1 2 8 a 1 2 6 b 1 2 7 c] ;; three sets of four items sort/skip/compare s 4 [3] ;; sort on the third item == [1 2 6 b 1 2 7 c 1 2 8 a] |
oops --- Brian just beat me to it! | |
Graham 9-May-2010 [16508] | thanks .. can someone update the docs http://www.rebol.com/docs/words/wsort.html |
BrianH 9-May-2010 [16509] | Didn't know you could put the /compare index in a block. Can you specify more than one index? |
Sunanda 9-May-2010 [16510] | Yes you can: sort/skip/compare s 4 [1 2 4 3] == [1 2 8 a 1 2 6 b 1 2 7 c] |
BrianH 9-May-2010 [16511] | Graham, no, noone can update that doc page, it's a permissions issue. All docs updates by anyone other than Carl are on hold. |
Graham 9-May-2010 [16512x2] | someone = Carl |
:) | |
BrianH 9-May-2010 [16514x2] | Ask in chat or CureCode, Carl won't see the request here. |
It's best to ask in CureCode anyways, because the request will stay there where we can find it until the issue is fixed. | |
Graham 9-May-2010 [16516] | some of the browsers allow you to annotate the page so I can see my own notes |
BrianH 9-May-2010 [16517] | But the people who would fix the docs won't see your notes. |
Graham 9-May-2010 [16518x2] | But at least I will ... |
And when we get the permissions to do so, we can then | |
BrianH 9-May-2010 [16520] | OK, good, that way you will remember to submit a CureCode ticket later. |
Henrik 9-May-2010 [16521x2] | >> a: 0.24.26 == 0.24.26 >> poke a 2 155 == 0.155.26 >> a == 0.24.26 ; huh? |
fixed in R3 though. | |
Ladislav 9-May-2010 [16523x7] | >> a: b: 0.24.26 == 0.24.26 >> poke a 2 155 ** Script error: poke does not allow tuple! for its value argument |
if you consider that fixed, then I do agree with you | |
nevertheless, the behaviour in R2 looks reasonable too | |
(taking into account, that tuples are immutable) | |
re "ask in chat or CC" - I asked in chat, privately, but do not see any reaction yet, and I added a comment to CC #1571 | |
also: http://eupat.ffii.org/ | |
sorry, misplaced post | |
Henrik 9-May-2010 [16530] | since tuple are not series in R3, then I'd say it's fixed. |
Maxim 10-May-2010 [16531] | tuple aren't immutable in R2 OR R3 >> a: 1.2.34 == 1.2.34 >> a/2: 33 == 33 >> a == 1.33.34 this works in both R2 and R3 |
Steeve 10-May-2010 [16532] | nope, they are >> a: b: 1.2.3 == 1.2.3 >> a/1: 33 == 33 >> a == 33.2.3 >> b == 1.2.3 |
Maxim 10-May-2010 [16533x2] | ok... yeah in that sense. |
they aren't series. | |
Ladislav 10-May-2010 [16535] | tuple aren't immutable in R2 OR R3 - it is discussed in http://www.rebol.net/wiki/Identity#Expressions_modifying_their_values Tuples are exactly as mutable as integers in R2 as well as in R3 |
amacleod 11-May-2010 [16536x2] | BrainH asked: Didn't know you could put the /compare index in a block. Can you specify more than one index? Sunanda says: Yes you can: sort/skip/compare s 4 [1 2 4 3] == [1 2 8 a 1 2 6 b 1 2 7 c] That's great but can you do that with a block of blocks of data.... example: s: [ [1 2 8 a] [1 2 6 b] [1 2 7 c]] ] |
remove extra ] | |
Maxim 11-May-2010 [16538] | use a compare function for that |
amacleod 11-May-2010 [16539] | So nothing as easy as Sunanda's example built into rebol? |
Sunanda 11-May-2010 [16540] | To turn Maxim's comment into an example: sort/compare s func [a b] [ == [ [1 2 6 b] [1 2 7 c] [1 2 8 a] ] s |
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