I'm adapting a system based on component files to take advantage of mapped files. Because a mapped file is passed by reference, you can run into problems by...
Using a 5 million element vector to compare a mapped file vs a component in a file, (all timings very rough): +/[]MAP File is significantly better than ...
I have very much the same observations. In fact, this is the whole point of mapped files, namely: Reading in something big to access a little bit of it is much...
Brooke Allen
brookea@...
Nov 3, 2003 8:24 pm
213
If this is not already identified as a special case, I nominate it: drop transpose take which I often read "recycle" from use and appearance. Eg find unique...
... To avoid confusion (with #MLs and stuff) I would spell it: split transpose mix ... I normally write this nub split[1] mix TABLE.(key1 key2) (I know, it's...
Anyone have a function lying around that generates a GUID? I think there is a Win API call, and there must be a .NET way too. If no one has researched it from...
RE: [dyalogusers] GUID - Globaly Unique Identifier. I hit this one with a hammer ... 'A' []WC 'OleServer' GUIDS <= 'A' []WG 'ClassID' 'TypeLibID' []ex 'A' It...
John Miller
JohnMiller@...
Nov 12, 2003 2:30 am
219
... Sure thing. First, out of .NET, as a d-fn which makes it "cool": guid<-{ CoCreateGuid<-{} // trick to keep the definition local _<-#NA'I...
Thanks Everyone! John: it had vaguely occurred to me that Dyalog must use GUIDs when doing stuff with OLE, but I don't do much along those lines, and didn't...
... Interesting approach! Since I am evil I tried to turn it into a d-fn (v9 or 10): NewGuid<-{ a<-#NS '' (execute 'a' #wc 'OleServer').ClassID } Unfortunately...
Hi APL'ers, I think its great that a discussion group exists! Glad to be a part of it. I consider myself a novice and have recently caught the "APL-fever". The...
Encode/Decode is good for mixed base arithmetic (together with a surprising number of other things). For example, to add yards, feet and inches: yds ft...
Do encode and decode work with non-integer left arguments? n.b. an ox drivers pole is 5 1/2 yards long = the length of an ox plus the length of a plough = the...
I've always been fond of using decode to evaluate polynomials. The value of a polynomial at a given x (forgive my mixing of notation!) is: value = ax*n +...
Everyone, thanks for all that great help in Encode and Decode. I didn't know it was so versatile! So I've been playing with the 2 primitives and I think I came...
Thanks Maria, I tried changing []CT to 1E-17 but no luck. What did work, however, is using 46 instead of 45 as my left hand argument. Although, I don't think...
That number is just too big to fit into a 32-bit integer. Anybody know of any tricks other than just splitting it into two? I guess the strategy would depend...
Thanks again for the assistance on GUIDs. Here is what I'm doing with them: I have been adapting a component file based personal productivity app to take...
Paul, After you've used the GUID stuff in your application, it might be interesting to us if you'd post your experience: which method you ended up using and...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
