On Mon, Aug 1, 2011 at 4:43 PM, Jason Grout jason-s...@creativetrax.com wrote:
On 8/1/11 4:05 PM, William Stein wrote:
On Mon, Aug 1, 2011 at 2:28 PM, Spencermalibuworkc...@gmail.com wrote:
Alright, it took a lot of rewrites but the optimizer is up and
running, and its really quick (the slow part is looking up and
processing stock info). It allows for one to put in an accepted risk
free rate (as a proportion not a percent), or an index of acceptable
risk [0,inf] and then the program will find your proportions. Short
selling is allowed and there is no way to turn it off yet (limiting
the answers to positive values would make the calculation much more
complicated).
Think I'll quickly pop in a confidence interval function then maybe go
on to spread unless there is something else I should do first. I also
want to take some time to put CovMatrix up for review so that I don't
have to copy paste it into every worksheet I make.
Hi,
Using pastebin.com, I pasted this file:
def profit(n):
return 1.1*n
Then I clicked on Raw to get this URL:
http://pastebin.com/raw.php?i=Y6zkrjUp
In a worksheet I can now paste the following, the file I put at
pastebin then gets loaded as a .sage file (so with full Sage
preparsing):
f = get_remote_file(http://pastebin.com/raw.php?i=Y6zkrjUp;)
import shutil; shutil.move(f, f+'.sage')
load f+'.sage'
Then I can use the code that was defined in that paste. Anybody else
can do the same.
You can edit the code, but then I think it has to be a new paste,
which has a new URL.
If you use gist (by github), which keeps track of filenames, you can shorten
your instructions.
Go to https://gist.github.com/
name this file: myfile.sage
type your code in.
Create public gist
Then click on raw to get the url, for example:
https://raw.github.com/gist/1119259/199adeabc1e4fdefa1ccac395149d96c65b9f938/myfile.sage
Then in sage:
load
'https://raw.github.com/gist/1119259/199adeabc1e4fdefa1ccac395149d96c65b9f938/myfile.sage'
As a bonus, your paste is version controlled and people can make branches of
it.
Very, very nice!
Thanks,
Jason
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--
William Stein
Professor of Mathematics
University of Washington
http://wstein.org
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