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Tricks to manage the available memory in an R session
...uces the memory footprint significantly. Say I have 4 million records with 110 variables (and I do.) Example:
# library(rms); library(Hmisc) for the cph,and rcs functions
Mayo.PrCr.rbc.mdl <-
cph(formula = Surv(surv.yr, death) ~ age + Sex + nsmkr + rcs(Mayo, 4) +
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Using print statements only to debug
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Matt JoinerMatt Joiner
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Send email using the GMail SMTP server from a PHP page
...n-standard port
$swift =& new Swift(new Swift_Connection_SMTP("217.147.94.117", 419));
//Connect to Gmail (PHP5)
$swift = new Swift(new Swift_Connection_SMTP(
"smtp.gmail.com", Swift_Connection_SMTP::PORT_SECURE, Swift_Connection_SMTP::ENC_TLS));
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What do Clustered and Non clustered index actually mean?
... F736s, you would start by locating the row of bookshelves that is labeled 001-099 or something like that. (This endcap sign at the end of the stack corresponds to an "intermediate node" in the index.) Eventually you would drill down to the specific shelf labelled 005.7450 - 005.7600, then you would...
Remove local git tags that are no longer on the remote repository
...tags origin
That returns a list of hashes and friendly tag names, like:
94bf6de8315d9a7b22385e86e1f5add9183bcb3c refs/tags/v0.1.3
cc047da6604bdd9a0e5ecbba3375ba6f09eed09d refs/tags/v0.1.4
...
2f2e45bedf67dedb8d1dc0d02612345ee5c893f2 refs/tags/v0.5.4
You could certainly put ...
Dynamically creating keys in a JavaScript associative array
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Orion EdwardsOrion Edwards
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Maximum number of threads per process in Linux?
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Robert GambleRobert Gamble
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What is the difference between the Eclipse Package Explorer and the Eclipse Project Explorer?
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McGarnagle
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answered Jul 15 '12 at 22:23
mmsengmmse...
Text overflow ellipsis on two lines
.../////////////////wDWRdwAAAP90Uk5TgsRjMZXhS30YrvDUP3Emow1YibnM9+ggOZxrBtpRRo94gxItwLOoX/vsHdA2yGgL8+TdKUK8VFufmHSGgAQWJNc9tk+rb5KMCA8aM0iwpWV6dwP9+fXuFerm3yMs0jDOysY8wr5FTldeoWKabgEJ8RATG+IeIdsn2NUqLjQ3OgBDumC3SbRMsVKsValZplydZpZpbJOQco2KdYeEe36BDAL8/vgHBfr2CvTyDu8R7esU6RcZ5ecc4+Af3iLcJSjZ1ivT0S/PMs3...
Rails migrations: self.up and self.down versus change
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110
For many operations rails can guess what is the inverse operation (without problems). For exam...