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In R, how to get an object's name after it is sent to a function?
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The old deparse-substitute trick:
a<-data.frame(x=1:10,y=1:10)
test<-function(z){
mean.x<-mean(z$x)
nm <-deparse(substitute(z))
print(nm)
return(mean.x)}
test(a)
#[1] "a" ... this is the side-effect of the print() call
# ... you could have done...
jQuery.ajax handling continue responses: “success:” vs “.done”?
...ype: 'json'
})
.pipe(function(data) {
return data.responseCode != 200 ?
$.Deferred().reject( data ) :
data;
})
.fail(function(data) {
if ( data.responseCode )
console.log( data.responseCode );
});
}
xhr_get('/index').done(function(data) {
// will not run if jso...
What does “all” stand for in a makefile?
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answered Mar 25 '10 at 11:26
P ShvedP Shved
83.1k1414 gold badges113113 silver badges160160 bronze badges
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Is having an 'OR' in an INNER JOIN condition a bad idea?
...ed of an immensely slow query (several minutes on two tables with only ~50,000 rows each, on SQL Server 2008 if it matters), I narrowed down the problem to an OR in my inner join, as in:
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How do I remove the passphrase for the SSH key without having to create a new key?
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2034
Short answer:
$ ssh-keygen -p
This will then prompt you to enter the keyfile location, the ...
What's the difference between belongs_to and has_one?
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answered Sep 28 '10 at 0:53
ryeguyryeguy
58.7k4949 gold badges181181 silver badges254254 bronze badges
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How can I efficiently download a large file using Go?
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answered Jul 27 '12 at 17:50
Steve MSteve M
7,37022 gold badges2222 silver badges2626 bronze badges
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ASP.Net MVC Html.HiddenFor with wrong value
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Darin DimitrovDarin Dimitrov
930k250250 gold badges31503150 silver badges28432843 bronze badges
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Rails: create on has_one association
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edited May 9 '12 at 14:07
answered Oct 1 '10 at 13:59
se...
Validate uniqueness of multiple columns
...be patched?
– Alexey
Jul 16 '12 at 20:09
13
Alexey, validates_uniqueness_of [:user_id, :friend_id...