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R apply function with multiple parameters
...riedman) you can use mapply as follows:
vars1<-c(1,2,3)
vars2<-c(10,20,30)
mult_one<-function(var1,var2)
{
var1*var2
}
mapply(mult_one,vars1,vars2)
which gives you:
> mapply(mult_one,vars1,vars2)
[1] 10 40 90
...
How does one make an optional closure in swift?
...
answered Jun 24 '14 at 20:46
CezarCezar
49.8k1616 gold badges8383 silver badges8686 bronze badges
...
Tooltips for cells in HTML table (no Javascript)
...rder-width:1px;
border-color:red;
padding:3px;
color:red;
top:20px;
left:20px;
}
.CellWithComment:hover span.CellComment{
display:block;
}
<table id="MyTable">
<caption>Cell 1,2 Has a Comment</caption>
<thead>
<tr>
<td>H...
Sample random rows in dataframe
...
First make some data:
> df = data.frame(matrix(rnorm(20), nrow=10))
> df
X1 X2
1 0.7091409 -1.4061361
2 -1.1334614 -0.1973846
3 2.3343391 -0.4385071
4 -0.9040278 -0.6593677
5 0.4180331 -1.2592415
6 0.7572246 -0.5463655
7 -0.8996483 0.4231117
8 ...
Why there is no “Home” button in iPad simulator in iOS 5.1 SDK?
...oying
– Chris Chen
Mar 31 '12 at 15:20
11
You hold your mouse with both hands? :)
...
MySQL load NULL values from CSV data
...
Jacob
2,20311 gold badge99 silver badges1616 bronze badges
answered May 11 '11 at 17:59
Duncan LockDuncan Loc...
How to manually deprecate members
... |
edited Jan 2 '19 at 20:55
answered Aug 20 '14 at 13:40
...
Inner text shadow with CSS
...t text effects.
– Michael Trouw
Jul 20 '12 at 22:54
That's cool in chrome, I'm struggling to do an alternative fall-ba...
how to find host name from IP with out login to the host
...
Use nslookup
nslookup 208.77.188.166
...
Non-authoritative answer:
166.188.77.208.in-addr.arpa name = www.example.com.
share
|
improve this...
LinkedBlockingQueue vs ConcurrentLinkedQueue
...edQueue?
– Adamski
Sep 15 '09 at 12:20
27
When you need to access the queue from a lot of threads...