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“R cannot be resolved to a variable”? [duplicate]
...
Those are fun to find, huh? :) If you can't get R.java to build in the first place, it's usually a typo or other problem in an XML layout file. Using a capital letter in your XML filenames will also cause that problem. If R.java do...
What happens if you don't commit a transaction to a database (say, SQL Server)?
...s stuff works or you will be stumped by what sql does, many a time.
Have fun! GJ.
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What's the fastest way to merge/join data.frames in R?
...bases as well.
library(plyr)
library(data.table)
library(sqldf)
set.seed(123)
N <- 1e5
d1 <- data.frame(x=sample(N,N), y1=rnorm(N))
d2 <- data.frame(x=sample(N,N), y2=rnorm(N))
g1 <- sample(1:1000, N, replace = TRUE)
g2<- sample(1:1000, N, replace = TRUE)
d <- data.frame(d1, g1,...
Get a random item from a JavaScript array [duplicate]
....length-1)];
Or to shuffle an entire array:
// use underscore's shuffle function
var firstRandomElement = _.shuffle(randomArray)[0];
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How to replace spaces in file names using a bash script
.... And this whole question is about micro-optimizing more or less. Isn't it fun, after all? ;-)
– Michael Krelin - hacker
Apr 26 '10 at 18:33
17
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NPM doesn't install module dependencies
...ulate a question, hopefully the community has the knowledge to solve. Have fun!
– allprog
Jul 17 '17 at 14:17
One addi...
Perl build, unit testing, code coverage: A complete working example
...tTestCall3, "false", "argumentTest() IS false test");
# Test argumentTest(123)
my $argumentTestCall4 = HelloPerlBuildWorld::argumentTest(123);
is($argumentTestCall4, "unknown", "argumentTest() IS unknown test");
Now back up in your top level project directory, create a text file named "Build.PL"...
Changing overflow icon in the action bar
...nApp"
android:theme="@style/AppTheme">
</application>
Have fun.@.@
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Update multiple columns in SQL
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I tried with this way and its working fine :
UPDATE
Emp
SET
ID = 123,
Name = 'Peter'
FROM
Table_Name
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SQL Server - where is “sys.functions”?
... time.
I'm not sure what Microsoft's rationale is for not including a sys.functions equivalent in SQL Server 2005 (or SQL Server 2008, as far as I can tell), but it's easy enough to roll your own:
CREATE VIEW my_sys_functions_equivalent
AS
SELECT *
FROM sys.objects
WHERE type IN ('FN', 'IF', 'TF')...