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How to count TRUE values in a logical vector
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@YossiFarjoun Yes, and it's in my answer. This are examples why it won't work. My sollution is sum(z, na.rm = TRUE)
– Marek
May 21 '19 at 13:36
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How to download a file from server using SSH? [closed]
...edu:foobar.txt /local/dir
replacing the username, host, remote filename, and local directory as appropriate.
If you want to access EC2 (or other service that requires authenticating with a private key), use the -i option:
scp -i key_file.pem your_username@remotehost.edu:/remote/dir/foobar.txt /l...
Google Play on Android 4.0 emulator
How can I install the Google Play .apk onto my Android 4.0 emulator?
8 Answers
8
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Why is “Set as Startup” option stored in the suo file and not the sln file?
...ting should be stored in the solution file so it's shared across all users and part of source code control. Since we don't check in the suo file, each user has to set this separately which seems strange.
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Make sure only a single instance of a program is running
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The following code should do the job, it is cross-platform and runs on Python 2.4-3.2. I tested it on Windows, OS X and Linux.
from tendo import singleton
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running
The latest code version is available singleto...
simulate background-size:cover on or
...r a while, but I came across a great solution that doesn't use any script, and can achieve a perfect cover simulation on video with 5 lines of CSS (9 if you count selectors and brackets). This has 0 edge-cases in which it doesn't work perfectly, short of CSS3-compatibility.
You can see an example h...
What's the safest way to iterate through the keys of a Perl hash?
...ng each may in some way have unintended side effects. So, is that true, and is one of the two following methods best, or is there a better way?
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Code for decoding/encoding a modified base64 URL
I want to base64 encode data to put it in a URL and then decode it within my HttpHandler.
5 Answers
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Disadvantages of Test Driven Development? [closed]
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Several downsides (and I'm not claiming there are no benefits - especially when writing the foundation of a project - it'd save a lot of time at the end):
Big time investment. For the simple case you lose about 20% of the actual implementatio...
VIM + JSLint?
...tegration or do what I did:
Download http://jslint.webvm.net/mylintrun.js and http://www.jslint.com/fulljslint.js
and put them in a directory of your choice.
Then add the following line to the beginning of mylintrun.js:
var filename= arguments[0];
and change last line of code in mylintrun.js (...