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Apply a function to every row of a matrix or a data frame
...to apply the function to each row of the matrix and get a n-vector. How to do this in R?
6 Answers
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What is the best data type to use for money in C#?
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Amazing answer, and I don't feel it needs further explanation since it completely answers the question. The link to MSDN documentation is a bonus as far as I'm concerned. Bravo!
– trnelson
May 11 '16 at 18:33...
Yellow fade effect with JQuery
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I saw the demo in the jquery site docs.jquery.com/UI/Effects/Highlight#overview I have tried in my code but does not do anything. Do I need to download any extra. It says dependencies: Effects Core. It is this another plugin.
– Sergio d...
Downloading an entire S3 bucket?
I noticed that there doesn't seem to be an option to download an entire S3 bucket from the AWS Management Console.
29 Answe...
Explain the use of a bit vector for determining if all characters are unique
I am confused about how a bit vector would work to do this (not too familiar with bit vectors). Here is the code given. Could someone please walk me through this?
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python list in sql query as parameter
...plain SQL string. That's absolutely fine for integers, but if we wanted to do it for strings we get the escaping issue.
Here's a variant using a parameterised query that would work for both:
placeholder= '?' # For SQLite. See DBAPI paramstyle.
placeholders= ', '.join(placeholder for unused in l)
q...
.NET Format a string with fixed spaces
Does the .NET String.Format method allow placement of a string at a fixed position within a fixed length string.
10 Answers...
Android: combining text & image on a Button or ImageButton
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If you go this route, you do not want to just use a simple drawable for the background. Use a StateListDrawable (usually via <selector> XML file in res/drawable/), so you can define backgrounds for the various states (normal, pressed, focused, d...
Making a Sass mixin with optional arguments
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A DRY'r Way of Doing It
And, generally, a neat trick to remove the quotes.
@mixin box-shadow($top, $left, $blur, $color, $inset:"") {
-webkit-box-shadow: $top $left $blur $color #{$inset};
-moz-box-shadow: $top $left $blur $color #...
Rails I18n validation deprecation warning
... possible values are:
false: if you
want to skip the locale validation
don't care about locales
true: if you
want the application to raise an error if an invalid locale is passed (or)
want to default to the new Rails behaviors (or)
care about locale validation
Note:
The old default behav...