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Paste multiple columns together
...e matrix conversion. Also, instead a for loop we could just use setdiff in order to remove unwanted columns
cols <- c('b','c','d')
data$x <- Reduce(function(...) paste(..., sep = "-"), data[cols])
data[setdiff(names(data), cols)]
# a x
# 1 1 a-d-g
# 2 2 b-e-h
# 3 3 c-f-i
Alternative...
Xcode source automatic formatting
...ly does indentation. What about moving braces, taking care of line breaks, etc?
– Peter Ajtai
Apr 30 '12 at 0:56
15
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INSTALL_FAILED_NO_MATCHING_ABIS when install apk
...esterday, it was missing altogether. Today, I had to add the x86 option in order to make app run. Why on earth is xamarin or android suddenly using different default values? This is so frustrating! Anyway, thanks to people like you, I can overcome and get on with work. Thanks a lot, and +1 for you!
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How to justify a single flexbox item (override justify-content)
...to to align the child to the left.
.container {
height: 100px;
border: solid 10px skyblue;
display: flex;
justify-content: flex-end;
}
.block {
width: 50px;
background: tomato;
}
.justify-start {
margin-right: auto;
}
<div class="container">
<div class...
Error: «Could not load type MvcApplication»
...our project and make sure it is set to 'bin\'. The problem is that the AspNetCompiler cannot find the files if they are not in the default location.
Another side effect of changing the output folder is that you will not be able to debug your code and it comes up with a message saying that the Assem...
Can you overload controller methods in ASP.NET MVC?
... can only have unique name's. So HTTP does not implement polymorphism.
In order to fix the same we need to use "ActionName" attribute.
public class CustomerController : Controller
{
//
// GET: /Customer/
public ActionResult LoadCustomer()
{
return C...
What does it mean if a Python object is “subscriptable” or not?
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
...
How to get a tab character?
... text any text place inside the tag will preserve spaces, line breaks, tab etc. It usually will be displayed in a fixed width font type like Courier
– Raymund
Aug 5 '15 at 4:16
2
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How to convert SSH keypairs generated using PuTTYgen (Windows) into key-pairs used by ssh-agent and
...to set up key authentication on a remote that uses OpenSSH format. But in order to use a Putty-generated key on a Linux client, this answer is insufficient. I followed the accepted answer and it worked splendidly.
– wberry
Aug 8 '16 at 21:59
...
Apply CSS Style to child elements
...ild tag inside the div.parent like <a>, <input>, <label> etc.
code : div.parent * {color: #045123!important;}
You can also remove important, its not required
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