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Equivalent of “throw” in R
How does one "throw" an error in R? I have a function that takes a data frame and some column names and does stuff with them. If the columns don't exist, I want the function to stop and to stop all functions depending on it.
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Python Unicode Encode Error
... while the XML file shows a ' , when I try to print it I get the following error:
9 Answers
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What happens if I define a 0-size array in C/C++?
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"it must actually give an error" - the distinction between "warnings" and "errors" isn't recognized in the standard (it only mentions "diagnostics"), and the only situation where compilation must stop [i.e. the real-world difference between warning an...
Scheduling R Script
...This doesn't work for me. When I try to run the Addin, I get the following errors: Loading required namespace: shiny Failed with error: ‘number of columns of matrices must match (see arg 2)’ Loading required namespace: miniUI Failed with error: ‘number of columns of matrices must match (see ...
Using mixins vs components for code reuse in Facebook React
...n your validator functions on some of your state's properties and store “error'd” properties in a state.errors array so you can highlight corresponding fields.
Source (gist)
define(function () {
'use strict';
var _ = require('underscore');
var ValidationMixin = {
getInitialState: ...
What is the difference between require() and library()?
...quire() unless you actually will be using the value it returns e.g in some error checking loop such as given by thierry.
In most other cases it is better to use library(), because this will give an error message at package loading time if the package is not available. require() will just fail witho...
Cause CMAKE to generate an error
How can I get CMAKE to generate an error on a particular condition. That is, I want something like this:
1 Answer
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Sometimes adding a WCF Service Reference generates an empty reference.cs
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I was getting a meaningless error message (just a namespace) when adding a Service Reference and this pointed out the issue.
– bcampolo
Mar 28 '16 at 18:05
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Catching error codes in a shell pipe
...ated '>&2'; however, an old version of the MKS shell mishandled the error redirection without the preceding '1' so I've used that unambiguous notation for reliability for ages.
This leaks files if you interrupt something. Bomb-proof (more or less) shell programming uses:
tmp=${TMPDIR:-/tmp...
How do I include inline JavaScript in Haml?
...ilter to keep HAML from parsing the script and throwing an illegal nesting error:
%script{type: "text/x-mathjax-config"}
:plain
MathJax.Hub.Config({
tex2jax: {
inlineMath: [["$","$"],["\\(","\\)"]]
}
});
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