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Error in if/while (condition) {: missing Value where TRUE/FALSE needed
...TRUE && sqrt(-1)) { : missing value where TRUE/FALSE needed
To test whether an object is missing use is.na(x) rather than x == NA.
See also the related errors:
Error in if/while (condition) { : argument is of length zero
Error in if/while (condition) : argument is not interpretable ...
How to get Time from DateTime format in SQL?
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@rahularyansharma: you can test yourself based on this stackoverflow.com/questions/133081/…
– gbn
Oct 10 '11 at 9:05
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How to get the browser language using JavaScript [duplicate]
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My testing suggests that while this works in IE and Firefox, it does not work in Chrome. Chrome's navigator.language is always the language configuration of the installation of windows, rather than the language configuration of...
argparse: identify which subparser was used [duplicate]
...de:
import argparse
parser = argparse.ArgumentParser( version='pyargparsetest 1.0' )
subparsers = parser.add_subparsers(help='commands')
# all
all_parser = subparsers.add_parser('all', help='process all apps')
all_parser.set_defaults(which='all')
# app
app_parser = subparsers.add_parser('app', h...
How to check for file existence [duplicate]
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Check out Pathname and in particular Pathname#exist?.
File and its FileTest module are perhaps simpler/more direct, but I find Pathname a nicer interface in general.
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blur vs focusout — any real differences? [duplicate]
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As much as i tested focusout seems to be much better than blur!
– Ingus
May 21 at 11:42
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VB.NET IntelliSense : Disable newline on ENTER autocomplete
... It is the only way I've found.
It has a 30 days free trial if you want to test it.
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Correct way to override Equals() and GetHashCode() [duplicate]
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Be careful when using a primary key as your test for equality in overriding Equals() because it only works AFTER the object has been persisted. Prior to that your objects don't have primary keys yet and the IDs of the ones in memory are all zero.
I use base.Equals() i...
CSS values using HTML5 data attribute [duplicate]
...g the content.
Unfortunately it is not working for the width and height (tested in Google Chrome 35, Mozilla Firefox 30 & Internet Explorer 11).
But there is a CSS3 attr() Polyfill from Fabrice Weinberg which provides support for data-width and data-height. You can find the GitHub repo to it ...
Charts for Android [closed]
...ound below:
SciChart's Android Charts Features
Android Chart Performance Tests vs. Open Source & Commercial
Android Chart Examples and example source code
SciChart Quick Start Guide
Android Charts Documentation
Disclosure: I am the tech lead on the SciChart project!
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