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How to combine multiple conditions to subset a data-frame using “OR”?
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filter(df, v1 < 0.5 | v2 == "g")
Using sqldf:
library(sqldf)
sqldf('SELECT *
FROM df
WHERE v1 < 0.5 OR v2 = "g"')
Output for the above options:
v1 v2
1 0.26550866 a
2 0.37212390 b
3 0.20168193 e
4 0.94467527 g
5 0.06178627 j
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Excel “External table is not in the expected format.”
...e same problem. which as resolved using these steps:
1.) Click File
2.) Select "save as"
3.) Click on drop down (Save as type)
4.) Select Excel 97-2003 Workbook
5.) Click on Save button
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How do you check whether a number is divisible by another number (Python)?
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to answer your question: select and ctrl+K indents. I've done that for you for this time.
– Jean-François Fabre♦
Jan 4 '17 at 21:17
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How to add line break for UILabel?
...line feed (\n). In Interface Builder's Label attributes, set # Lines = 0.
Select the label and then change Lines property to 0 like in the above image, and then use \n in your string for line break.
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Set the location in iPhone Simulator
...27.565370"> <name>MyOffice</name> </wpt> </gpx>
Select in Xcode at the Simulate area Add GPX File to Project...
Add created file from menu to project.
Now you can see your location in Simulate area:
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Detect the Enter key in a text input field
...re for for legacy browsers support)
// keyup is not compatible with Jquery select(), Keydown is.
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Is there an IDictionary implementation that, on missing key, returns the default value instead of th
...<K, V>(this IDictionary<K, V> dict, K key, Func<V> defValSelector)
{
V value;
return dict.TryGetValue(key, out value) ? value : defValSelector();
}
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How to add http:// if it doesn't exist in the URL?
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This should be the selected answer - why roll your own when the language has native support? Nice work.
– Tom Auger
Aug 19 '13 at 15:24
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How do you properly use namespaces in C++?
...mbols from the namespace.
The most secure way to use "using" is to import select symbols:
void doSomething()
{
using std::string ; // string is now "imported", at least,
// until the end of the function
string a("Hello World!") ;
std::cout << a << std::en...
How to get current language code with Swift?
...u want to get the type en-En, you can use Locale.preferredLanguages[0]
2)
Select Project(MyApp)->Project (not Target)-> press + button into Localizations, then add language which you want.
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