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Select by partial string from a pandas DataFrame
I have a DataFrame with 4 columns of which 2 contain string values. I was wondering if there was a way to select rows based on a partial string match against a particular column?
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What is the meaning of “__attribute__((packed, aligned(4))) ”
...es in some cases. Consider the following structure:
typedef struct
{
char Data1;
int Data2;
unsigned short Data3;
char Data4;
}sSampleStruct;
sizeof(sSampleStruct) will be 12 rather than 8. Because of structure padding. By default, In X86, structures will be padded to 4-byte ...
How to unescape HTML character entities in Java?
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I have used the Apache Commons StringEscapeUtils.unescapeHtml4() for this:
Unescapes a string containing entity
escapes to a string containing the
actual Unicode characters
corresponding to the escapes. Supports
HTML 4.0 entities.
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Install Application programmatically on Android
...<application
android:allowBackup="true"
android:label="@string/app_name">
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${applicationId}.authorityStr"
android:exported="false"
and...
Check whether a path is valid
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Try Uri.IsWellFormedUriString():
The string is not correctly escaped.
http://www.example.com/path???/file name
The string is an absolute Uri that represents an implicit file Uri.
c:\\directory\filename
The string is an absolute URI that is mi...
How to go about formatting 1200 to 1.2k in java
...and was more difficult to read.
private static final NavigableMap<Long, String> suffixes = new TreeMap<> ();
static {
suffixes.put(1_000L, "k");
suffixes.put(1_000_000L, "M");
suffixes.put(1_000_000_000L, "G");
suffixes.put(1_000_000_000_000L, "T");
suffixes.put(1_000_000_000_0...
Notification passes old Intent Extras
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android gotcha #147 - so an Intent that has different extras (via putExtra) are considered the same and re-used because i did not provide a unique id to some pending intent call - terrible api
– wal
Nov 30 '16 at 7:07
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Convert integer to hexadecimal and back again
...Store integer 182
int intValue = 182;
// Convert integer 182 as a hex in a string variable
string hexValue = intValue.ToString("X");
// Convert the hex string back to the number
int intAgain = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber);
from http://www.geekpedia.com/KB8_How-d...
What method in the String class returns only the first N characters?
I'd like to write an extension method to the String class so that if the input string to is longer than the provided length N , only the first N characters are to be displayed.
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How to convert a string to lower or upper case in Ruby
How do I take a string and convert it to lower or upper case in Ruby?
11 Answers
11
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