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How to convert index of a pandas dataframe into a column?
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df1 = pd.DataFrame({"gi":[232,66,34,43],"ptt":[342,56,662,123]})
p = df1.index.values
df1.insert( 0, column="new",value = p)
df1
new gi ptt
0 0 232 342
1 1 66 56
2 2 34 662
3 3 43 123
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Download JSON object as a file from browser
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Found an answer.
var obj = {a: 123, b: "4 5 6"};
var data = "text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(obj));
$('<a href="data:' + data + '" download="data.json">download JSON</a>').appendTo('#container');
seems to work f...
Git Alias - Multiple Commands and Parameters
...performing redirections and return the status 0. Here're some usages: 1. a=123;$a errors, but a=123; : $a does not. 2. : > hello.txt empties hello.txt. 3. if [ "$a" = "hello" ];then : ;fi runs okay but errors without ':'. It's like pass in python. 4. : this is a comment, the colon followed by spa...
Read each line of txt file to new array element
... file should either be stored on memory cache, or even in a database. Even PHP stores the content of parsed files. I mean, we're far from PHP 4.3
– Yanick Rochon
Jul 16 at 2:32
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MySQL ON DUPLICATE KEY - last insert id?
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It is said that php function mysql_insert_id() returns correct value in both cases: php.net/manual/en/function.mysql-insert-id.php#59718.
– jayarjo
Jun 10 '10 at 13:09
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python re.sub group: number after \number
How can I replace foobar with foo123bar ?
1 Answer
1
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What is the point of interfaces in PHP?
... concept of an 'interface' from the concrete interfaces in a language like PHP? Any function, for instance, has an "interface" which defines how you use it and hides its implementation. So that kind of "contractual" interface doesn't require a special language feature. Therefore the language feature...
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize
...AtLevel=1</argLine>
you should replace MaxPermSize argument as -Xms123m -Xmx123m, since MaxPermSize is already deprecated and wont take any effect on your JVM config :
<argLine>-Xms512m -Xmx512m -XX:+TieredCompilation -XX:TieredStopAtLevel=1</argLine>
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How do you remove all the options of a select box and then add one option and select it with jQuery?
.../attr/text like: .append($("<option></option>").attr("value", '123').text('ABC!')
– Brock Hensley
Jun 27 '13 at 21:58
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JavaScript style for optional callbacks
...swered Mar 31 '14 at 11:16
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