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Split (explode) pandas dataframe string entry to separate rows
...lumn of text strings contains comma-separated values. I want to split each CSV field and create a new row per entry (assume that CSV are clean and need only be split on ','). For example, a should become b :
...
Rails: How does the respond_to block work?
...# index.html.erb
format.json { render :json => @posts }
format.csv { render :csv => @posts }
format.js
end
end
The csv line will cause to_csv to be called on each post when you visit /posts.csv. This makes it easy to export data as CSV (or any other format) from your rails ...
How to use the “number_to_currency” helper method in the model rather than view?
...in Sam’s answer.
If you think “but I really need this to write my to_csv & to_pdf methods in my model!”, then your entire premise is wrong—after all, you don’t have a to_html method, do you? And yet your object is very often rendered as HTML. Consider creating a new class for generat...
Effective method to hide email from spam bots
...her it be executed by CSS or JavaScript.
– Jani Hyytiäinen
Aug 24 '13 at 11:54
3
@JaniHyytiäine...
LINQ Aggregate algorithm explained
...in sequence) to make 6. Then adds 6 and 4 to make 10.
Example 2. create a csv from an array of strings
var chars = new []{"a","b","c", "d"};
var csv = chars.Aggregate( (a,b) => a + ',' + b);
Console.WriteLine(csv); // Output a,b,c,d
This works in much the same way. Concatenate a a comma and b...
How can I combine multiple rows into a comma-delimited list in Oracle? [duplicate]
...('Antigua');
SELECT SUBSTR (SYS_CONNECT_BY_PATH (country_name , ','), 2) csv
FROM (SELECT country_name , ROW_NUMBER () OVER (ORDER BY country_name ) rn,
COUNT (*) OVER () cnt
FROM countries)
WHERE rn = cnt
START WITH rn = 1
CONNECT BY rn = PRIOR rn + 1;
...
Having Django serve downloadable files
... If your filename, or path_to_file includes non-ascii characters such as "ä" or "ö", the smart_str does not work as intended since apache module X-Sendfile cannot decode the smart_str encoded string. Thus for example "Örinää.mp3" file cannot be served. And if one omits the smart_str, the Djang...
What does the regex \S mean in JavaScript? [duplicate]
... "/\S/" delineate the regular expression.
– Thorkil Værge
Oct 9 '17 at 9:28
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backbone.js & underscore.js CDN recommendation?
...periods of down time atleast in europe
– Simon Dragsbæk
Feb 26 '14 at 12:36
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如何获取IE (控件)的所有链接（包括Frameset, iframe） - C/C++ - 清泛网 -...
... 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节点列表：CComPtr<IHTMLElement> body;...CComPtr<IDispatc...IE 顶层 body 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节点列表：
CComPtr<IHTMLElement> body;
...
CComPtr<IDispatch> spDispCollec...