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Remap values in pandas column with a dict
...e values (and also whether you want non-matches to keep their values or be converted to NaNs):
Exhaustive Mapping
In this case, the form is very simple:
df['col1'].map(di) # note: if the dictionary does not exhaustively map all
# entries then non-matched entries are...
How to prevent ifelse() from turning Date objects into numeric objects
...
The reason why this won't work is because, ifelse() function converts the values to factors. A nice workaround would be to convert it to characters before evaluating it.
dates <- as.Date(c('2011-01-01','2011-01-02','2011-01-03','2011-01-04','2011-01-05'))
dates_new <- dates - 1
...
Microsoft Excel mangles Diacritics in .csv files?
....= '"'. implode('"'.$sep.'"', $line).'"'.$eol;
}
$encoded_csv = mb_convert_encoding($csv, 'UTF-16LE', 'UTF-8');
header('Content-Description: File Transfer');
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment; filename="'.$filename.'.csv"');...
How can you encode a string to Base64 in JavaScript?
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You can use btoa() and atob() to convert to and from base64 encoding.
There appears to be some confusion in the comments regarding what these functions accept/return, so…
btoa() accepts a “string” where each character represents an 8-bit byte – if...
Learning Python from Ruby; Differences and Similarities
...y code doesn't feel as compact. It's also not as efficient since it first converts the values array into a shorter intermediate array containing the values greater than 15. Then, it takes the intermediate array and generates a final array containing the squares of the intermediates. The intermedi...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...s wchar_t?
wchar_t is defined such that any locale's char encoding can be converted to a wchar_t representation where every wchar_t represents exactly one codepoint:
Type wchar_t is a distinct type whose values can represent distinct codes for all members of the largest extended character set s...
sass --watch with automatic minify?
...ebStorm etc. Use the following settings in Settings > File Watchers.
Convert style.scss to style.css set the arguments
--no-cache --update $FileName$:$FileNameWithoutExtension$.css
and output paths to refresh
$FileNameWithoutExtension$.css
Convert style.scss to compressed style.min.css se...
Facebook Architecture [closed]
... probably time wasting task. Hiphop only supports so much, it can't simply convert everything to C++. So what does this tell us? Well, it tells us that Facebook is NOT fully taking advantage of the PHP language. It's not using the latest 5.3 and I'm willing to bet there's still a lot that is PHP 4 c...
The best node module for XML parsing [closed]
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You can try xml2js. It's a simple XML to JavaScript object converter. It gets your XML converted to a JS object so that you can access its content with ease.
Here are some other options:
libxmljs
xml-stream
xmldoc
cheerio – implements a subset of core jQuery for XML (and HTML)
...
Is it possible to delete an object's property in PHP?
...that has an integer key. e.g. $o=(object)array('a','b','c'); (You have to convert the object (back) to an array even to simply access such properties!)
– danorton
Mar 19 '14 at 22:09
...