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Change column type from string to float in Pandas
...y what you want, but what if you wanted to save some memory and use a more compact dtype, like float32, or int8?
to_numeric() gives you the option to downcast to either 'integer', 'signed', 'unsigned', 'float'. Here's an example for a simple series s of integer type:
>>> s = pd.Series([1, 2...
How to use a dot “.” to access members of dictionary?
...ope to help you:
class Map(dict):
"""
Example:
m = Map({'first_name': 'Eduardo'}, last_name='Pool', age=24, sports=['Soccer'])
"""
def __init__(self, *args, **kwargs):
super(Map, self).__init__(*args, **kwargs)
for arg in args:
if isinstance(arg, dict...
iPad/iPhone hover problem causes the user to double click a link
...(i.e on a device with both mouse and touch interface).
Further Reading
http://jsfiddle.net/macfreek/24Z5M/. Test the above solution for yourself in this sandbox.
http://www.macfreek.nl/memory/Touch_and_mouse_with_hover_effects_in_a_web_browser. This same answer, with a bit more background.
http:...
Ignore python multiple return value
...
One common convention is to use a "_" as a variable name for the elements of the tuple you wish to ignore. For instance:
def f():
return 1, 2, 3
_, _, x = f()
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How to return a value from __init__ in Python?
I have a class with an __init__ function.
10 Answers
10
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What's the difference between design patterns and architectural patterns?
...itectural" pattern to deal with separation of concerns.
Try reading on:
http://en.wikipedia.org/wiki/Architectural_pattern_(computer_science)
http://en.wikipedia.org/wiki/Design_pattern
http://en.wikipedia.org/wiki/Anti-pattern
...
SQL selecting rows by most recent date
... is the answer to "SQL selecting rows by most recent date".
Modified from http://wiki.lessthandot.com/index.php/Returning_The_Maximum_Value_For_A_Row
SELECT t.chargeId, t.chargeType, t.serviceMonth FROM(
SELECT chargeId,MAX(serviceMonth) AS serviceMonth
FROM invoice
GROUP BY chargeId)...
How can I manipulate the strip text of facet_grid plots?
...to use theme and element_text. A solution to the answer can be found here: http://wiki.stdout.org/rcookbook/Graphs/Facets%20%28ggplot2%29/#modifying-facet-label-text
qplot(hwy, cty, data = mpg) +
facet_grid(. ~ manufacturer) +
theme(strip.text.x = element_text(size = 8, colour = "red"...
How do I know which version of Javascript I'm using?
...
Click on this link to see which version your BROWSER is using: http://jsfiddle.net/Ac6CT/
You should be able filter by using script tags to each JS version.
<script type="text/javascript">
var jsver = 1.0;
</script>
<script language="Javascript1.1">
jsver = 1.1;
&...
Drop all tables whose names begin with a certain string
...is did not work for me. The answer to this question worked: stackoverflow.com/questions/5116296/…
– Ayushmati
May 11 at 19:18
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