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Remap values in pandas column with a dict
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You can use .replace. For example:
>>> df = pd.DataFrame({'col2': {0: 'a', 1: 2, 2: np.nan}, 'col1': {0: 'w', 1: 1, 2: 2}})
>>> di = {1: "A", 2: "B"}
>>> df
col1 col2
0 w a
1 1 2
2 2 NaN
>>> df.replace({"col...
How to avoid “too many parameters” problem in API design?
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One style embraced in the frameworks is usually like grouping related parameters into related classes (but yet again problematic with mutability):
var request = new HttpWebRequest(a, b);
var service = new RestService(request, c, d, e);
var client = new RestClient(service, f, g...
Which HTML5 tag should I use to mark up an author’s name?
For example of a blog-post or article.
8 Answers
8
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Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
Should I test if something is valid or just try to do it and catch the exception?
8 Answers
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Failed binder transaction when putting an bitmap dynamically in a widget
...he reason for failed binder transaction error? I can see this error message in logcat.
I am getting this error while trying to put an bitmap dynamically in a widget...
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What does it mean when a CSS rule is grayed out in Chrome's element inspector?
I'm inspecting an h2 element on a web page using Google Chrome's element inspector and some of the CSS rules--which appear to be applied--are grayed out. It seems that a strike-through indicates that a rule was overridden, but what does it mean when a style is grayed out?
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Launching Google Maps Directions via an intent on Android
My app needs to show Google Maps directions from A to B, but I don't want to put the Google Maps into my application - instead, I want to launch it using an Intent. Is this possible? If yes, how?
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How do I reattach to a detached mosh session?
How do I reattach to a detached mosh session or otherwise get rid of
7 Answers
7
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Database sharding vs partitioning
I have been reading about scalable architectures recently. In that context, two words that keep on showing up with regards to databases are sharding and partitioning . I looked up descriptions but still ended up confused.
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Microsoft Excel mangles Diacritics in .csv files?
I am programmatically exporting data (using PHP 5.2) into a .csv test file.
Example data: Numéro 1 (note the accented e).
The data is utf-8 (no prepended BOM).
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