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Convert Pandas column containing NaNs to dtype `int`
I read data from a .csv file to a Pandas dataframe as below. For one of the columns, namely id , I want to specify the column type as int . The problem is the id series has missing/empty values.
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Best way to do multiple constructors in PHP
...f a problem, like creating form elements. but then, that's just my opinion and for the record; I don't claim it to be fact.
– Kris
Nov 9 '09 at 16:24
4
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How to copy Docker images from one host to another without using a repository
... load -i <path to image tar file>
PS: You may need to sudo all commands.
EDIT:
You should add filename (not just directory) with -o, for example:
docker save -o c:/myfile.tar centos:16
share
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Multiple github accounts on the same computer?
Trying to work on my both my actual "work" repos, and my personal repos on git hub, from my computer.
24 Answers
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Scroll to a div using jquery
...click( function() { // Your code here } ); in order to bind a click event handler to the object.... Like in my example below. As an aside, you can also just trigger a click on an object by using it without arguments, like object.click().
Third, scrollTo is a plugin in jQuery. I don't know if you ha...
Android- create JSON Array and JSON Object
How can I create a JSON with this format in Android:
Since the API that I will be passing will parse JsonArray then the object.
Or would it be okay if just to pass a json object? Since I will just have to insert 1 transaction per service call.
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@UniqueConstraint annotation in Java
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I'm currently using play framework too with hibernate and JPA 2.0 annotation and this model works without problems
@Entity
@Table(uniqueConstraints={@UniqueConstraint(columnNames = {"id_1" , "id_2"})})
public class class_name {
@Id
@GeneratedValue
public Long id;
@Not...
Push Notifications in Android Platform
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Google's official answer is the Android Cloud to Device Messaging Framework (deprecated) Google Cloud Messaging(deprecated) Firebase Cloud Messaging
It will work on Android >= 2.2 (on phones that have the Play Store).
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mongodb count num of distinct values per field/key
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MongoDB has a distinct command which returns an array of distinct values for a field; you can check the length of the array for a count.
There is a shell db.collection.distinct() helper as well:
> db.countries.distinct('country');
[ "Spain", "Engl...
Android: Is it possible to display video thumbnails?
...ist of recorded videos where each item consists of icon, video title, tags and location information the following way:
10 A...