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pandas: multiple conditions while indexing data frame - unexpected behavior
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As you can see, the AND operator drops every row in which at least one
value equals -1. On the other hand, the OR operator requires both
values to be equal to -1 to drop them.
That's right. Remember that you're writing the condition in terms of what you ...
Android equivalent to NSNotificationCenter
...components to explicitly register with one another
see their sample on https://code.google.com/p/guava-libraries/wiki/EventBusExplained
// Class is typically registered by the container.
class EventBusChangeRecorder {
@Subscribe public void recordCustomerChange(ChangeEvent e) {
recordChange(...
When should we call System.exit in Java
...red to do anything other than halt the JVM; shutdown hooks will not run.
PS: The JVM can shut down in either an orderly or abrupt manner.
An orderly shutdown is initiated when the last “normal” (nondaemon) thread terminates, someone calls System.exit, or by other platform-specific means (su...
How to permanently add a private key with ssh-add on Ubuntu? [closed]
... later you need to additionally edit your ssh config as described here: https://github.com/jirsbek/SSH-keys-in-macOS-Sierra-keychain
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外媒评本轮科技泡沫：创业公司首当其冲 九成将消失 - 资讯 - 清泛网 - 专注...
...创业公司至少有了存在的可能，但这并不意味着这些因素最终会产生协同效应。
如果能称得上是一次科技泡沫的话，那么这一次的泡沫则是因为资金量相对较少而膨胀起来的。这好像就是用一种很奇怪的方式来描述估值数十亿...
Launch custom android application from android browser
...work for someone, refer this please: stackoverflow.com/a/21727055/2695276 PS: struggled for days over this.
– Rajat Sharma
Jan 2 '15 at 21:06
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How can I get Maven to stop attempting to check for updates for artifacts from a certain group from
...updatePolicy tag didn't work for me. However Rich Seller mentioned that snapshots should be disabled anyways so I looked further and noticed that the extra repository that I added to my settings.xml was causing the problem actually. Adding the snapshots section to this repository in my settings.xml ...
When - and why - should you store data in the Windows Registry?
...does, or do you mean this is what Microsoft recommends to devs who build apps for Windows?
– Cheeso
May 19 '09 at 14:52
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How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?
... your controls within the Design HTML will be available for your control.
PS: This should not be done in debug mode, as not everything is "recompiled" when debugging.
Some people have also reported success by (making a backup copy of your .designer.cs file and then) deleting the .designer.cs file....
location.host vs location.hostname and cross-browser compatibility?
...tname. You pick whether you care to match the port number or not. See https://developer.mozilla.org/en/window.location for more info.
I would assume you want hostname to just get the site name.
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