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How do you extract a column from a multi-dimensional array?
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234
>>> import numpy as np
>>> A = np.array([[1,2,3,4],[5,6,7,8]])
>>> A...
Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
...SH PRIVILEGES
statement to reload the grant tables.
See also Section 5.4.4, “Access
Control, Stage 1: Connection
Verification”.
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How to find an available port?
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Could be used like so:
try {
ServerSocket s = create(new int[] { 3843, 4584, 4843 });
System.out.println("listening on port: " + s.getLocalPort());
} catch (IOException ex) {
System.err.println("no available ports");
}
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Remove an element from a Bash array
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edited Jun 7 at 2:14
dimo414
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Vagrant's port forwarding not working [closed]
...s definitely not the port forwarding.
Next: try curl -v 'http://localhost:4567/' from your host machine. Curl might give you a better error message than Safari.
I'd check that there are no firewalls set up restricting access to port 80. The default Vagrant VM (Ubuntu) doesn't come with a firewal...
Node.js Mongoose.js string to ObjectId function
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433
You can do it like so:
var mongoose = require('mongoose');
var id = mongoose.Types.ObjectId('...
How can I handle R CMD check “no visible binding for global variable” notes when my ggplot2 syntax i
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45
Have you tried with aes_string instead of aes? This should work, although I haven't tried it:
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How to find duplicates in 2 columns not 1
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194
You should set up a composite key between the two fields. This will require a unique stone_id a...
Base64 encoding and decoding in client-side Javascript
... in JavaScript that could be used to encode and decode a string using base64 encoding?
13 Answers
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