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How do I draw a grid onto a plot in Python?

...lot using pylab in Python and now I would like to superimpose a grid of 10x10 onto the scatter plot. How do I do that? 5 ...
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How might I convert a double to the nearest integer value?

... answered Mar 11 '09 at 4:33 nickfnickf 482k187187 gold badges607607 silver badges703703 bronze badges ...
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Given an RGB value, how do I create a tint (or shade)?

Given an RGB value, like 168, 0, 255 , how do I create tints (make it lighter) and shades (make it darker) of the color? 3...
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The modulo operation on negative numbers in Python

...nually fix it up by adding 7: int result = (2 - N) % 7; return result < 0 ? result + 7 : result; (See http://en.wikipedia.org/wiki/Modulo_operator for how the sign of result is determined for different languages.) share ...
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How to show SQL queries run in the Rails console?

... | edited Jul 25 '18 at 0:36 morhook 48455 silver badges1515 bronze badges answered May 29 '10 at 17:4...
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Why does one hot encoding improve machine learning performance?

...h" and "US". Assume, without loss of generality, that these are encoded as 0, 1 and 2. You then have a weight w for this feature in a linear classifier, which will make some kind of decision based on the constraint w×x + b > 0, or equivalently w×x < b. The problem now is that the weight w c...
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Changing UIImage color

...AlwaysTemplate]; [theImageView setTintColor:[UIColor redColor]]; Swift 2.0: theImageView.image = theImageView.image?.imageWithRenderingMode(.AlwaysTemplate) theImageView.tintColor = UIColor.magentaColor() Swift 4.0: theImageView.image = theImageView.image?.withRenderingMode(.alwaysTemplate) ...
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MySQL Update Inner Join tables query

I have no idea what the problem is. Using MySQL 5.0 I get a compile error when attempting to run the following MySQL update query: ...
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How can I create directory tree in C++/Linux?

...ries in path @(#)Author: J Leffler @(#)Copyright: (C) JLSS 1990-2020 @(#)Derivation: mkpath.c 1.16 2020/06/19 15:08:10 */ /*TABSTOP=4*/ #include "posixver.h" #include "mkpath.h" #include "emalloc.h" #include <errno.h> #include <string.h> /* "sysstat.h" == <sys/stat...
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How do I create test and train samples from one dataframe with pandas?

...ering how I would be able to split the dataframe into two random samples (80% and 20%) for training and testing. 23 Answers...