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RuntimeWarning: invalid value encountered in divide
...ide by zero or NaN?
– x squared
Nov 10 '17 at 14:38
7
@xsquared When you have correctly handled t...
Disable intellij indexing on specific folder
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Do you use 10.5.1? Make sure this directory is not added as a library anywhere in your project.
– CrazyCoder
Jul 1 '11 at 13:03
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Count with IF condition in MySQL query
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@mojuba not 100% the same, your trick returns null when COUNT (no conditions) would've returned 0. When COUNT would've returned anything but 0, but the SUM does return 0, your trick returns 0.
– Robin Kanters
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Does hosts file exist on the iPhone? How to change it? [closed]
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answered Jan 8 '10 at 15:41
Andrew BullockAndrew Bullock
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rotating axis labels in R
...ere's an example:
require(grDevices)
tN <- table(Ni <- stats::rpois(100, lambda=5))
r <- barplot(tN, col=rainbow(20), las=1)
That represents the style of axis labels. (0=parallel, 1=all horizontal, 2=all perpendicular to axis, 3=all vertical)
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Transform DateTime into simple Date in Ruby on Rails
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answered Jul 10 '09 at 16:57
Ryan McGearyRyan McGeary
215k1111 gold badges8989 silver badges100100 bronze badges
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POST data in JSON format
...n, concise example of how to get the job done in 20 lines of code, without 100K of framework.
– spidee
Nov 16 '12 at 16:36
1
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When do I use fabs and when is it sufficient to use std::abs?
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answered Jun 25 '10 at 13:06
Mike SeymourMike Seymour
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How to make my layout able to scroll down?
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edited Sep 29 '10 at 6:31
answered Sep 29 '10 at 6:19
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How can I escape double quotes in XML attributes values?
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answered Oct 18 '10 at 17:11
Sachin ShanbhagSachin Shanbhag
49.1k99 gold badges8080 silver badges101101 bronze badges
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