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Assigning a variable NaN in python without numpy

...>>> import math >>> math.isnan(nan) True Before Python 3.5, one could use float("nan") (case insensitive). Note that checking to see if two things that are NaN are equal to one another will always return false. This is in part because two things that are "not a number" cannot (s...
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emacs/elisp: What is the hash (pound, number sign, octothorp) symbol used for?

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Is there a way to change the spacing between legend items in ggplot2?

... ggplot2 v3.0.0 released in July 2018 has working options to modify legend.spacing.x, legend.spacing.y and legend.text. Example: Increase horizontal spacing between legend keys library(ggplot2) ggplot(mtcars, aes(factor(cyl), fil...
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Find XOR of all numbers in a given range

...s table for 4-bit numbers: 0000 <- 0 [a] 0001 <- 1 [1] 0010 <- 3 [a+1] 0011 <- 0 [0] 0100 <- 4 [a] 0101 <- 1 [1] 0110 <- 7 [a+1] 0111 <- 0 [0] 1000 <- 8 [a] 1001 <- 1 [1] 1010 <- 11 [a+1] 1011 <- 0 [0] 1100 <- 12 [a] 1101 <- 1 [1] 1110 <- 15 ...
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Converting Python dict to kwargs?

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node and Error: EMFILE, too many open files

...PE DEVICE SIZE/OFF NODE NAME ... nodejs 12211 root 1012u IPv4 151317015 0t0 TCP 10.101.42.209:40371->54.236.3.170:80 (ESTABLISHED) nodejs 12211 root 1013u IPv4 151279902 0t0 TCP 10.101.42.209:43656->54.236.3.172:80 (ESTABLISHED) nodejs 12211 root 1014u IPv4 ...
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Twitter Bootstrap 3.0 how do I “badge badge-important” now

...h!</span> Or where things are bigger: <div style="font-size: 36px"><!-- pretend an enclosing class has big font size --> <span class="label label-success label-as-badge">Yay! Rah!</span> </div> 11/16/2015: Looking at how we'll do this in Bootstrap 4...
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“Default Activity Not Found” on Android Studio upgrade

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How to show current year in view?

...18 Athix 3311 silver badge99 bronze badges answered May 30 '11 at 10:39 Emil AhlbäckEmil Ahlbäck ...
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How to take column-slices of dataframe in pandas

...ing to 'bar' df.loc[:, :'bar'] # foo bar # slice from 'quz' to the end by 3 df.loc[:, 'quz'::3] # quz sat # attempt from 'sat' to 'bar' df.loc[:, 'sat':'bar'] # no columns returned # slice from 'sat' to 'bar' df.loc[:, 'sat':'bar':-1] sat cat ant quz bar # slice notation is syntatic sugar for th...