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Fastest way to replace NAs in a large data.table
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Vagrant reverse port forwarding?
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134
When you run vagrant ssh, it's actually using this underlying command:
ssh -p 2222 -o UserKno...
Truncate number to two decimal places without rounding
Suppose I have a value of 15.7784514, I want to display it 15.77 with no rounding.
36 Answers
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Setting different color for each series in scatter plot on matplotlib
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import matplotlib.pyplot as plt
import matplotlib.cm as cm
x = np.arange(10)
ys = [i+x+(i*x)**2 for i in range(10)]
colors = cm.rainbow(np.linspace(0, 1, len(ys)))
for y, c in zip(ys, colors):
plt.scatter(x, y, color=c)
Or you can make your own colour cycler using itertools.cycle and specif...
Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
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Connect to a locally built Jekyll Server using mobile devices in the LAN
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Try jekyll serve --host=0.0.0.0 when you invoke Jekyll on the command line.
That will make Je...
Remove rows with all or some NAs (missing values) in data.frame
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16 Answers
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Find which version of package is installed with pip
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15 Answers
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MySQL一次主从数据不一致的问题解决过程 - 数据库(内核) - 清泛网 - 专注C/...
...库缺少的数据补上
下面是能想到和找到的几个方案
1 从新从0开始同步，虽然对主库的使用没有影响，但是那么大的数据量，对性能，网络影响有点大，数据丢失的应该很少
2 主库dump数据，锁库，然后同步，不好。 影响业...