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Speed up the loop operation in R
...on). The data.frame has roughly 850K rows. My PC is still working (about 10h now) and I have no idea about the runtime.
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Why does changing 0.1f to 0 slow down performance by 10x?
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1627
Welcome to the world of denormalized floating-point! They can wreak havoc on performance!!!
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Maven in Eclipse: step by step installation [closed]
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13 Answers
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How to increase font size in a plot in R?
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145
You want something like the cex=1.5 argument to scale fonts 150 percent. But do see help(par) ...
What is the most pythonic way to check if an object is a number?
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14 Answers
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IntelliJ IDEA 13 uses Java 1.5 despite setting to 1.7
Despite specifying JDK 1.7 in all project settings (including in File -> Project Structure -> Project :: Project SDK ), the following error is produced by IntelliJ 13 when trying to compile some simple Java 7 code which does use the diamond operator:
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Getting random numbers in Java [duplicate]
I would like to get a random value between 1 to 50 in Java.
2 Answers
2
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Normalize data in pandas
...In [92]: df
Out[92]:
a b c d
A -0.488816 0.863769 4.325608 -4.721202
B -11.937097 2.993993 -12.916784 -1.086236
C -5.569493 4.672679 -2.168464 -9.315900
D 8.892368 0.932785 4.535396 0.598124
In [93]: df_norm = (df - df.mean()) / (df.max() - df.min()...