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How to create a density plot in matplotlib?
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124
Sven has shown how to use the class gaussian_kde from Scipy, but you will notice that it doesn'...
Matplotlib: “Unknown projection '3d'” error
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edited Apr 4 '19 at 18:23
Matthew Salvatore Viglione
4,14911 gold badge1010 silver badges3333 bronze badges
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max value of integer
In C, the integer (for 32 bit machine) is 32 bits, and it ranges from -32,768 to +32,767.
In Java, the integer(long) is also 32 bits, but ranges from -2,147,483,648 to +2,147,483,647.
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Why does Lua have no “continue” statement?
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In Lua 5.2 the best workaround is to use goto:
-- prints odd numbers in [|1,10|]
for i=1,10 do
if i % 2 == 0 then goto continue end
print(i)
::continue::
end
This is supported in LuaJIT since version 2.0.1
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Are the shift operators () arithmetic or logical in C?
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According to K&R 2nd edition the results are implementation-dependent for right shifts of signed values.
Wikipedia says that C/C++ 'usually' implements an arithmetic shift on signed values.
Basically you need to either test your compiler or...
App Inventor 2 源码商店
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Reusable library to get human readable version of file size?
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22 Answers
22
Active
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How to return 2 values from a Java method?
I am trying to return 2 values from a Java method but I get these errors. Here is my code:
14 Answers
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How to convert a data frame column to numeric type?
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277
Since (still) nobody got check-mark, I assume that you have some practical issue in mind, most...
Combine two or more columns in a dataframe into a new column with a new name
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132
Use paste.
df$x <- paste(df$n,df$s)
df
# n s b x
# 1 2 aa TRUE 2 aa
# 2 3 bb F...