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How to get a value from a cell of a dataframe?
...]: sub_df.iloc[0]
Out[4]:
A -0.133653
B -0.030854
Name: 2, dtype: float64
In [5]: sub_df.iloc[0]['A']
Out[5]: -0.13365288513107493
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Interface vs Base class
When should I use an interface and when should I use a base class?
38 Answers
38
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Minimum and maximum value of z-index?
I have a div in my HTML page. I am showing this div based on some condition, but the div is displaying behind the HTML element where I pointed the mouse cursor.
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How do I get the application exit code from a Windows command line?
... and want to see what its return code is (since it returns different codes based on different errors).
7 Answers
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How to print Boolean flag in NSLog?
...ol value: %d",b);
or
NSLog(@"bool %s", b ? "true" : "false");
On the bases of data type %@ changes as follows
For Strings you use %@
For int you use %i
For float and double you use %f
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Why '&&' and not '&'?
...not computed using bitwise calculations. The result is basically looked up based on the values of the two operands, because the number of possibilities is so small.
Because both values are used for the lookup, this implementation isn't short-circuiting.
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SFTP in Python? (platform independent)
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There's also code.google.com/p/pysftp which is based on Paramiko, but easier to use
– franzlorenzon
Feb 8 '13 at 14:08
1
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What does string::npos mean in this code?
...can not be negative... real meaning is max_index, 18446744073709551615 for 64 bit size_t
– NoSenseEtAl
Sep 4 '14 at 12:33
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How to generate a random string of a fixed length in Go?
...te, n)
for i := range b {
b[i] = letterBytes[rand.Int63() % int64(len(letterBytes))]
}
return string(b)
}
This works and is significantly faster, the disadvantage is that the probability of all the letters will not be exactly the same (assuming rand.Int63() produces all 63-bit ...
Best way to simulate “group by” from bash?
... which is worse than two passes (which is what you get with a trivial hash based implementation). I should have said 'superlinear' instead of quadratic.
– Vinko Vrsalovic
Dec 19 '08 at 13:23
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