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Python pandas Filtering out nan from a data selection of a column of strings
... 3
1 thg NaN 4
3 mol Graham NaN
4 lob NaN NaN
5 lob NaN NaN
[5 rows x 3 columns]
In [89]:
nms = nms.dropna(thresh=2)
In [90]:
nms[nms.name.notnull()]
Out[90]:
movie name rating
0 thg John 3
3 mol Graham NaN
[2 rows x 3 columns]
EDI...
What is the >>>= operator in C?
...a[ !!0X.1P1 ] )
The literal 0xFULL is the same as 0xF (which is hex for 15); the ULL just specifies that it's an unsigned long long literal. In any case, as a boolean it's true, so 0xFULL ? '\0' : -1 evaluates to '\0', which is a character literal whose numerical value is simply 0.
Meanwhile, 0X...
Are default enum values in C the same for all compilers?
... James McNellisJames McNellis
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14
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How can I set the aspect ratio in matplotlib?
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5 Answers
5
Active
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GoTo Next Iteration in For Loop in java
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352
continue;
continue; key word would start the next iteration upon invocation
For Example
fo...
Why does one hot encoding improve machine learning performance?
...|
edited Jul 3 '14 at 18:35
answered Jul 4 '13 at 12:20
Fre...
What is the default value for enum variable?
...
answered Feb 11 '11 at 9:58
BoltClock♦BoltClock
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GLib compile error (ffi.h), but libffi is installed
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Active
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Cost of exception handlers in Python
...)
Result:
a = 1
try:
b = 10/a
except ZeroDivisionError:
pass
0.25 usec/pass
a = 1
if a:
b = 10/a
0.29 usec/pass
a = 1
b = 10/a
0.22 usec/pass
a = 0
try:
b = 10/a
except ZeroDivisionError:
pass
0.57 usec/pass
a = 0
if a:
b = 10/a
0.04 usec/pass
a = 0
b = 10/a
ZeroDivis...