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Converting string to numeric [duplicate]
...pect you are having a problem with factors. For example,
> x = factor(4:8)
> x
[1] 4 5 6 7 8
Levels: 4 5 6 7 8
> as.numeric(x)
[1] 1 2 3 4 5
> as.numeric(as.character(x))
[1] 4 5 6 7 8
Some comments:
You mention that your vector contains the characters "Down" and "NoData". What do ...
Difference between numpy.array shape (R, 1) and (R,)
...
554
1. The meaning of shapes in NumPy
You write, "I know literally it's list of numbers and list of...
How do I globally configure RSpec to keep the '--color' and '--format specdoc' options turned on
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edited Sep 23 '15 at 11:46
Nakilon
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answere...
Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
...
842
Use collections.Counter:
>>> from collections import Counter
>>> A = Counter...
Understanding the map function
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451
map isn't particularly pythonic. I would recommend using list comprehensions instead:
map(f, ...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
How can the theoretical peak performance of 4 floating point operations (double precision) per cycle be achieved on a modern x86-64 Intel CPU?
...
Asp.net 4.0 has not been registered
...tudio Tools, namely: Visual Studio Command Prompt (2010) Visual Studio x64 Cross Tools Command Prompt (2010) Visual Studio x64 Win64 Command Prompt (2010) Does it matter which one is used for this command?
– B. Clay Shannon
Apr 25 '13 at 17:01
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How do I find the stack trace in Visual Studio?
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edited Dec 17 '15 at 22:40
Jim Aho
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answered Ju...
What is the difference between shallow copy, deepcopy and normal assignment operation?
...inal.
Here's a little demonstration:
import copy
a = [1, 2, 3]
b = [4, 5, 6]
c = [a, b]
Using normal assignment operatings to copy:
d = c
print id(c) == id(d) # True - d is the same object as c
print id(c[0]) == id(d[0]) # True - d[0] is the same object as c[0]
Using a shall...
How do I do an OR filter in a Django query?
...
Alex KoshelevAlex Koshelev
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...