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Breaking loop when “warnings()” appear in R
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152
You can turn warnings into errors with:
options(warn=2)
Unlike warnings, errors will interru...
How to get first N elements of a list in C#?
...query a bus schedule in my project, so that at any time I can get the next 5 bus arrival times. How can I limit my query to the first 5 results?
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validation custom message for rails 3
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edited Mar 4 '15 at 3:20
Andrew Hendrie
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Assign pandas dataframe column dtypes
...d.DataFrame({'x': {0: 'a', 1: 'b'}, 'y': {0: '1', 1: '2'}, 'z': {0: '2018-05-01', 1: '2018-05-02'}})
df.dtypes
x object
y object
z object
dtype: object
df
x y z
0 a 1 2018-05-01
1 b 2 2018-05-02
You can apply these to each column you want to convert:
df["y"] = pd....
Get css top value as number not as string?
... M4NM4N
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57
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Skip rows during csv import pandas
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145
You can try yourself:
>>> import pandas as pd
>>> from StringIO import String...
Is generator.next() visible in Python 3?
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Boris
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answered Jul 2 '09 at 10:15
Lennart RegebroLennart...
Shading a kernel density plot between two points.
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5 Answers
5
Active
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What is the optimal Jewish toenail cutting algorithm?
...ish rule. Luckily, humans only have five toes per foot*, so there are only 5! = 120 unrestricted sequences.
Python example:
#seq is only valid when consecutive elements in the list differ by at least two.
def isValid(seq):
for i in range(len(seq)-1):
a = seq[i]
b = seq[i+1]
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