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Items in JSON object are out of order using “json.dumps”?
... to sort the keys:
>>> import json
>>> json.dumps({'a': 1, 'b': 2})
'{"b": 2, "a": 1}'
>>> json.dumps({'a': 1, 'b': 2}, sort_keys=True)
'{"a": 1, "b": 2}'
If you need a particular order; you could use collections.OrderedDict:
>>> from collections import Ordere...
What's the difference between a proc and a lambda in Ruby?
...e:
p = Proc.new {|a, b| puts a**2+b**2 } # => #<Proc:0x3c7d28@(irb):1>
p.call 1, 2 # => 5
p.call 1 # => NoMethodError: undefined method `**' for nil:NilClass
p.call 1, 2, 3 # => 5
l = lambda {|a, b| puts a**2+b**2 } # => #<Proc:0x15016c@(irb):5 (lambda)>
l.call 1, 2 # =&g...
Programmatically creating Markdown tables in R with KnitR
...
122
Now knitr (since version 1.3) package include the kable function for a creation tables:
> ...
Renaming columns in pandas
...
1974
Just assign it to the .columns attribute:
>>> df = pd.DataFrame({'$a':[1,2], '$b': [...
How to convert a Binary String to a base 10 integer in Java
...without leading zeroes) that I want to convert to their corresponding base 10 numbers. Consider:
9 Answers
...
Convert a list of data frames into one data frame
...
148
Use bind_rows() from the dplyr package:
bind_rows(list_of_dataframes, .id = "column_label")
...
How to delete history of last 10 commands in shell?
...
18 Answers
18
Active
...
Convert floats to ints in Pandas?
...mns=['a'])
df.a = df.a.astype(float)
df
Out[33]:
a
0 0.0000000
1 1.0000000
2 2.0000000
3 3.0000000
4 4.0000000
pd.options.display.float_format = '{:,.0f}'.format
df
Out[35]:
a
0 0
1 1
2 2
3 3
4 4
shar...
Understanding “randomness”
...
1481
Just a clarification
Although the previous answers are right whenever you try to spot the ra...
How to check if a number is a power of 2
...
1251
There's a simple trick for this problem:
bool IsPowerOfTwo(ulong x)
{
return (x & (x...