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Java 8 List into Map
I want to translate a List of objects into a Map using Java 8's streams and lambdas.
21 Answers
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Determine the data types of a data frame's columns
...r(my.data)
'data.frame': 5 obs. of 4 variables:
$ y : num 1.03 1.599 -0.818 0.872 -2.682
$ x1: int 1 2 3 4 5
$ x2: logi TRUE TRUE FALSE FALSE FALSE
$ X3: Factor w/ 5 levels "a","b","c","d",..: 1 2 3 4 5
@Gavin Simpson's approach is also streamlined, but provides slightly different information...
Writing a pandas DataFrame to CSV file
...v:
df.to_csv(file_name, sep='\t')
To use a specific encoding (e.g. 'utf-8') use the encoding argument:
df.to_csv(file_name, sep='\t', encoding='utf-8')
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How do I comment on the Windows command line?
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edited Jun 22 at 12:28
answered Jun 8 '10 at 13:20
pax...
How do I create a list of random numbers without duplicates?
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185
This will return a list of 10 numbers selected from the range 0 to 99, without duplicates.
imp...
Remove non-ascii character in string
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ZaffyZaffy
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Max parallel http connections in a browser?
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428
Max Number of default simultaneous persistent connections per server/proxy:
Firefox 2: 2
Firef...
How to deal with SettingWithCopyWarning in Pandas?
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879
The SettingWithCopyWarning was created to flag potentially confusing "chained" assignments, su...
Where should Rails 3 custom validators be stored?
...w if there's some gem/config you need to add for this, but under rails 3.2.8 this doesn't work. Specifically, simply dropping your validator into app/validators/???.rb doesn't work.
– Doug
Aug 28 '12 at 6:22
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Check if a path represents a file or a folder
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