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python pandas dataframe to dictionary
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12 Answers
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Iterate a list with indexes in Python
... 19] and makes it into iterable list of tuples, like so: [(0,3), (1,7), (2,19)] to use it instead of:
6 Answers
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How do I remove all specific characters at the end of a string in PHP?
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Mike Kormendy
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answered Jan 13 '10 at 1:42
Alix AxelAlix Axel...
Create table using Javascript
I have a JavaScript function which creates a table with 3 rows 2 cells.
12 Answers
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How does the HyperLogLog algorithm work?
...own prefix, there is a higher chance that the cardinality of the stream is 2^(size of the prefix).
That is, in a random stream of integers, ~50% of the numbers (in binary) starts with "1", 25% starts with "01", 12,5% starts with "001". This means that if you observe a random stream and see a "001",...
Naming returned columns in Pandas aggregate function? [duplicate]
...())
# height age Seed
# 1 4.51 3 301
# 15 10.89 5 301
# 29 28.72 10 301
# 43 41.74 15 301
# 57 52.70 20 301
df = data.groupby('Seed').agg(
{'age':['sum'],
'height':['mean', 'std']})
print(df.head())
# age height
# sum std ...
What is the difference between range and xrange functions in Python 2.X?
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28 Answers
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Intersection of two lists in Bash
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comm -12 <(ls 1) <(ls 2)
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How can I confirm a database is Oracle & what version it is using SQL?
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288
Run this SQL:
select * from v$version;
And you'll get a result like:
BANNER
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Updating version numbers of modules in a multi-module Maven project
...ersions:set from the versions-maven plugin:
mvn versions:set -DnewVersion=2.50.1-SNAPSHOT
It will adjust all pom versions, parent versions and dependency versions in a multi-module project.
If you made a mistake, do
mvn versions:revert
afterwards, or
mvn versions:commit
if you're happy wit...