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Apply pandas function to column to create multiple new columns?
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Building off of user1827356 's answer, you can do the assignment in one pass using df.merge:
df.merge(df.textcol.apply(lambda s: pd.Series({'feature1':s+1, 'feature2':s-1})),
left_index=True, right_index=True)
textcol feature1 featur...
Java 8 Stream and operation on arrays
I have just discovered the new Java 8 stream capabilities. Coming from Python, I was wondering if there was now a neat way to do operations on arrays like summing, multiplying two arrays in a "one line pythonic" way ?
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What is database pooling?
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answered Oct 28 '10 at 8:39
paxdiablopaxdiablo
737k199199 gold badges14231423 silver badges17931793 bronze badges
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How do I replace NA values with zeros in an R dataframe?
...eplace = TRUE), 10)
> d <- as.data.frame(m)
V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
1 4 3 NA 3 7 6 6 10 6 5
2 9 8 9 5 10 NA 2 1 7 2
3 1 1 6 3 6 NA 1 4 1 6
4 NA 4 NA 7 10 2 NA 4 1 8
5 1 2 4 NA 2 6 2 6 7 4
6 NA 3 NA NA 10 2 1 10 8 4
7 4 4 9 ...
Setting Short Value Java
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178
In Java, integer literals are of type int by default. For some other types, you may suffix the l...
SELECT DISTINCT on one column
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answered Jun 8 '09 at 18:20
Aaron AltonAaron Alton
20.6k66 gold badges3131 silver badges3131 bronze badges
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git: Show index diff in commit message as comment
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Alan Haggai AlaviAlan Haggai Alavi
65.4k1818 gold badges9494 silver badges123123 bronze badges
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How to compare times in Python?
...datetime.now() ) is earlier, later or the same than a specified time (e.g. 8am) regardless of the date.
8 Answers
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How to run crontab job every week on Sunday
...d [0-23]
# 3. Entry: Day of the month when the process will be started [1-28/29/30/31]
# 4. Entry: Month of the year when the process will be started [1-12]
# 5. Entry: Weekday when the process will be started [0-6] [0 is Sunday]
#
# all x min = */x
So according to this your 5 8 * * 0 would run 8:...
How to test an Internet connection with bash?
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#!/bin/bash
echo -e "GET http://google.com HTTP/1.0\n\n" | nc google.com 80 > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo "Online"
else
echo "Offline"
fi
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