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How can I add additional PHP versions to MAMP
The current version of MAMP that I have only has php 5.2.17 and 5.4.4. I need 5.3.X. Is there a way to add additional versions that can be selected in the MAMP interfaces php preferences? This is for the free version of MAMP, not MAMP PRO.
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SQL query for finding records where count > 1
...nt
FROM
PAYMENT
GROUP BY
account,
user_id ,
date
Having
COUNT(*) > 1
Update
If you want to only include those that have a distinct ZIP you can get a distinct set first and then perform you HAVING/GROUP BY
SELECT
user_id,
account_no ,
date,
COUNT(*)
FROM
(SELECT...
Rails 3 execute custom sql query without a model
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168
Maybe try this:
ActiveRecord::Base.establish_connection(...)
ActiveRecord::Base.connection.ex...
How to get the last element of an array in Ruby?
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Use -1 index (negative indices count backward from the end of the array):
a[-1] # => 5
b[-1] # => 6
or Array#last method:
a.last # => 5
b.last # => 6
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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
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131
I'm gonna guess that you are running python 2.6 by accident somehow.
This feature is only ava...
How to perform element-wise multiplication of two lists?
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14 Answers
14
Active
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Bash if statement with multiple conditions throws an error
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251
Use -a (for and) and -o (for or) operations.
tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01....
How to iterate over associative arrays in Bash
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591
The keys are accessed using an exclamation point: ${!array[@]}, the values are accessed using ${...
Skip rows during csv import pandas
... I don't want to import the 2nd row of the data file (the row with index = 1 for 0-indexing).
6 Answers
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How to access the ith column of a NumPy multidimensional array?
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>>> test[:,0]
array([1, 3, 5])
Similarly,
>>> test[1,:]
array([3, 4])
lets you access rows. This is covered in Section 1.4 (Indexing) of the NumPy reference. This is quick, at least in my experience. It's certainly much quicker ...