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How to thoroughly purge and reinstall postgresql on ubuntu? [closed]
...ostgres related packages worked for me. I had some 8.4 & 9.1 packages mixed up. That combined with removing everything allowed me to finally reinstall 9.1 and have everything working with it.
– Nick
Jul 25 '12 at 15:09
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Difference between List, List, List, List, and List
...ay of a certain type, and returns an array of the same type.
4) You can't mix oranges and apples. You would be able to add an Object to your String list if you could pass a string list to a method that expects object lists. (And not all objects are strings)
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What are MVP and MVC and what is the difference?
...ew-Controller , Model-View-Presenter and Model-View-ViewModel . My question has three parts to it:
24 Answers
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UINavigationController without navigation bar?
I have a universal app, and on the iPad version I'm using UISplitViewController to create an interface similar to the Mail app.
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Clang vs GCC for my Linux Development project
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The gcc guys really improved the diagnosis experience in gcc (ah competition). They created a wiki page to showcase it here. gcc 4.8 now has quite good diagnostics as well (gcc 4.9x added color support). Clang is still in the lead, but the gap is closing.
Original:
For students, I would uncond...
Use Expect in a Bash script to provide a password to an SSH command
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Mixing Bash and Expect is not a good way to achieve the desired effect. I'd try to use only Expect:
#!/usr/bin/expect
eval spawn ssh -oStrictHostKeyChecking=no -oCheckHostIP=no usr@$myhost.example.com
# Use the correct promp...
What is the naming convention in Python for variable and function names?
... readability.
Variable names follow the same convention as function names.
mixedCase is allowed only in contexts where that's already the prevailing style (e.g. threading.py), to retain backwards compatibility.
share
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pandas dataframe columns scaling with sklearn
I have a pandas dataframe with mixed type columns, and I'd like to apply sklearn's min_max_scaler to some of the columns. Ideally, I'd like to do these transformations in place, but haven't figured out a way to do that yet. I've written the following code that works:
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Does opacity:0 have exactly the same effect as visibility:hidden
...rally takes space but nothing is drawn because 0% of the element colour is mixed with 100% of the background resulting in nothing new appearing. hidden and similar friends mean the element is skipped when drawing takes place.
– mP.
Oct 10 '10 at 23:57
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Convert data.frame columns from factors to characters
...frame to character). This solution is robust to a data.frame that contains mixed types.
– Joshua Ulrich
Aug 1 '13 at 21:42
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