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How to assign colors to categorical variables in ggplot2 that have stable mapping?
...levels in multiple data frames can become tedious if they are being pulled from separate files and not all factor levels appear in each file.
One way to address this is to create a custom manual colour scale as follows:
#Some test data
dat <- data.frame(x=runif(10),y=runif(10),
grp = re...
What's a good IDE for Python on Mac OS X? [closed]
...and refactoring, and whose primary development language is Python. I come from the Java world, and have been a confident user of Eclipse for a good, long time. When not working in Java, I use emacs.
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byte[] to file in Java
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From the doc: NOTE: As from v1.3, the parent directories of the file will be created if they do not exist.
– bmargulies
Dec 3 '10 at 21:51
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How to convert enum value to int?
...the OP already has a value of type Tax, and wants to get the numeric value from it.
– Jon Skeet
Sep 10 '14 at 22:34
I ...
Under what circumstances are linked lists useful?
...tting an element in a known position:
on lists you have to walk the list from the first element to the element in the specific position. Worst case: O(n)
on arrays you can access the element immediately. O(1)
This is a very low-level comparison of these two popular and basic data structures and...
Clojure: cons (seq) vs. conj (list)
...e operation (in this case it would probably reduce to 1 + 3 -- the 1 comes from linear traversal over the first element, the 3 comes from (next (cons 4 '(1 2 3)) being a PersistentList and thus Counted).
The intention behind the names is, I believe, that cons means to cons(truct a seq)1, whereas co...
Compiling C++ on remote Linux machine - “clock skew detected” warning
..., or worse, necessary files to not be built.
However, if you are building from scratch (not doing an incremental build) you can likely ignore this warning without consequence.
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How do I discard unstaged changes in Git?
...urrent index for the current directory, throwing away all changes in files from the current directory downwards.
git checkout .
or this which checks out all files from the index, overwriting working tree files.
git checkout-index -a -f
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How do I get the parent directory in Python?
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Update from Python 3.4
Use the pathlib module.
from pathlib import Path
path = Path("/here/your/path/file.txt")
print(path.parent)
Old answer
Try this:
import os.path
print os.path.abspath(os.path.join(yourpath, os.pardir))
...
jQuery .hasClass() vs .is()
... a preferred method of determining whether an element is assigned a class, from a performance standpoint?
4 Answers
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