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Add legend to ggplot2 line plot
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All that's left is a simple ggplot command:
ggplot(dd) + geom_line(aes(x=fecha, y=value, colour=variable)) +
scale_colour_manual(values=c("red","green","blue"))
Example plot
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improv...
Retrieve a single file from a repository
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in git version 1.7.9.5 this seems to work to export a single file from a remote
git archive --remote=ssh://host/pathto/repo.git HEAD README.md
This will cat the contents of the file README.md.
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Padding characters in printf
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Pure Bash, no external utilities
This demonstration does full justification, but you can just omit subtracting the length of the second string if you want ragged-right lines.
pad=$(printf '%0.1s' "-"{1..60})
padlength=40
string2='bbbbbbb'...
Python: Checking if a 'Dictionary' is empty doesn't seem to work
... behave properly. It just skips it and displays ONLINE without anything except of display the message. Any ideas why ?
8 ...
How to check if a float value is a whole number
...), and that floating point arithmetic can be imprecise (a float is an approximation using binary fractions, not a precise real number). But adjusting your loop a little this gives:
>>> for n in range(12000, -1, -1):
... if (n ** (1.0/3)).is_integer():
... print n
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27
8
1
0
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What are all the common ways to read a file in Ruby?
...d
# File is closed automatically at end of block
It is also possible to explicitly close file after as above (pass a block to open closes it for you):
f = File.open("my/file/path", "r")
f.each_line do |line|
puts line
end
f.close
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How to determine the longest increasing subsequence using dynamic programming?
...lution which is O(N^2), where N is the size of the collection. There also exists a O(N log N) solution, which I will describe also. Look here for it at the section Efficient algorithms.
I will assume the indices of the array are from 0 to N - 1. So let's define DP[i] to be the length of the LIS (Lo...
Convert Python dict into a dataframe
..., is since calling the DataFrame constructor with scalar values (where it expects values to be a list/dict/... i.e. have multiple columns):
pd.DataFrame(d)
ValueError: If using all scalar values, you must must pass an index
You could take the items from the dictionary (i.e. the key-value pairs):
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How to read a file line-by-line into a list?
... remove whitespace characters like `\n` at the end of each line
content = [x.strip() for x in content]
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Sorting a list using Lambda/Linq to objects
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It often happened to me to write complex comparison operators, involving multiple comparison criteria and a failsafe GUID comparison in the end to ensure antisymmetry. Would you use a lambda expression for a complex comparison like that? If not, does this mean tha...