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Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le
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131
Use the model.matrix function:
model.matrix( ~ Species - 1, data=iris )
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Pandas get topmost n records within each group
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3 Answers
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Active
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Remove rows with all or some NAs (missing values) in data.frame
...ul mmus rnor cfam
2 ENSG00000199674 0 2 2 2 2
6 ENSG00000221312 0 1 2 3 2
na.omit is nicer for just removing all NA's. complete.cases allows partial selection by including only certain columns of the dataframe:
> final[complete.cases(final[ , 5:6]),]
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Map over object preserving keys
...ap the values and preserve the keys.
_.mapObject({ one: 1, two: 2, three: 3 }, function (v) { return v * 3; });
// => { one: 3, two: 6, three: 9 }
DEMO
With Lodash
Lodash provides a function _.mapValues to map the values and preserve the keys.
_.mapValues({ one: 1, two: 2, three: 3 }, fu...
Jasmine.js comparing arrays
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346
Just did the test and it works with toEqual
please find my test:
http://jsfiddle.net/7q9N7/3...
Convert from ASCII string encoded in Hex to plain ASCII?
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233
A slightly simpler solution:
>>> "7061756c".decode("hex")
'paul'
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How to handle exceptions in a list comprehensions?
...rtelli
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What's the function like sum() but for multiplication? product()?
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Update:
In Python 3.8, the prod function was added to the math module. See: math.prod().
Older info: Python 3.7 and prior
The function you're looking for would be called prod() or product() but Python doesn't have that function. So, you need...
How to get Maven project version to the bash command line
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answered Aug 23 '10 at 7:06
Pascal ThiventPascal Thivent
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Git Diff with Beyond Compare
I have succeeded in getting git to start Beyond Compare 3 as a diff tool however, when I do a diff, the file I am comparing against is not being loaded. Only the latest version of the file is loaded and nothing else, so there is nothing in the right pane of Beyond Compare.
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