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Gradient of n colors ranging from color 1 and color 2
I often work with ggplot2 that makes gradients nice ( click here for an example ). I have a need to work in base and I think scales can be used there to create color gradients as well but I'm severely off the mark on how. The basic goal is generate a palette of n colors that ranges from x colo...
Adding a new array element to a JSON object
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242
JSON is just a notation; to make the change you want parse it so you can apply the changes to ...
How to get the index of a maximum element in a numpy array along one axis
I have a 2 dimensional NumPy array. I know how to get the maximum values over axes:
4 Answers
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Join a list of strings in python and wrap each string in quotation marks
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answered Aug 17 '12 at 14:28
jamylakjamylak
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in_array multiple values
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200
Intersect the targets with the haystack and make sure the intersection is precisely equal to t...
how to calculate binary search complexity
...rer as informal ones:
The question is, how many times can you divide N by 2 until you have 1? This is essentially saying, do a binary search (half the elements) until you found it. In a formula this would be this:
1 = N / 2x
multiply by 2x:
2x = N
now do the log2:
log2(2x) = l...
Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
...s in the array, despite h[1] still giving us a value? Here’s a hint:
h[42] #=> ["a", "b"]
The array returned by each [] call is just the default value, which we’ve been mutating all this time so now contains our new values. Since << doesn’t assign to the hash (there can never be a...
Integrate ZXing in Android Studio
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I was integrating ZXING into an Android application and there were no good sources for the inp...
How to run cron job every 2 hours
...n I write a Crontab that will run my /home/username/test.sh script every 2 hours?
5 Answers
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How do I install an old version of Django on virtualenv?
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142
There was never a Django 1.0.7. The 1.0 series only went up to 1.0.4. You can see all the releas...