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passing several arguments to FUN of lapply (and others *apply)
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122
If you look up the help page, one of the arguments to lapply is the mysterious .... When we lo...
How can I save an image with PIL?
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147
The error regarding the file extension has been handled, you either use BMP (without the dot) ...
Java JUnit: The method X is ambiguous for type Y
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edited Dec 11 '13 at 9:45
Girish Nair
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Merge Images Side by Side(Horizontally)
I have five images of sizes: 600x30, 600x30, 600x30, 600x30, 810x30. Their names are: 0.png, 1.png, 2.png, 3.png, 4.png, respectively.
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Appending to an empty DataFrame in Pandas?
...ata = pd.DataFrame({"A": range(3)})
>>> df.append(data)
A
0 0
1 1
2 2
But the append doesn't happen in-place, so you'll have to store the output if you want it:
>>> df
Empty DataFrame
Columns: []
Index: []
>>> df = df.append(data)
>>> df
A
0 0
1 1
2 ...
Python's “in” set operator
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101
Yes, but it also means hash(b) == hash(x), so equality of the items isn't enough to make them ...
Redirect to named url pattern directly from urls.py in django?
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198
If you are on Django 1.4 or 1.5, you can do this:
from django.core.urlresolvers import revers...
Specify width in *characters*
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1em is the height of an M, rather than the width. Same holds for ex, which is the height of an x. More generally speaking, these are the heights of uppercase and lowercase letters.
Width is a totally different issue....
Cha...
How to add item to the beginning of List?
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Matt HamiltonMatt Hamilton
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