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Adding days to $Date in PHP
I have a date returned as part of a mySQL query in the form 2010-09-17
9 Answers
9
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How to refresh app upon shaking the device?
I need to add a shake feature that will refresh my Android application.
16 Answers
16
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Intelligent point label placement in R
1) Is there any R library/function which would implement INTELLIGENT label placement in R plot? I tried some but they are all problematic - many labels are overlaping either each other or other points (or other objects in the plot, but I see that this is much harder to handle).
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Checking for empty arrays: count vs empty
This question on ' How to tell if a PHP array is empty ' had me thinking of this question
12 Answers
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Iterating over a numpy array
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I think you're looking for the ndenumerate.
>>> a =numpy.array([[1,2],[3,4],[5,6]])
>>> for (x,y), value in numpy.ndenumerate(a):
... print x,y
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0 0
0 1
1 0
1 1
2 0
2 1
Regarding the performance. It is a bit...
Force the origin to start at 0
How can I set the origin / interception of the y-axis and x-axis in ggplot2?
3 Answers
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How do I declare a 2d array in C++ using new?
How do i declare a 2d array using new?
24 Answers
24
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Representing and solving a maze given an image
What is the best way to represent and solve a maze given an image?
10 Answers
10
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What would cause an algorithm to have O(log n) complexity?
My knowledge of big-O is limited, and when log terms show up in the equation it throws me off even more.
6 Answers
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Increase number of axis ticks
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You can override ggplots default scales by modifying scale_x_continuous and/or scale_y_continuous. For example:
library(ggplot2)
dat <- data.frame(x = rnorm(100), y = rnorm(100))
ggplot(dat, aes(x,y)) +
geom_point()
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