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Change IPython/Jupyter notebook working directory
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edited Feb 11 '18 at 16:49
Brad Solomon
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an...
Can you attach a UIGestureRecognizer to multiple views?
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answered Apr 6 '11 at 14:07
TomSwiftTomSwift
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java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
... Oleg VaskevichOleg Vaskevich
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How do you tell if caps lock is on using JavaScript?
...e.shiftKey;
} else if (e.modifiers) {
shifton = !!(e.modifiers & 4);
}
if (charCode >= 97 && charCode <= 122 && shifton) {
return true;
}
if (charCode >= 65 && charCode <= 90 && !shifton) {
return true;
}
return false;
}
F...
R memory management / cannot allocate vector of size n Mb
...ate the object you need in one session.
If the above cannot help, get a 64-bit machine with as much RAM as you can afford, and install 64-bit R.
If you cannot do that there are many online services for remote computing.
If you cannot do that the memory-mapping tools like package ff (or bigmemo...
How to call an async method from a getter or setter?
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Stephen ClearyStephen Cleary
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How to remove all whitespace from a string?
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## [3] " \t\n\r\v\fx \t\n\r\v\fy \t\n\r\v\f"
## [4] NA
The base R approach: gsub
gsub replaces all instances of a string (fixed = TRUE) or regular expression (fixed = FALSE, the default) with another string. To remove all spaces, use:
gsub(" ", "", x, fixed = TRUE)
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Plot two histograms on single chart with matplotlib
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443
Here you have a working example:
import random
import numpy
from matplotlib import pyplot
x ...
Why historically do people use 255 not 256 for database field magnitudes?
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answered Feb 26 '10 at 9:44
Greg HewgillGreg Hewgill
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How to add a new row to datagridview programmatically
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edited Apr 20 '16 at 14:11
answered Apr 8 '12 at 15:07
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