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Cleaning `Inf` values from an R dataframe
...x, is.infinite(x),NA)))
Option 2 -- data.table
You could use data.table and set. This avoids some internal copying.
DT <- data.table(dat)
invisible(lapply(names(DT),function(.name) set(DT, which(is.infinite(DT[[.name]])), j = .name,value =NA)))
Or using column numbers (possibly faster if th...
C++ template constructor
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As far as I understand, it's impossible to have it (because it would conflict with the default constructor - am I right?)
You are wrong. It doesn't conflict in any way. You just can't call it ever.
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What do I use for a max-heap implementation in Python?
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The easiest way is to invert the value of the keys and use heapq. For example, turn 1000.0 into -1000.0 and 5.0 into -5.0.
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How to center a Window in Java?
... answered Sep 28 '08 at 0:49
Andrew SwanAndrew Swan
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What is “Orthogonality”?
...em would be a radio, where changing the station does not change the volume and vice-versa.
A non-orthogonal system would be like a helicopter where changing the speed can change the direction.
In programming languages this means that when you execute an instruction, nothing but that instruction ...
What is getattr() exactly and how do I use it?
...is that I still can't grasp the idea of its usage. The only thing I understand about getattr() is that getattr(li, "pop") is the same as calling li.pop .
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How to install therubyracer gem on 10.10 Yosemite?
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It's also worth mentioning that if you're using a Gemfile and still having trouble installing therubyracer, it's probably because there's a different version of libv8 that's already been added to the Gemfile.lock. Just add gem 'libv8', '3.16.14.3' (or whatever is the exact version o...
Remove xticks in a matplotlib plot?
I have a semilogx plot and I would like to remove the xticks. I tried:
9 Answers
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Convert integer into byte array (Java)
...order ensures that result[0] == 0xAA, result[1] == 0xBB, result[2] == 0xCC and result[3] == 0xDD.
Or alternatively, you could do it manually:
byte[] toBytes(int i)
{
byte[] result = new byte[4];
result[0] = (byte) (i >> 24);
result[1] = (byte) (i >> 16);
result[2] = (byte) (i ...
Command line progress bar in Java
I have a Java program running in command line mode.
I would like to display a progress bar, showing the percentage of job done.
The same kind of progress bar you would see using wget under unix.
Is this possible?
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