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How can I create a correlation matrix in R?
..., y=seq(dim(y)[2]), z=COR, xlab="x column", ylab="y column")
text(expand.grid(x=seq(dim(x)[2]), y=seq(dim(y)[2])), labels=round(c(COR),2))
Edit:
Here is an example of custom row and column labels on a correlation matrix calculated with a single matrix:
png("corplot.png", width=5, height=5, units="...
Java enum - why use toString instead of name
...re the enum constant, you should use name() as toString may have been overriden
If you want to print the enum constant in a user friendly way, you should use toString which may have been overriden (or not!).
When I feel that it might be confusing, I provide a more specific getXXX method, for examp...
In C#, how can I create a TextReader object from a string (without writing to disk)
...nable result from a CSV parser, not handled well. Try outputting it to a grid-view and see what happens.
– Jon Hanna
Oct 20 '11 at 16:24
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Haskell: Where vs. Let
...Haskell and I am very confused by Where vs. Let . They both seem to provide a similar purpose. I have read a few comparisons between Where vs. Let but I am having trouble discerning when to use each. Could someone please provide some context or perhaps a few examples that demonstrate when to ...
How does Java Garbage Collection work with Circular References?
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Java's GC considers objects "garbage" if they aren't reachable through a chain starting at a garbage collection root, so these objects will be collected. Even though objects may point to each other to form a cycle, they're still garbage i...
Difference between HEAD and master
... also pushing RefSpecs in the Pro Git book.
What you are seeing is the sidebar representing all the refspecs of your remote repo in the Experimental GitX fork of the GitX project.
The HEAD will designate the default branch for that remote.
See git remote set-head man page:
Having a default...
How do I use vi keys in ipython under *nix?
... it is: ESC+CTRL+j. To switch back to Emacs mode one can use C-e but that didn't appear to work for me - I had to instead do M-C-e - on my Mac it is: ESC+CTRL+e.
FYI my ~/.inputrc is set up as follows:
set meta-flag on
set input-meta on
set convert-meta off
set output-meta on
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Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
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public void afterTextChanged(Editable s)
This method is called to notify you that, somewhere within s, the text has been changed. It is legitimate to make further changes to s from this callback, but be careful not to get yourself...
Git: Remove committed file after push
...pushed a commit to GitHub and then I realized that there's a file which I didn't want to be pushed (I haven't finished the changes).
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Ruby: kind_of? vs. instance_of? vs. is_a?
...at's an interesting reason. can you break this, thouugh? like can you override kind_of? but not is_a??
– Claudiu
Oct 8 '10 at 19:38
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