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How to learn R as a programming language [closed]
... might want to look at this article by John Cook. Also make sure that you read "The R Inferno".
There are many good resources on the R homepage, but in particular, read "An Introduction to R" and "The R Language Definition".
Some very closely related stackoverflow questions:
books-for-learning-...
Most underused data visualization [closed]
...y agree with the other posters: Tufte's books are fantastic and well worth reading.
First, I would point you to a very nice tutorial on ggplot2 and ggobi from "Looking at Data" earlier this year. Beyond that I would just highlight one visualization from R, and two graphics packages (which are no...
Byte[] to InputStream or OutputStream
...rce = ...;
ByteArrayInputStream bis = new ByteArrayInputStream(source);
// read bytes from bis ...
ByteArrayOutputStream bos = new ByteArrayOutputStream();
// write bytes to bos ...
byte[] sink = bos.toByteArray();
Assuming that you are using a JDBC driver that implements the standard JDBC Blob i...
Send a file via HTTP POST with C#
I've been searching and reading around to that and couldn't fine anything really useful.
8 Answers
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Why does volatile exist?
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volatile is needed if you are reading from a spot in memory that, say, a completely separate process/device/whatever may write to.
I used to work with dual-port ram in a multiprocessor system in straight C. We used a hardware managed 16 bit value as a se...
jquery change class name
...r dom object. How do I grab the td's id and change its class? - maybe i am reading it wrong, maybe he means use the td's id to change the class...
– Bob Fincheimer
Aug 10 '10 at 19:59
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R command for setting working directory to source file location in Rstudio
...uments/proyect1").
Once you set that, you can navigate to a subdirectory: read.csv("DATA/mydata.csv"). Is the same as read.csv("D:/Documents/proyect1/DATA/mydata.csv").
If you want to navigate to a parent folder, you can use "../".
For example: read.csv("../olddata/DATA/mydata.csv") which is the ...
Controlling fps with requestAnimationFrame?
..., draw the next frame
if (elapsed > fpsInterval) {
// Get ready for next frame by setting then=now, but also adjust for your
// specified fpsInterval not being a multiple of RAF's interval (16.7ms)
then = now - (elapsed % fpsInterval);
// Put your drawing co...
How do I make a text input non-editable?
...
<input type="text" value="3" class="field left" readonly>
No styling necessary.
See <input> on MDN https://developer.mozilla.org/en/docs/Web/HTML/Element/input#Attributes
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What is LDAP used for?
...ds or phonebooks. When you have a task that requires “write/update once, read/query many times”, you might consider using LDAP. LDAP is designed to provide extremely fast read/query performance for a large scale of dataset. Typically you want to store only a small piece of information for each e...