[R] Alternative to Scale Function?

2009-09-11 Thread Noah Silverman
Hi, Is there an alternative to the scale function where I can specify my own mean and standard deviation? I've come across an interesting issue where this would help. I'm training and testing on completely different sets of data. The testing set is smaller than the training set. Using

Re: [R] Alternative to Scale Function?

2009-09-11 Thread Noah Silverman
I think I just answered my own question. The scale function will return the mean and sd of the data. So the process is fairly simple. scale training data varaible note mean and sd from the scale then manually scale the test data using the mean and sd from the training data. That should make

Re: [R] Alternative to Scale Function?

2009-09-11 Thread Gavin Simpson
On Fri, 2009-09-11 at 13:10 -0700, Noah Silverman wrote: Hi, Is there an alternative to the scale function where I can specify my own mean and standard deviation? A couple of calls to sweep? See ?sweep set.seed(123) dat - data.frame(matrix(runif(10*10), ncol = 10)) xbar - colMeans(dat)

Re: [R] Alternative to Scale Function?

2009-09-11 Thread Mark Difford
The scale function will return the mean and sd of the data. By default. Read ?scale. Mark. Noah Silverman-3 wrote: I think I just answered my own question. The scale function will return the mean and sd of the data. So the process is fairly simple. scale training data varaible

Re: [R] Alternative to Scale Function?

2009-09-11 Thread Noah Silverman
Genius, That certainly is much faster that what I had worked out on my own. I looked at sweep, but couldn't understand the rather thin help page. Your example makes it really clear Thank You!!! -- Noah On 9/11/09 1:57 PM, Gavin Simpson wrote: On Fri, 2009-09-11 at 13:10 -0700, Noah