Hi - a newbie question, if someone can please help
I want to change X1, X2,,.to X.1 X.2 etc in the names below. I am using
the Principal Component Regression function (pcr) and it seems to want it
this way
datap3.pcr - pcr(water ~ X, 10, data = datap3, Validation =cv)
Error in
Is this what you want:
x - paste(X, 1:10, sep='')
x
[1] X1 X2 X3 X4 X5 X6 X7 X8 X9 X10
sub(X, X., x)
[1] X.1 X.2 X.3 X.4 X.5 X.6 X.7 X.8 X.9 X.10
On Mon, May 10, 2010 at 8:53 PM, Ravi Ramaswamy raram...@gmail.com wrote:
Hi - a newbie question, if someone can please
Jim - thanks.
It worked, however pcr program is still not accepting it there is a
sample yarn data loaded and I am comparing. My data looks like this
X1 X2 X3 X4 X5 X6 X7
X8 X9 X10 X11 X12 X13 X14 X15 X16 X17
You need to provide an 'str(yarn)' so we can see what the structure is. I
don't know what the 'pcr' program is expecting, but it looks like from what
you have provided that 'yarn' might be a dataframe and X is a vector.
Look at the documentation for pcr and see what it expects.
On Mon, May 10,
There is definitely a difference. The pcr program is Principal Component
Regression, but document says
The formula argument should be a symbolic formula of the form response ~
terms, where response is the name of the response vector or matrix (for
multi-response models) and terms is the name of
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