[R] what exactly is the dim of data set yarn in package "pls"?

Jeff Newmiller jdnewmil at dcn.davis.ca.us
Sun Oct 7 03:57:49 CEST 2012


Perhaps what is wrong is that you need to learn when to use the str() function.

str(yarn)
---------------------------------------------------------------------------
Jeff Newmiller                        The     .....       .....  Go Live...
DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live Go...
                                      Live:   OO#.. Dead: OO#..  Playing
Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
/Software/Embedded Controllers)               .OO#.       .OO#.  rocks...1k
--------------------------------------------------------------------------- 
Sent from my phone. Please excuse my brevity.

C W <tmrsg11 at gmail.com> wrote:

>Hi list,
>I am looking at the data yarn in package, I don't understand what is
>dimension of this data set.
>
>I did the following:
>> library(pls)
>
>> data(yarn)
>
>> dim(yarn)
>
>[1] 28  3
>
>> head(yarn)
>
>  NIR.1   NIR.2   NIR.3   NIR.4   NIR.5   NIR.6   NIR.7   NIR.8   NIR.9
>NIR.10  NIR.11
>
>1 3.06630 3.08610 3.10790 3.09720 2.99790 2.82730 2.62330 2.40390
>2.19310
>2.00580 1.83790
>
>2 3.06750 3.08570 3.09580 3.06920 2.98180 2.84080 2.67600 2.50590
>2.35060
>2.22300 2.11920
>
>3 3.07500 3.09660 3.09160 3.02880 2.88490 2.68850 2.47640 2.26940
>2.08240
>1.91950 1.77470
>
>4 3.08280 3.09730 3.10100 3.07350 2.99130 2.87090 2.73920 2.61020
>2.50000
>2.42370 2.37740
>
>5 3.10290 3.10340 3.08480 3.02280 2.89270 2.71590 2.53840 2.37640
>2.23970
>2.13460 2.05340
>
>6 3.08150 3.08490 3.04870 2.93050 2.73230 2.50890 2.29440 2.09950
>1.93280
>1.79250 1.66930
>
>There were 270 columns, I only copy pasted the first 11 columns.  But
>either way, this is NOT 3 columns.
>
>Could anyone let me know what is wrong here?
>
>Thanks in advance,
>Mike
>
>	[[alternative HTML version deleted]]
>
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