[R] paran package - error message

[Rui Barradas]

Hello,

Inline.

Às 09:00 de 26/08/20, PIKAL Petr escreveu:
> Hi
> 
> IS is data frame so it is not numeric.
> 
> try str(IS) to see structure of your data.
> maybe just
> 
> mat.IS <- as.matrix(IS)
> 
> gives you desired result, but it depends on (undisclosed) IS structure
> 
> BTW, do not use html formatting, it is useless in this list
> 
> BTW2, you should spend at least few minutes to read basic docs, kindly
> offered by R-core in doc directory, especially R-intro which gives you quick
> info about objects and their properties.
> 
> BTW3, your read.table is lacking header and sep and maybe dec specification
> so I doubt it reads your data properly.

Since the file is a csv file (or at least its extension is) read.csv 
should solve those issues.

To the OP: read.csv is a way to call read.table but deliberately made 
inflexible. It sets some arguments to values other than their defaults, 
including

header = TRUE
sep = ","
fill = TRUE

The default dec = "," is the same. If you are reading files coming from 
countries like mine where the decimal separator is a comma read.csv2 
sets the values sep = ";" and dec = ",".

Read help("read.csv"), the difference from read.table is well explained.


Hope this helps,

Rui Barradas
> 
> Cheers
> Petr
> 
>> -----Original Message-----
>> From: R-help <r-help-bounces using r-project.org> On Behalf Of Lee, Deborah
>> Sent: Monday, August 24, 2020 12:52 PM
>> To: r-help using r-project.org
>> Subject: [R] paran package - error message
>>
>> I am trying to using the "paran" package in R for Horn's parallel
> analysis.
>> According to the "paran" manual, the highlighted yellow ought to be a
>> numerical matrix or data frame. It looks like this should be the file
> name. Is
>> there something that I need to do
>>
>> install.packages("paran")
>> library(paran)
>>
>> IS<- read.table ("C:/Users/Deborah Lee/Documents/R/IS.csv") paran(IS,
>> cfa=TRUE, graph=TRUE, color=TRUE, col=c("black", "red", "blue"))
>>
>> When I run the code above, I get the error message below.
>> in cor(x) : 'x' must be numeric
>>
>> How do I set up my data (csv) file itself to make this a numerical matrix?
> (FYI:
>> row 1 for headers for variables names).
>>
>> Thank you for your help.
>>
>>
>> Deborah D. Lee, PhD
>> Associate Director of Student Affairs Research and Assessment The
>> Pennsylvania State University
>>
>> 105 White Building
>> University Park, PA 16802
>> (814) 863-9609
>>
>>
>> 	[[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-
>> guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>> ______________________________________________
>> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.