R help - Apr 2015 - How to solve: error in file(file, "rt") : invalid 'description' argument

Hi thank you in advance for your assistance.?

I am using the following section of script:?

DirPath_folder?
<-Sys.glob(file.path("/Users/catpeters/Documents/R_working_directory/1_Data_MC_Sorted"))?

for (folder in 1: length(DirPath_folder)) {?

# ## EVERY Control and Impact #?
DirPath_Matrix <-Sys.glob(file.path(DirPath_folder[folder],?
"*Markov_Matrix_Month.txt"))?

data <- read.table(DirPath_Matrix, header = TRUE, sep = ";")?

if (folder ==1) { DATA_ALL1 <- data } else { DATA_ALL1 <-
rbind(DATA_ALL1,?
data) }?

if (folder == length(DirPath_folder)) {?
setwd("/Users/catpeters/Documents/R_working_directory/1_Data_MC_Sorted")?
write.table(DATA_ALL1 ,"Matrix_Markov_ALL_MONTH_RB.txt" ,
col.names=TRUE,?
row.names=FALSE, sep=";") write.table(DATA_ALL1?
,"Matrix_Markov_ALL_MONTH_RB.csv" , col.names=TRUE, row.names=FALSE,?
sep=";") } }?

There seems to be a problem with: data <- read.table(DirPath_Matrix, header?
= TRUE, sep = ";"). When run it returns the Error in file(file,
"rt") :?
invalid 'description' argument. This has worked previously and I'm
not sure?
where the error is.?

Thanks again?
	[[alternative HTML version deleted]]

If you google for "invalid 'description' argument" it should
be pretty clear what's going on - most likely your DirPath_Matrix is not a
single item.

B.


On Apr 28, 2015, at 7:02 PM, catherine peters <catherine.h.peters at
googlemail.com> wrote:
> Hi thank you in advance for your assistance. 
> 
> I am using the following section of script: 
> 
> DirPath_folder 
>
<-Sys.glob(file.path("/Users/catpeters/Documents/R_working_directory/1_Data_MC_Sorted"))
> 
> for (folder in 1: length(DirPath_folder)) { 
> 
> # ## EVERY Control and Impact # 
> DirPath_Matrix <-Sys.glob(file.path(DirPath_folder[folder], 
> "*Markov_Matrix_Month.txt")) 
> 
> data <- read.table(DirPath_Matrix, header = TRUE, sep = ";") 
> 
> if (folder ==1) { DATA_ALL1 <- data } else { DATA_ALL1 <-
rbind(DATA_ALL1,
> data) } 
> 
> if (folder == length(DirPath_folder)) { 
>
setwd("/Users/catpeters/Documents/R_working_directory/1_Data_MC_Sorted")
> write.table(DATA_ALL1 ,"Matrix_Markov_ALL_MONTH_RB.txt" ,
col.names=TRUE,
> row.names=FALSE, sep=";") write.table(DATA_ALL1 
> ,"Matrix_Markov_ALL_MONTH_RB.csv" , col.names=TRUE,
row.names=FALSE,
> sep=";") } } 
> 
> There seems to be a problem with: data <- read.table(DirPath_Matrix,
header
> = TRUE, sep = ";"). When run it returns the Error in file(file,
"rt") :
> invalid 'description' argument. This has worked previously and
I'm not sure
> where the error is. 
> 
> Thanks again 
> 	[[alternative HTML version deleted]]
> 
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