[R] Readxl Question

[Thomas Subia]

Colleagues,

I am using readxl to extract a serial number and its associated data using the following code.

library(readxl)
files <- list.files(pattern="*.xls", full.names = FALSE)
serials <- lapply(files, read_excel, sheet="Flow Data", range=("c6"))
flow.datum <- lapply(files, read_excel, sheet="Flow Data", range=("c22:c70"))
dates <- lapply(files, read_excel, sheet="Flow Data", range=("h14"))

Here each serial and date is associated with 49 data points in flow.datum.

Now I write the serials, flow data and dates into a text file using:

datesdf <- as.data.frame(dates)
mydates <- list(datesdf)
write.table(mydates,"dates.txt",sep="\t")

serialdf <- as.data.frame(serials)
myserials <- list(serialdf)
write.table(myserials,"serials.txt",sep="\t")

flowdf <-as.data.frame(flow.datum)
myflow <- list(flowdf)
write.table(myflow,"myflow.txt",sep=",")

The problem with the dates.txt and the serials.txt is that they need to associated with its 49 corresponding values in myflow.txt.

The objective is to create a text file having this format:

Serial	Date	Flow

I'm not sure how to do this. Any suggestions would be appreciated.

Thomas Subia 
Statistician / Senior Quality Engineer
ASQ CQE

IMG Companies 
225 Mountain Vista Parkway
Livermore, CA 94551
T. (925) 273-1106
F. (925) 273-1111
E. tsubia using imgprecision.com


Precision Manufacturing for Emerging Technologies
imgprecision.com 

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