Shimadzu .spc file load in R

[chloefouilloux]

Hello,

If you have any time to spare I would be very grateful to receive some guidance with respect to how to load Shimadzu-type .spc files into R. I am new to this community (both coding and spectrophotometry) and any help would be very appreciated!

After reading some of the documentation on GitHub, I have added the "hyperSpec" package to include both :

repos <- c("https://r-hyperspec.github.io/pkg-repo/", getOption("repos"))
install.packages("hySpc.read.txt", repos = repos)
install.packages("hySpc.read.spc", repos = repos)

After loading these new libraries, I've tried to read in a .spc file

hySpc.read.spc::read_spc("EXAMPLE.spc")
Error in .spc_file_hdr(f) : Support for Shimadzu SPC file format (OLE CF) is not yet implemented

I have also tried the txt version

hySpc.read.txt::read_txt_Shimadzu("EXAMPLE.spc")
Error in pos4Li[[i]] <- pos4[tmp] : attempt to select less than one element in integerOneIndex

I have attached an example of the .spc file that I hope to read into R. The overall functionality of hyperSpec seems really cool, so I hope that these files are compatible!

[GegznaV]

@chloefouilloux, as far as I know, Shimadzu file formats are not supported by hyperSpec (if I recall correctly, either their format decoding is kept in secret or we do not know it yet). @cbeleites, @ximeg do you have any suggestions on how to import Shimadzu files?

I have attached an example of the .spc file

@chloefouilloux, could you please reattach the file? GitHub may require to zip the file before attaching.

[GegznaV]

There is a discussion on the old repo:

• Support for SPC files from Shimadzu instruments cbeleites/hyperSpec#102

[chloefouilloux]

Hi again,

Thank you for your quick reply! GitHub doesn't seem to appreciate .spc files, even in zipped format. But here is another shot, I've zipped a folder with a couple of .spc file examples.

Again thank you very much for your help, it is tremendously appreciated!

GITHUB_SPEC.zip

[GegznaV]

@chloefouilloux, what is the model of your spectrometer?

[chloefouilloux]

Hello, it is a Shimadzu (UV-1800)