How many OER are there?

Jonathan A. Poritz

Eventually, I'll port this to HTML, but at the moment it is only available as PDF or, for those who want to remix, in the original LATEX source.

Here is the PDF version.

And here are the files one needs to make this with LATEX:

  1. The actual source: howmanyOER.tex.
  2. Required image files:
    1. CCcircle.pdf
    2. BYcircle.pdf
    3. SAcircle.pdf
    4. poritz_net_jonathan_qr-code_colorful.pdf
    5. CC-BY-SA.pdf
    6. spectrum.pdf
    7. OTL_scatterplot.pdf
    8. OTL_exp_reg.pdf
    9. OTL_lin_reg.pdf
    10. BC_scatterplot.pdf
    11. BC_exp_reg.pdf
    12. BC_lin_reg.pdf
    13. OpenStax_scatterplot.pdf
    14. OpenStax_exp_reg.pdf
    15. OpenStax_lin_reg.pdf
    16. DOAB_scatterplot.pdf
    17. DOAB_regressions.pdf

On my machine, which is running Linux Mint "20.3 (Una)" and which has a quite complete suite of texlive packages (including, crucially, texlive-base and texlive-latex-base; other required LATEX packages will be obvious to anyone who knows LATEX when looking at the \includepackage commands in the howmanyOER.tex source file), at the command line, I do the following in a directory containing the above files:

          pdflatex howmanyOER
          pdflatex howmanyOER
          pdflatex howmanyOER

If you want just to download one archive with all of those files in it, you could use either of the following two choices:

If you want to be able to make the images in those slides yourself, you will need a machine with a fairly recent Python installation (actually Python3), including the packages

  1. argparse,
  2. csv,
  3. matplotlib, and
  4. numpy
— which are all quite standard.

Two scripts that I used, then, are

  1. and
These scripts are both released under a GPLv3 license.

I also used the marc3excel (Python) tool to prepare some of the data, as mentioned in the slides.

For reproducibility, here are the versions of the data files I used, which I either got from various websites as described in the slide deck or made myself, starting from those public data releases:

  1. OTL.csv
  2. otl_copyright_years
  3. BCopentextbooks_RDA_fullset_Q2_June30_2022.mrc
  4. BCopentextbooks_RDA_fullset_Q2_June30_2022.xlsx
  5. BCcampus_copyright_years
  6. OpenStax_pyears
  7. repository-export.csv
  8. DOAB_iyears