R-Code: The costs of diversity: higher prices for more diverse grassland seed mixtures

We provide here the R-code for reproducing Schaub et al (2021a).

The code is structured into

• 'seed_price_master.R': the master R script
  
• 'seed_price_des_analysis.R': runs the descriptive analysis, including the Upset approach
  
• 'seed_price_lin_model.R': runs the linear analysis of the relationship between seed prices and plant diversity
  

In order to run the analysis you need to

1. create a project folder and within this main folder you need to create a sub-folder called 'r_code', in which you save all provided r scripts.
   
2. specify your main working directory (i.e., 'wd_code') in the R script 'seed_price_master.R'.
   
3. Now you can run the R script 'seed_price_master.R', which downloads the data automatically and reproduces our analysis.

The data of the paper can be found under Schaub et al. (2021b) (https://doi.org/10.3929/ethz-b-000485215)

References:

Schaub, S., Finger, R., Buchmann, N., Steiner, V., & Klaus, V. H. (2021a). The costs of diversity: higher prices for more diverse grassland seed mixtures. Environmental Research Letters, 16(9), 094011. https://doi.org/10.1088/1748-9326/ac1a9c

Schaub, S., Finger, R., Buchmann, N., Steiner, V., & Klaus, V. H. (2021b). Data: German and Swiss seed mixture prices and characteristics. ETH Research Collection. https://doi.org/10.3929/ethz-b-000485215