This function lists and reads parquet files from an S3 bucket for a given set of site names. The data is processed to group by date and summarize numeric columns.
Arguments
- site_names
A character vector containing site names for which to read parquet files.
- bucket_name
A character string representing the name of the S3 bucket.
- prefix
A character string representing the prefix path in the S3 bucket.
- region
A character string representing the AWS region. Default is `"us-west-2"`.