This goal of Tabstat is to serve as a cli utility that helps in manipulating tabular data (CSV, TSV, etc) and extract
meaningful insight out of it.
-
What are the columns that we have?
-
Total number of rows.
-
Basic stats (reduce) . avg . max . min . Frequency
-
Map . cut (get specific columns) . alias (change column names)
-
filter . filter rows based on specific conditions
tabstat -f “file_name” -e “filter ‘col1=something or col2=somethingelse’ | map ‘score’ | avg”
The above command take a file with given file name and filter all values with given col1/col2 value and takes the score
value for it and averages it.
After checking out the repo,
- Run
bin/setupto install dependencies. - Then, run
rake testto run the tests. - You can also run
bin/consolefor an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.
ruby lib/tabstat.rb -f "<file-name>" -d <delimiter> -e "<expression>"
| Parameter | Purpose | Example |
|---|---|---|
| -f or --file | File on which the utility will have to be executed. | /Users/kannanr/Desktop/projects/7-languages-in-7-weeks/ruby/day3/biostats.csv |
| -e or --exp | Expression containing operations to be executed on the file | max col1 |
Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/tabstat. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.
The gem is available as open source under the terms of the MIT License.
Everyone interacting in the tabstat project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.