On this Picostat.com statistics page, you will find information about the voucher data set which pertains to voucher. The voucher data set is found in the wooldridge R package. You can load the voucher data set in R by issuing the following command at the console data("voucher"). This will load the data into a variable called voucher. If R says the voucher data set is not found, you can try installing the package by issuing this command install.packages("wooldridge") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the voucher R data set. The size of this file is about 44,092 bytes.
Data loads lazily. Type data(voucher) into the console.
A data.frame with 990 rows and 19 variables:
studyid. student identifier
black. = 1 if African-American
hispanic. = 1 if Hispanic
female. = 1 if female
appyear. year of first application: 90 to 93
mnce. math NCE test score, 1994
select. = 1 if ever selected to attend choice school
Picostat is a web-based opensource statistical application framework based on Drupal 8 and ℝ. Drupal can be used to manage user datasets and perform basic statistical analysis with a NoCode end-user interface ideal for non-technical users. Custom applications can be easily integrated into the system using webforms and ℝ language syntax.