Frequencies for first 10,000 rows of measurename variable in hqi_hosp_img datas Measure Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- Abdomen CT Use of Contrast Material | 1,666 16.66 16.66 MRI Lumbar Spine for Low Back Pain | 1,666 16.66 33.32 Mammography Follow-up Rates | 1,667 16.67 49.99 Outpatients who got cardiac imaging s.. | 1,667 16.67 66.66 Outpatients with brain CT scans who g.. | 1,667 16.67 83.33 Thorax CT Use of Contrast Material | 1,667 16.67 100.00 ----------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 15 Nov 2016