| Data manipulation with R P Spector Springer Science & Business Media, 2008 | 266 | 2008 |
| Revised WIC food package improves diets of WIC families SE Whaley, LD Ritchie, P Spector, J Gomez Journal of nutrition education and behavior 44 (3), 204-209, 2012 | 187 | 2012 |
| Participation in the child and adult care food program is associated with more nutritious foods and beverages in child care LD Ritchie, M Boyle, K Chandran, P Spector, SE Whaley, P James, ... Childhood Obesity (Formerly Obesity and Weight Management) 8 (3), 224-229, 2012 | 152 | 2012 |
| Dietary Patterns in Adolescence Are Related to Adiposity in Young Adulthood in Black and White Females2 LD Ritchie, P Spector, MJ Stevens, MM Schmidt, GB Schreiber, ... The Journal of nutrition 137 (2), 399-406, 2007 | 150 | 2007 |
| Introduction to S and S-Plus P Spector Wadsworth Publ. Co., 1995 | 148 | 1995 |
| Favorable impact of nutrition education on California WIC families LD Ritchie, SE Whaley, P Spector, J Gomez, PB Crawford Journal of nutrition education and behavior 42 (3), S2-S10, 2010 | 93 | 2010 |
| An Introduction to the SAS system P Spector University of California, Berkeley, 2003 | 10 | 2003 |
| An introduction to R P Spector University of California, Berkeley, 2004 | 8 | 2004 |
| acepack: ACE and AVAS for selecting multiple regression transformations P Spector, J Friedman, R Tibshirani, T Lumley, S Garbett, J Baron R package version 1 (1), 85, 2016 | 7 | 2016 |
| Nutrition and physical activity environments in licensed child care: A statewide assessment of California K Hecht, K Chandran, S Samuels, P Crawford, L Ritchie, P Spector Retrieved from University of California, Berkeley, Centre For Weight …, 2009 | 7 | 2009 |
| Stat 133 Class Notes P Spector University of California, Barkeley,< http://www. stat. berkeley. edu/~ s133 …, 2011 | 6 | 2011 |
| Nutrition and physical activity environments in licensed child care K Hecht, JK Chandran, S Samuels, P Crawford, L Ritchie, P Spector A Statewide Assessment of California, 2009 | 3 | 2009 |
| Package ‘acepack’ P Spector, J Friedman, R Tibshirani, T Lumley | 1 | 2016 |
| Subscripting P Spector Data Manipulation with R, 75-85, 2008 | 1 | 2008 |
| Character manipulation P Spector Data manipulation with R, 87-99, 2008 | 1 | 2008 |
| Reading and writing data P Spector Data manipulation with R, 13-41, 2008 | 1 | 2008 |
| Data Mining Using SAS Applications P Spector Journal of the American Statistical Association 99 (466), 571-572, 2004 | 1 | 2004 |
| Reshaping Data P Spector Data Manipulation with R, 131-147, 2008 | | 2008 |
| R and Databases P Spector Data Manipulation with R, 43-56, 2008 | | 2008 |
| Data in R P Spector Data Manipulation with R, 1-11, 2008 | | 2008 |
