S. N. Roy

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Samarendra Nath Roy [S. N. Roy] was born in Dhaka, Bangladesh erstwhile East Bengal; he was the first of two children. His father, Kali Nath Roy was a freedom fighter and the Chief Editor of the newspaper "TRIBUNE".

Roy came first in the M.Sc. examinations in applied mathematics at the University of Calcutta.

Professor P. C. Mahalanobis was the director of the new (1931) Indian Statistical Institute at that time. Several talented young scholars including J. M. Sengupta, H. C. Sinha, Raj Chandra Bose, S. N. Roy, K. R. Nair, K. Kishen and C. R. Rao, joined to form an active group of statisticians under Prof. Mahalanobis. S. N. Roy was one of the very early students of Prof. Prasanta Chandra Mahalanobis, who initiated some of the early works in Statistics. His dissertation included the Post master's work at the Indian Statistical Institute where he worked under Mahalanobis.

In the early days at Indian Statistical Institute, Roy, Bose and Mahalanobis collaborately worked in multivariate analysis. Work on theoretical statistics in the Institute gained much momentum from the projects and surveys undertaken by the Institute. S. N. Roy and Raj Chandra Bose proved that the sampling distribution of the studentised D 2 is a non-central F-distribution. S. N. Roy and C. R. Rao made profound contributions to multivariate analysis. Sample surveys also resulted in some seminal work of philosophical depth on randomness and methods of drawing representative samples.

It was Bose who first went to the United States as a visiting professor at Columbia University and the University of North Carolina Chapel Hill in 1947. Roy later joined him at the University of North Carolina Chapel Hill and later became Professor of Statistics. S. N. Roy had 15 doctorate students there from 1951 till 1963.

Some Ph.D. works under S. N. Roy

OLKIN, INGRAM (1951). "On distribution problems in multivariate analysis".
PACHARES, JAMES (1953). "On the distribution of quadratic forms".
PILLAI, K.C. SREEDHARAN (1954). "On some distribution problems in multivariate analysis".
MITRA, SUJIT K. (1956). "Contributions to the statistical analysis of categorical data".
GNANADESIKAN, RAMANATHAN (1957). "Contributions to multivariate analysis including univariate and multivariate variance components analysis and factor analysis".
POTTHOFF, RICHARD F. (1958). "Multi-dimensional incomplete block designs".
DIAMOND, EARL L. (1958). "Asymptotic power and independence of certain classes of tests on categorical data".
BARGMAN, ROLF (1958). "A study of independence and dependence in multivariate normal analysis".
COBB, WHITFIELD (1959). "Studies in univariate and multivariate variance components analysis connected with sampling from a finite population".
BHAPKAR, VASANT P. (1959). "Contributions to the statistical analysis of experiments with one or more responses".
SATHE, YASHAWANDE S. (1962). "Studies in certain types of nonparametric inference".
DAS GUPTA, SOMESH (1963). "Some problems in classification".

External links

Additional background information at [Indian Statistical Institute]

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