117
Reviews
Parker and R. Till. Reading University Geological Reports
Number 10 (1977), 63 p., ISBN 0 7049 0280 X Cost. £0.75.
BASIC programs for calculating specific gravity, bulk
density and water content from direct measurements are
included. A number of BASIC and FORTRAN programs
for file manipulation deriving geotechnical properties,
interpolation of missing values and output of data, form
the remainder of the collection.
Programs in BASIC for Simple Correlation and Regression (with worked examples) by R. Till (with programs by
S. Watts). Reading University Geological Reports 11
(1977), 62 p., ISBN 0 7049 0281 8, Cost. £0.75.
This collection comprises BASIC programs is for
(a) calculating and testing the significance of a correlation coefficient,
(b) producing a histogram of r-value generated from
random numbers,
(c) generating r-values from random numbers,
(d) regression line calculation,
(e)
(f)
(g)
(h)
graphical display of regression,
reduced major axis line calculation,
generating a correlation half-matrix, and
graphical display of a histogram.
Programs in BASIC for Non-Linear and Multivariate
Least.Squares Methods (with worked examples) by R. Till
(with programs by D. Cowan, M. Moss and S. Watts).
Reading University Geological Reports 12 (1977), 87 p.,
ISBN 0 7049 0282 6 Cost. £1.50.
Programs for polynomial, multiple and step-wise multiple
regression are included along with trend-surface analysis
and graphical display of bivariate plots, contour maps
and trend surfaces.
Department o[ Geology,
Syracuse University,
Syracuse,New York 13210, U.S.A.
JOI~N M. CUBITT