FROM the preface we infer that the author has set out with the object of providing engineering students with a text-book of small compass in which the elementary parts of statics are treated on a ...

IT is difficult to reconcile Mr. Milne's opening statement (NATURE, May 5, p. 5) with the rest of his letter. He begins by venturing to think that no one will gainsay Mr. W. Larden's main contention ...

We consider the problem of locating jumps in regression surfaces. A jump detection algorithm is suggested based on local least squares estimation. This method requires O(Nk) computations, where N is ...

This paper reviews the range of graphical methods available for use with nonparametric procedures, and provides examples of the use of many of the methods under the broad groupings: two-sample ...