Nelder
Nelder can refer to: *Geoff Nelder, a British author *John Nelder (1924-2010), a British statistician * Nelder, a giant sequoia in California *Nelder Grove, a giant sequoia grove in California *Nelder–Mead method The Nelder–Mead method (also downhill simplex method, amoeba method, or polytope method) is a numerical method used to find the minimum or maximum of an objective function in a multidimensional space. It is a direct search method (based on ...

Nelder Grove
Nelder Grove, formerly known as Fresno Grove when it was within a much larger 19th-century Fresno County, is a Giant sequoia grove located in the western Sierra Nevada within the Sierra National Forest, in Madera County, California. The grove is a tract containing 54 mature Giant Sequoia (''Sequoiadendron giganteum'') trees, the largest concentration of giant sequoias in the Sierra National Forest. The grove also contains several points of historical interest. These include pioneer cabins and giant sequoia stumps left by 19th century loggers. Four hundred mature sequoias lived in Nelder Grove before European Americans arrived. Since then, the population has seen several steep declines. Seventy percent of the mature trees were cut during the late 19th century timber era. The population stabilized under federal protection in the 20th century. Yet, many decades of fire exclusion would prove disastrous for the fire dependent ecosystem. In 2017, the Railroad Fire ignited a dense bu ...
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John Nelder
John Ashworth Nelder (8 October 1924 – 7 August 2010) was a British statistician known for his contributions to experimental design, analysis of variance, computational statistics, and statistical theory. Contributions Nelder's work was influential in statistics. While leading research at Rothamsted Experimental Station, Nelder developed and supervised the updating of the statistical software packages GLIM and GenStat: Both packages are flexible high-level programming languages that allow statisticians to formulate linear models concisely. GLIM influenced later environments for statistical computing such as S-PLUS and R. Both GLIM and GenStat have powerful facilities for the analysis of variance for block experiments, an area where Nelder made many contributions. In statistical theory, Nelder and Wedderburn proposed the generalized linear model. Generalized linear models were formulated by John Nelder and Robert Wedderburn as a way of unifying various other statistical mod ...
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Geoff Nelder
Geoff Nelder is a British freelance editor and author. He has written both fiction and non-fiction, and his research in the field of air pollution and climate won him a fellowship with the Royal Meteorological Society. Nelder's fictional work falls in the genres of science fiction, fantasy and thrillers, and he is known for his sci-fi series ''ARIA'', which won him a ''Preditors & Editors Award for best science fiction novel''. Nelder also published the sci-fi magazine ''Escape Velocity'', which launched in 2009. Prior to moving to writing as his primary occupation, Nelder has worked as a teacher at Queens Park High School for 26 years. In 1975 Nelder became a life member of the British Vegan Society. In 2009 Nelder became a publisher for ''BeWrite Books'', an independent publisher. Awards *''Fellow of the Royal Meteorological Society, Master of Science (Sheffield), Bachelor of Education'' *''Preditors & Editors Award for best science fiction novel'' (''ARIA: Left Luggage'') (2 ...
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Nelder (tree)
Nelder is a giant sequoia located within the Nelder Grove of Sequoia National Forest in California. It is the largest tree in Nelder Grove, the 23rd largest giant sequoia in the world, and could be considered the 22nd largest depending on how badly Ishi Giant atrophied during the Rough Fire in 2015. Description Nelder is located northwest of a hairpin turn along "Graveyard of the Giants Trail" at the end of an unofficial branching trail. The base of the tree, much like the surrounding trees, was charred during the 2017 Railroad Fire. History On July 3, 1859, naturalist Galen Clark, Judge John W. Fitzhugh, and journalist L.A. Holmes discovered the tree while on a hunting expedition in the area. In 1875, prospector-turned-hermit John A. Nelder built a cabin near the tree, which he considered to be the largest in the world. Nelder met naturalist John Muir later that same year, but when Muir measured the tree, he determined it to be smaller than the Grizzly Giant tree of Mariposa Gr ...
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