inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (166 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Principal components analysis, factor analysis, and point coordinates in the study of multivariate allometry in Geomathematical and petrophysical studies in Sedimentology. An international Symposium.
  • Multivariate generalizations of the bivariate allometric equations are provided by the principal components or factors derived from a covariance matrix of the logarithms of the original measurements.
  • 1979
  • Az ipari fejlettség területi külonbségeinek vizsgalata Békés megyében faktoranalizis segitségével. (Regional differences in the level of industrial development in Békés county-an approach based on factor analysis)
  • The level of industrial development in the settlements of Békés county was studies by the method of principal components analysis of factor analysis. The study is based on 10 selected indexes for the year 1977. (CK).
  • 1979
  • Szolnok megye falusi településeinek tipusai. (Rural settlement types of Szolnok county. A study of processes affecting settlement development with the help of factor and cluster analysis)
  • 1979
  • This study offers an example of regression following factor analysis. In substituting correspondence analysis for the principal components analysis of Imbrie and Kipp, the A. improves on the results of them: firtsly, he obtains higher correlation
  • 1979
  • Typologia funkcjonalna miast Rumunii w swietle analizy czynnikowej. (The functional typology of Romania's cities in the light of the factor analysis)
  • have been investigated by means of a mathematical-quantitative model of the factor analysis, i.e. the algorism of main components. Eight principal types of Rumanian cities have been differentiated: five types of multi-function cities and three types
  • 1979
  • Analysis of drainage density and similar parameters in relation to soil and vegetation characteristics
  • Deterioration in soil structure and removal of protective plant cover are important factors in erosion. The problem should be studied by inter-disciplinary teams to advise rural peoples and help them to prevent erosion. (EMS).
  • 1979
  • Application of the regression method, described in a precedent number of the same review, to simulated data which follow a bimodal distribution| this method simultaneously uses factor analysis and constrained regression to estimate the underlying
  • 1979
  • A shift-analizis alkalmazasi lehetoségei a regionalis gazdasagi fejlodés vizsgalataban. (The applicability of shift analysis in the investigation of regional economic growth)
  • The sectoral structure of a region in itself does not determine entirely the dynamics and the economic level of development. The A. emphasizes that it has to be confronted with the local conditions. The effects of these two factors in economic
  • growth are revealed by shift analysis, example of Hungarian industrial development. (CK).
  • 1979
  • The analysed questionnaire includes 22questions relating to the frequentation of the forest, to the visitor's tastes and to their observations concerning the upkeep and deforestation. The analysis yielded three principal factors, according to which
  • 1979
  • in an empiric-statistical way with the help of methods such as distance grouping and nearest-neighbour analysis. The investigation uses multivariate methods (factor analysis). The results lead to proposals for regional planning. (L'A.).
  • 1979
  • The investigation, using factor analysis (PCA), bears on maximum and minimum daily temperatures recorded over three summers and four winters at some fifteen stations located in the central Middle Atlas and its surroundings (Morocco). An attempt
  • 1979
  • Different approaches can be used in studying fluvial low waters. The use of simple numerical processes facilitates a primary approach to this phenomenon| a detailed statistical analysis of low waters shows their length and geographical extent
  • . A cartographical representation of observed discharge minima gives some indications about influences of geophysical factors in their genesis. The study of low waters in both medium and low latitudes has progressed in the last decades owing to completed research
  • 1979
  • The analysis shows that universities, and in particular those with a wide spectrum of subjects, are important factors for the development of their towns and the whole region. It has become obvious that universities with their cultural, social and economic
  • 1979
  • Multi-year oscillations of the river water content are caused by departures from the average values of climatic runoff factors and the impact of economic activities. For majority of the USSR rivers the runoff norm has been established by 1961
  • . Analysis of observational results for 1961-1976 demonstrated that in spite of the extremely lack of water during 1971-1976 over the major portion of the USSR the incorporation of these years in the preceding period almost does not change the runoff norm
  • 1979
  • An analysis of the groundwater resources of Tongatapu Island, Kingdom of Tonga
  • 1979
  • Impact of tourism on mountain environment. A partial analysis of Uttrakhand Himalaya
  • 1979
  • A conceptual framework for the empirical analysis of peasants
  • 1979
  • Sediment analysis at Gibraltar Point, Lincolnshire
  • 1979