نتایج جستجو برای: ریاضی factor analysis
تعداد نتایج: 3487166 فیلتر نتایج به سال:
The expansion and growth of cities is a remarkable phenomenon in urban planning literature,so that unpredictable developments have become more evident in recent decades, especially in cities that haveundergone changes in their physical structure following the promotion of their political role. The present paper seeksto identify the factors driving growth in the developed areas of Ardebil city a...
response modification factor (r factor) is one of the seismic design parameters to be considered in evaluating the performance of buildings during strong motions. this paper has tried to evaluate the response modification factor of concrete coupled shear wall structures with various length/depth ratios of spandrel beams. the effect of diagonal reinforcement of spandrel beam was also evaluated o...
evaluation of communication abilities in the elderly is crucial for activities which will be performed to improve their quality of life. a valid and reliable questionnaire is needed for assessing communication abilities. we aimed to translate and validate the speech, spatial, and qualities of hearing scale (ssq) in iran. the forward-backward procedure was applied to translate the questionnaire ...
Abstract: Urban sprawl is an issue in many cities throughout the world, which has affected many aspects of urban life negatively. Urban sprawl, which is generally attributed to horizontal and leapfrogged extension of city boundaries caused by citizen’s will to leave central urban areas and live in urban countryside. The first step for tackling this problem is the identification of sprawled plac...
Using Clustering and Factor Analysis in Cross Section Analysis Based on Economic-Environment Factors
Homogeneity of groups in studies those use cross section and multi-level data is important. Most studies in economics especially panel data analysis need some kinds of homogeneity to ensure validity of results. This paper represents the methods known as clustering and homogenization of groups in cross section studies based on enviro-economics components. For this, a sample of 92 countries which...
چکیده ندارد.
the present study investigated no3- and br- contamination in groundwater of arak aquifer of markazi province. correlation and factor analysis were used to detect interrelation and sources of concentration of no3- and br- ions and others physicochemical variables. no correlation was observed between no3- and others contents, but positive correlation was identified between br- with other major va...
Factor analysis includes both component analysis and common factor analysis. More than other statistical techniques, factor analysis has suffered from confusion concerning its very purpose. This affects my presentation in two ways. First, I devote a long section to describing what factor analysis does before examining in later sections how it does it. Second, I have decided to reverse the usual...
as a linear combination Xi·B of the q columns of X, plus some mean-zero random error Ui·. Perhaps fewer than q terms would suffice to predict Y adequately or, more realistically, perhaps some number m < q of linear combinations of the columns ofX would suffice. That is the essence of Factor Analysis, a method proposed in 1904 by psychologist Charles Spearman in his effort to show that all measu...
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