科学软件网专注提供科研软件。截止目前,共代理千余款,软件涵盖各个学科。除了软件,科学软件网还提供课程,包含34款软件,66门课程。热门软件有:spss,stata,gams,sas,minitab,matlab,mathematica,lingo,hydrus,gms,pscad,mplus,tableau,eviews,nvivo,gtap,sequncher,simca等等。
. Introduction
In practice, many multivariate data sets contain missing values. These missing values may result from nonresponses in a survey, absenteeism of participants in a longitudinal study, etc. The traditional way of dealing
with these missing data values is to use list wise deletion to generate a data set that only contains the complete
data cases. However, list wise deletion may result in a very small data set. It is a well-known fact that most
multivariate statistical methods require a large sample size, especially if the number of observed variables is
large. Consequently, alternative statistical methods for dealing with data with missing values are of interest.
Multiple Imputation (MI) and Full Information Maximum Likelihood (FIML) estimation are two popular
statistical methods for dealing with data with missing values. Both these methods are available in LISREL
(Jöreskog & Sörbom 2003). The Multiple Imputation module of LISREL implements the Expected
Maximization (EM) algorithm and the Markov Chain Monte Carlo (MCMC) method for imputing missing
values in multivariate data sets. Technical details of these methods are available in Schafer (1997) and Du
Toit & Du Toit (2001). Supplementary notes on these methods are also provided by Du Toit & Mels (2002).
In this note, the Multiple Imputation and FIML methods for data with missing values of LISREL are illustrated
by fitting a measurement model to a multivariate data set consisting of the scores of a sample of girls on six
psychological tests. This data set is described in the next section. The measurement model is described in
section 3. Thereafter, the method of Multiple Imputation is used to fit the measurement model to the data set
for girls. In section 5, the measurement model is fitted to the girls’ data by means of the FIML method
• Click on the Next button to load the Survey Design dialog box.
• Click on the Finish button to open the following text editor window for FITCHOL.PR2
These results above indicate that all the factor loadings are statistically significant at a 1% level of
significance. Consequently, the indicators for socio-economical status and attitude towards home seem to
achieve an acceptable level of construct validity.
The estimated regression weights are displayed in the following text editor window.
The results above indicate that socio-economic status is significantly correlated with GPA score, but not
with attitudes towards home and school. Attitude towards home is significantly correlated with GPA
score, but not with attitude towards school. Finally, attitude towards school is not significantly correlated
with GPA score.
The next text editor window contains the estimated error variances and squared multiple correlations for
the structural equations and the reduced form.
19年来,公司始终秉承、专注、专心的发展理念,厚积薄发,积累了大量的人才、技术以及行业经验,在行业内得到了大量用户的认可和高度价。
科学软件网是一个以引进国外优秀科研软件,提供软件服务的营业网站,网站由北京天演融智软件有限公司创办,旨在为国内高校、科研院所和以研发为主的企业事业单位提供优秀的科研软件及相关软件服务。截止目前,科学软件网已获得数百家**软件公司正式授权,代理销售科研软件数百种种,软件涵盖领域包括经管,电力系统模拟,地球地理,生物化学,工程科学,排版及网络管理等。同时,还提供专业培训、视频课程(包含34款软件,66门课程)、实验室解决方案和项目咨询等服务。
不管您是需要购买单款软件,还是制定整个实验室的购买方案,都可以提供。重点软件有:SPSS, Stata, Minitab, Matlab, GAMS, Mathematica, Tableau, SAS, LinGo, Mplus, @risk, Risk Simulator, EViews,NVivo/Atlas.ti/MaxQDA, 动态均衡模型,静态均衡模型,OxMetrics,Vensim/Ithink/Stella,Crystal Ball ,Alogit,GAUSS,GTAP,GEMPACK,HLM,Lisrel,NCSS,Netminer,Nlogit ,Stat/Transfer,SUDAAN,SYSTAT,TreeAge,PASS,nQuery,UCINET,RATS/CATS,Latent GOLD,Kwalitan,NeuroSolutions,TableCurvePSCAD,Enerplot,FACE,E-Tran,SIDRA TRIP,SIDRA INTERSECTION,Remo 3D,HOMER,Surfer,Grapher,Sigmaplot,GraphPad Prism,KaleidaGraph,Mapviewer ,Voxler ,Strater,Didger,RFFlowHydrus,GMS/SMS/WMS ,Visual Modflow,Flo-2d,Earth Volumetric Studio(EVS)Geostudio,RockWorks,PetraSim,AquaChem,AquiferTest,Hydro GeoAnalyst,Groundwater Vistas,TerrSetSequencher,SIMCA ,Wien2k,Q-chem,Chembiooffice ,Chembiodraw ,The Unscrambler ,Spartan,Array Designer ,Beacon Designer ,AlleleID ,Beacon Designer,Chemcraft,ChromasPro,CLIMEX DYMEX,Geneious,PC-ORD,Primer Premier,PrimerPlex ,RBCA Tool Kit for Chemical
欢迎来到北京天演融智软件有限公司网站,我公司位于拥有6项世界级遗产,拥有文化遗产项目数最多的城市,一座有着三千余年建城历史、八百六十余年建都史的历史文化名城,拥有众多历史名胜古迹和人文景观的中国“八大古都”之一 —北京。 具体地址是
北京海淀公司街道地址,负责人是王经理。
主要经营北京天演融智软件有限公司主营产品spss、stata、matlab,科学软件网拥有近20年的软件销售经验,提供专业软件销售和培训服务,还有更多的增值服务。目前,科学软件网提供的软件有数百种,软件涵盖的。
我们的产品优等,服务优质,您将会为选择我们而感到放心,我们将会为得到您认可而感到骄傲。
本页链接:
http://www.cg160.cn/vgy-101344715.html
以上信息由企业自行发布,该企业负责信息内容的完整性、真实性、准确性和合法性。阿德采购网对此不承担任何责任。
马上查看收录情况:
百度
360搜索
搜狗