
科學(xué)軟件網(wǎng)提供的軟件涵蓋領(lǐng)域包括經(jīng)管,仿真,地球地理,生物化學(xué),工程科學(xué),排版及網(wǎng)絡(luò)管理等。同時,還提供培訓(xùn)、課程(包含34款軟件,66門課程)、實驗室解決方案和項目咨詢等服務(wù)。科學(xué)軟件網(wǎng)提供軟件和培訓(xùn)服務(wù)已有19年,擁有豐富的經(jīng)驗,提供軟件產(chǎn)品上千款,涵蓋領(lǐng)域包括經(jīng)管,仿真,地球地理,生物化學(xué),工程科學(xué),排版及網(wǎng)絡(luò)管理等。同時還有的服務(wù),現(xiàn)場培訓(xùn)+課程,以及本地化服務(wù)。
Cochran–Armitage test Jonckheere–Terpstra test Linear-by-linear test Cuzick's test with ranks
summarize displays the mean and standard deviation of a variable across observations; program writers can access the mean in r(mean) and the standard deviation in r(sd) (see [R] summarize). egen’s rowmean() function creates the means of observations across variables. rowmedian() creates the medians of observations across variables. rowpctile() returns the #th percentile of the variables specified in varlist. rowsd() creates the standard deviations of observations across variables. rownonmiss() creates a count of the number of nonmissing observations, the denominator of the rowmean() calculation
Have excess zeros (or responses in the lowest category)?
Posterior / Likelihood Prior If the posterior distribution can be derived in a closed form, we may proceed directly to the inference stage of Bayesian analysis. Unfortunately, except for some special models, the posterior distribution is rarely available explicitly and needs to be estimated via simulations. MCMC sampling can be used to simulate potentially very complex posterior models with an arbitrary level of precision. MCMC methods for simulating Bayesian models are often demanding in terms of specifying an efficient sampling algorithm and verifying the convergence of the algorithm to the desired posterior distribution. Inference is the next step of Bayesian analysis.
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重點軟件有:
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PSCAD,Enerplot,F(xiàn)ACE,E-Tran,SIDRA TRIP,SIDRA INTERSECTION,Remo 3D,HOMER,Surfer,Grapher,Sigmaplot,GraphPad Prism,
KaleidaGraph,Mapviewer ,Voxler ,Strater,Didger,RFFlow
Hydrus,GMS/SMS/WMS ,Visual Modflow,F(xiàn)lo-2d,Earth Volumetric Studio(EVS)Geostudio,RockWorks,PetraSim,AquaChem,
AquiferTest,Hydro GeoAnalyst,Groundwater Vistas,TerrSet
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EndNote ,Scientific WorkPlace ,Intel Fortran Composer ,Lahey Fortran,Camtasia ,CAD Viewer ,MathType ,Word2TeX,TeX2Word