Local differencingNuisance functionPanel dataI discuss the fixed-effect estimation of panel data models with time-varying excess heterogeneity across cross-sectional units. These latent components are not given a parametric form. A modification to traditional first-differencing is motivated which, ...
First difference maximum likelihood (FDML) seems an attractive estimation methodology in dynamic panel data modeling because differencing eliminates fixed effects and, in the case of a unit root, differencing transforms the data to stationarity, thereby addressing both incidental parameter problems and the...
Fortunately, a time series with a unit root may be transformed to achieve covariance stationarity using the first-differencing process. Although the explanatory power of the model was high (but note the small sample size), a model using first-differenced data often has less explanatory power. ...
Impact of resolution and radar penetration on glacier elevation changes computed from DEM differencing. J. Glaciol. 58, 419–422 (2012). Article ADS Google Scholar McNabb, R., Nuth, C., Kääb, A. & Girod, L. Sensitivity of glacier volume change estimation to DEM void interpolation...
a和孩子在一起时,多和他们讲话,开朗一些。多和他们玩 With child when together, many and they speak, open and bright somewhat.Many and they play[translate] aThe scheme is based on backward differencing and its Taylor series truncation error accuracy is first-order with respect to time 计划根据落...
a finite element approximation corresponding to the upwind finite differencing. mem. numer. math. 4 , 47–63 (1977) mathscinet google scholar tabata, m., uchiumi, s.: a genuinely stable lagrange–galerkin scheme for convection–diffusion problems. jpn. j. ind. appl. math. 33 (...
aTable 1 shows that the spot and futures price series of all the symbols are non-stationary and they attain stationarity only after differencing. 表1表示,所有标志斑点和未来价格系列non-stationary,并且他们在differencing之后获得stationarity。[translate] ...
Slope was calculated by differencing the most upstream and downstream cross sections and dividing by total length of reach. Differences between LiDAR and field-based slopes may represent real change due to the five day lag between data sets and difference in discharge. 46 Table 4. Results of ...
Slope was calculated by differencing the most upstream and downstream cross sections and dividing by total length of reach. Differences between LiDAR and field-based slopes may represent real change due to the five day lag between data sets and difference in discharge. 46 Table 4. Results of ...
Maximum principle preserving exponential time differencing schemes for the nonlocal Allen Cahn equation 2019, SIAM Journal on Numerical Analysis A second-order energy stable BDF numerical scheme for the Cahn-Hilliard equation 2018, Communications in Computational Physics Numerical approximations for a three...