Stata 19 is now available Experience the latest advancements, including many new statistical features such as machine learning via H2O, CATE, and HDFE; more powerful tables and graphs; and improvements to the interface. Publications News 40–2 out now ...
once and once only, before the command line in question is checked. This applies toforjust as it applies to any other command, and it rules out most attempts to use local macros as placeholders that will take different values in command lines usingfor. This is also true of global macros....
panelviewin Stata: Visualizing Panel Data Thepanelviewpackage has three main functionalities: (1) it plots the treatment status and missing values in a panel dataset; (2) it visualizes variables of interest in a time-series fashion; (3) it depicts the bivariate relationships between a treatment...
Stata implementation, principally written in Mata. This package extends the funcionality of the original R package, allowing very simply for estimation in contexts with staggered adoption over multiple treatment periods (as well as in a single adoption period as in the original code). Some further...
version(#)run previous versions of reghdfe. Valid values are3(reghdfe 3, circa 2017) and5(reghdfe 5, circa 2020) depvarandindepvarsmay containfactor variablesandtime-series operators.depvarcannot be of the formi.ythough, only#.y(where # is a number) ...
The MaxCombo test leads to p-values smaller than 0.05 for seven of the eighteen data sets [34, 39,40,41,42, 45, 47]. In these specific data examples, the test by Ditzhaus and Friedrich [14] is the test that detects the most differences. These results are consistent with those of ...
where the standard error for each estimated coefficient is given in parentheses. These estimates are highly significant with t-statistics of −44.5 and 40.4, respectively, and p-values below 0.0001. The residual heterogeneity τ2 = 0.071 (p-value < 0.0001) and I2 = 97.0, confi...
of the intercept would be [1 1 1 1 1]’ while for the slope they might be [−2 −1 0 1 2]’, (the values ofaijin Eq.8.2; the prime symbol ’ stands for transposed). This is equivalent to centering the variable age on the third value in the LMEM. To clarify, we expand...
Time-dependent gestational diabetes screening values. Int J Gynaecol Obstet. 1997;56(3):257-261. doi:10.1016/S0020-7292(96)02831-7PubMedGoogle ScholarCrossref 59. Chevalier N, Fénichel P, Giaume V, et al. Universal two-step screening strategy for gestational diabetes has ...
in both internal and external datasets (P < 0.001) in three subgroups. Additionally, we used time-dependent ROC curves at years 1–5 to assess the prognostic accuracy of the fundus model for the above three situations. For years 1–5, the AUC values were 0.822–0.896 for predicting ...