call – Create objects of the class call. case_when [dplyr] – Distinguish between cases based on logical conditions. casefold – Translate character to lower or upper case. cases [memisc] – Distinguish between cases based on logical conditions. cat – Return character string in readable format...
使用dplyr根据条件在R中重命名/重新编码变量值使用通过readr::read_csv()导入的链接中的Red.csv创建data...
Added instruction*BOUNDARY_ACOUSTIC_IMPEDANCEfor explicit calculations that applies an impedance boundary condition to the boundary of*MAT_ACOUSTICelement faces. This is a generalization of the non-reflecting boundary conditon. Both*LOADand*BOUNDARY_ACOUSTIC_IMPEDANCEmay be used on the same faces, in w...
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Is the exogeneity condition on $motheduc$ and $fatheduc$ plausible? [^1]: Note that you can easily include the quadratic in experience as `I(exper^2)` without having to create this variable in a `mutate()` statement. [^2]: The reason is that error term in the second stage ...
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I have a question on the partially nested models. What value should you use for the grouping variable "therapist" for those subjects who are in the control condition (i.e. for those subjects who are not nested within therapists). I have seen various suggestions: the control subjects are ...
Description: Provides functions that generate variable dictionaries from 'Qualtrics' <https://www.qualtrics.com/about/> surveys and labelled survey data based on the dictionary. This package is built upon the R package 'qualtRics' <https://github.com/ropensci/qualtRics/> which ...
are a series of two-sided formulae where the left-side is a conditioning statement based on the original data and the right-side is the value that should appear in the new variable when that condition isTRUE. For example, the first line incase_when()below asks “if the year variable is...
Fixed laminated shell theory for type 6 and 7 shell elements when made active by LAMSHT=3 or 5 on *CONTROL_SHELL. Added an int.pt. variable for *PART_COMPOSITE_LONG and *PART_COMPOSITE_TSHELL_LONG called SHRFAC which is a scale factor for the out-of-plane shear stress that allows th...