detStructPreprocessing: Functions to preprocess determinant structures

In academy-of-behavior-change/behaviorchange: Tools for Behavior Change Researchers and Professionals

Description

These functions are used in conjunction with the determinantStructure family of funtions to conveniently work with determinant structures.

Usage

detStructAddVarLabels(determinantStructure, varLabelDf,
  varNameCol = "varNames.cln", leftAnchorCol = "leftAnchors",
  rightAnchorCol = "rightAnchors", subQuestionCol = "subQuestions",
  questionTextCol = "questionText")

detStructAddVarNames(determinantStructure, names)

detStructComputeProducts(determinantStructure, data, append = TRUE)

detStructComputeScales(determinantStructure, data, append = TRUE,
  separator = "_")

Arguments

determinantStructure	The determinantStructure object.
varLabelDf	The variable label dataframe as generated by processLSvarLabels. It is also possible to specify 'homemade' dataframe, in which case the column names have to specified (see the next arguments).
varNameCol	The name of the column of the varLabelDf that contains the variable name. Only needs to be changed from the default value if varLabelDf is not a dataframe as produced by processLSvarLabels.
leftAnchorCol	The name of the column of the varLabelDf that contains the left anchor. Only needs to be changed from the default value if varLabelDf is not a dataframe as produced by processLSvarLabels.
rightAnchorCol	The name of the column of the varLabelDf that contains the right anchor. Only needs to be changed from the default value if varLabelDf is not a dataframe as produced by processLSvarLabels.
subQuestionCol	The name of the column of the varLabelDf that contains the subquestion. Only needs to be changed from the default value if varLabelDf is not a dataframe as produced by processLSvarLabels.
questionTextCol	The name of the column of the varLabelDf that contains the question text. Only needs to be changed from the default value if varLabelDf is not a dataframe as produced by processLSvarLabels.
names	A character vector with the variable names. These are matched against the regular expressions as specified in the determinantStructure object, and any matches will be stored in the determinantStructure object.
data	The dataframe containing the data; the variables names specified in names (when calling detStructAddVarNames) must be present in this dataframe.
append	Whether to only return the products or scales, or whether to append these to the dataframe and return the entire dataframe.
separator	The separator to use when constructing the scale variables names.

Details

This family of functions will be explained more in detail in a forthcoming paper.

Value

detStructAddVarLabels and detStructAddVarNames just change the determinantStructure object; detStructComputeProducts and detStructComputeScales return either the dataframe with the new variables appended (if append = TRUE) or just a dataframe with the new variables (if append = FALSE).

References

(Forthcoming)

See Also

determinantStructure, determinantVar, subdeterminants, subdeterminantProducts, detStructCIBER

Examples

### Create some bogus determinant data
detStudy <- mtcars[, c(1, 3:7)];
names(detStudy) <- c('rUse_behav',
                     'rUse_intention',
                     'rUse_attitude1',
                     'rUse_attitude2',
                     'rUse_expAtt1',
                     'rUse_expAtt2');

### Specify the determinant structure

### First a subdeterminant
expAtt <-
  behaviorchange::subdeterminants("Subdeterminants",
                                  "expAtt");

### Then two determinants
attitude <-
  behaviorchange::determinantVar("Determinant",
                                 "attitude",
                                 expAtt);

intention <-
  behaviorchange::determinantVar("ProximalDeterminant",
                                 "intention",
                                 attitude);

### Then the entire determinant strcture
detStruct <-
  behaviorchange::determinantStructure('Behavior',
                                       list('behav',
                                       behaviorRegEx = 'rUse'),
                                       intention);

### Add the variable names
behaviorchange::detStructAddVarNames(detStruct,
                                     names(detStudy));

### Add the determinant scale variable to the dataframe
detStudyPlus <-
  behaviorchange::detStructComputeScales(detStruct,
                                         data=detStudy);

### Show its presence
names(detStudyPlus);
mean(detStudyPlus$rUse_Determinant);

academy-of-behavior-change/behaviorchange documentation built on May 12, 2019, 4:35 a.m.