design_info: Information about the design
In dexter: Data Management and Analysis of Tests
design_info R Documentation
Information about the design
Description
This function is useful to inspect incomplete designs
Usage
design_info(dataSrc, predicate = NULL)
Arguments
dataSrc
a connection to a dexter database, a matrix, or a data.frame with columns: person_id, item_id, item_score
predicate
An optional expression to subset data, if NULL all data is used
Value
a list with the following components
- design
a data.frame with columns booklet_id, item_id, item_position, n_persons
- connected_booklets
a data.frame with columns booklet_id, group;
booklets with the same 'group' are connected to each other.
- connected
TRUE/FALSE indicating whether the design is connected or not
- testlets
a data.frame with columns item_id and testlet; items within the same testlet
always occur together in a booklet
- adj_matrix
list of two adjacency matrices: *weighted_by_items* and *weighted_by_persons*; These matrices can be
useful in visually inspecting the design using a package like *igraph*
dexter documentation built on Sept. 11, 2024, 6:42 p.m.
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| design_info | R Documentation |
Information about the design
Description
This function is useful to inspect incomplete designs
Usage
design_info(dataSrc, predicate = NULL)
Arguments
dataSrc |
a connection to a dexter database, a matrix, or a data.frame with columns: person_id, item_id, item_score |
predicate |
An optional expression to subset data, if NULL all data is used |
Value
a list with the following components
- design
a data.frame with columns booklet_id, item_id, item_position, n_persons
- connected_booklets
a data.frame with columns booklet_id, group; booklets with the same 'group' are connected to each other.
- connected
TRUE/FALSE indicating whether the design is connected or not
- testlets
a data.frame with columns item_id and testlet; items within the same testlet always occur together in a booklet
- adj_matrix
list of two adjacency matrices: *weighted_by_items* and *weighted_by_persons*; These matrices can be useful in visually inspecting the design using a package like *igraph*
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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