runiana: Run Iana
In mihock/iana: GUI for Item Analysis
runiana R Documentation
Run Iana
Description
Run Iana in the default browser.
Usage
runiana(data = NULL, plotheight = 750L, port = NULL)
Arguments
data
a string specifying the data data frame to select initially
plotheight
an integer value giving the height of multipanel plots in pixels. The default height is 750 pixels, which may not be enough if many (more than 20) items are analyzed. Valid values range from 300 to 2000.
port
TCP port the application should listen on, see runApp.
Details
This is the main function of Iana. Invoking runiana() saves the data you are currently working with (i,e,, the variables in the global R enviroment) to a temporary RData file and launches Iana in the default web browser. The RData file is then loaded by Iana, so that your data are accessible for item and scale analysis.
Before running Iana, you should create one or more data frames that contain the items to be analyzed. Normally, for each (hypothesized) scale, one data frame should be defined. If the data are multidimensional it may be convenient to create data frames for the subscales as well.
When one of the data frames is selected in the GUI, Iana lists the numeric variables in that data frame. From this list, the items to include in the analyses performed by Iana can then be selected. You can also specify ranges of variables in the input box below the list.
Because responses to ordered-category items are usually coded with integers ranging from 1 to the number of response categories (or from 0 to number of categories minus 1), and the number of categories is usually small (< 10), only variables with a limited range of non-negative integer values are shown. However, this may be changed by increasing the value in the numeric input box located above the variable list. Anyway, the items to be analyzed should be integers and, for some types of analysis (for example, partial credit models), these integers should fall within a small range. Otherwise, computations will probably fail.
Missing values should be handled before Iana is launched. Iana removes rows with incomplete values in a data frame via tidyr::drop_na, which can result in a substantial reduction of the number of cases.
If a data argument is provided, the corresponding data frame is initially selected. Providing a data frame is recommended because Iana otherwise starts its compuations with first data frame it finds, which may not be the right one.
Iana blocks the console while it is running. Simply press <Escape> in the console (or, in RStudio, click on the red STOP button in the upper right of the console window) to terminate Iana and get the console responsive again. You can then do computations in R and later relaunch Iana. Relaunching Iana will open a new browser tab, so you might want to close the old tab in the browser before you return to R.
Author(s)
Michael Hock michael.hock@uni-bamberg.de
Examples
## Not run:
runiana()
# Select a data frame to start with
runiana("my_data_frame")
# Increase plot height to 900 pixels
runiana(plotheight = 900)
## End(Not run)
mihock/iana documentation built on Dec. 29, 2024, 3:33 p.m.
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| runiana | R Documentation |
Run Iana
Description
Run Iana in the default browser.
Usage
runiana(data = NULL, plotheight = 750L, port = NULL)
Arguments
data |
a string specifying the data data frame to select initially |
plotheight |
an integer value giving the height of multipanel plots in pixels. The default height is 750 pixels, which may not be enough if many (more than 20) items are analyzed. Valid values range from 300 to 2000. |
port |
TCP port the application should listen on, see |
Details
This is the main function of Iana. Invoking runiana() saves the data you are currently working with (i,e,, the variables in the global R enviroment) to a temporary RData file and launches Iana in the default web browser. The RData file is then loaded by Iana, so that your data are accessible for item and scale analysis.
Before running Iana, you should create one or more data frames that contain the items to be analyzed. Normally, for each (hypothesized) scale, one data frame should be defined. If the data are multidimensional it may be convenient to create data frames for the subscales as well.
When one of the data frames is selected in the GUI, Iana lists the numeric variables in that data frame. From this list, the items to include in the analyses performed by Iana can then be selected. You can also specify ranges of variables in the input box below the list.
Because responses to ordered-category items are usually coded with integers ranging from 1 to the number of response categories (or from 0 to number of categories minus 1), and the number of categories is usually small (< 10), only variables with a limited range of non-negative integer values are shown. However, this may be changed by increasing the value in the numeric input box located above the variable list. Anyway, the items to be analyzed should be integers and, for some types of analysis (for example, partial credit models), these integers should fall within a small range. Otherwise, computations will probably fail.
Missing values should be handled before Iana is launched. Iana removes rows with incomplete values in a data frame via tidyr::drop_na, which can result in a substantial reduction of the number of cases.
If a data argument is provided, the corresponding data frame is initially selected. Providing a data frame is recommended because Iana otherwise starts its compuations with first data frame it finds, which may not be the right one.
Iana blocks the console while it is running. Simply press <Escape> in the console (or, in RStudio, click on the red STOP button in the upper right of the console window) to terminate Iana and get the console responsive again. You can then do computations in R and later relaunch Iana. Relaunching Iana will open a new browser tab, so you might want to close the old tab in the browser before you return to R.
Author(s)
Michael Hock michael.hock@uni-bamberg.de
Examples
## Not run:
runiana()
# Select a data frame to start with
runiana("my_data_frame")
# Increase plot height to 900 pixels
runiana(plotheight = 900)
## End(Not run)
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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