neuroelf_gui_-_rfx_mediation
Differences
This shows you the differences between two versions of the page.
neuroelf_gui_-_rfx_mediation [2011/04/03 19:48] – created jochen | neuroelf_gui_-_rfx_mediation [2011/04/04 20:28] (current) – added controls and notes jochen | ||
---|---|---|---|
Line 23: | Line 23: | ||
{{: | {{: | ||
+ | ===== Controls ===== | ||
+ | The following controls are available: | ||
+ | |||
+ | * GLM selector (dropdown): if more than one RFX-GLM is loaded, you can select over which data the mediation analysis is performed | ||
+ | * Subject selection (listbox): this listbox can be used to deselect (discard) specific subjects from the analysis | ||
+ | * ab Null-hypothesis test strategy - radio button group with either of the following being selected: | ||
+ | * Bootstrapping (radiobutton): | ||
+ | * Monte-Carlo simulation (radiobutton): | ||
+ | * Sobel-Test (radiobutton): | ||
+ | * Robust regression (checkbox): if checked (currently only available for Monte-Carlo simulation and Sobel-Test ab-path-strategy settings), perform regression using [[fitrobustbisquare_img] | ||
+ | * z-transformation (checkbox): if checked, normalize regressors and data to mean = 0 and SD = 1 | ||
+ | * Number of bootstrap samples (edit field): gives the number of resamplings being drawn from the data | ||
+ | * Re-use bootstrap samples (checkbox): if checked, uses the same bootstrap resamplings across the brain, otherwise re-draw samples for each voxel separately | ||
+ | * Bootstrap SE-method (for ab path) - radio button group with either of the following being selected: | ||
+ | * Percentile (radiobutton): | ||
+ | * BCa (radiobutton): | ||
+ | * Variance (radiobutton): | ||
+ | * X (dropdown, choice of type): can be set to either '' | ||
+ | * X selection (listbox): depending on the choice setting, shows either configured covariates or contrasts, selected item will be used as X (must not be used as either of M, Y, or C) | ||
+ | * M (listboxes, contrasts and covariates): | ||
+ | * Y (dropdown, choice of type): can be set to either '' | ||
+ | * Y selection (listbox): depending on the choice setting, shows either configured covariates or contrasts, selected item will be used as Y (must not be used as X, either of M, or C) | ||
+ | * C (listboxes, contrasts and covariates): | ||
+ | * Cancel (button): closes the dialog without further processing | ||
+ | * Compute (button): performs the mediation regression with subsequent testing of the parameters according to the selected method | ||
+ | |||
+ | ===== Usage notes ===== | ||
+ | The dialog will automatically try to detect whether or not a combination of settings is valid and can be used (e.g. that X and Y cannot be the same term), and a warning message will pop up in case an invalid selection is made. Also, if a term for X and Y is selected, any equal terms in M and C will be deselected. |
neuroelf_gui_-_rfx_mediation.txt · Last modified: 2011/04/04 20:28 by jochen