DisplayOneTrial {MLDS} | R Documentation |
These functions are required by runSampleExperiment
to define and display trials. They are provided as examples, and users are expected to define their own functions to define and display stimuli for estimating difference scales along other physical continua. DefineMyScale
returns a numeric vector providing the physical levels to be tested (here values of r). DisplayOneTrial
produces a 2 x 2 graphic of four scatterplots.
DisplayOneTrial(rr, PntNum = 100, ptSize = 1, xlim = c(-4, 4), ylim = c(-4, 4)) DefineMyScale(rr = c(seq(0, 0.9, len = 10), 0.98))
rr |
vector of numeric or integer. For DisplayOneTrial , a four element vector of integers, providing the indices of the physical scale values to be displayed. For DefineMyScale , a numeric vector, providing the physical scale values to be tested. |
PntNum |
numeric giving the number of points to be displayed in each subgraphic. |
ptSize |
numeric indicating the size of the points in each graphic, passed to the cex argument of plot . |
xlim, ylim |
2-element numerics to determine range of values plotted on the display. |
DisplayOneTrial
is used for its side-effect of producing a stimulus on the display. DefineMyScale
outputs a numeric vector of the physical scale. While its use here is quite trivial, in general, it permits the tailoring of the stimulus levels to the particular experiment. In the present case, one could imagine, for example, modifying it so that successive levels were evenly spaced in r^2 rather than r.
Kenneth Knoblauch and Laurence T. Maloney
## Not run: runSampleExperiment(DisplayTrial = "DisplayOneTrial", DefineStimuli = "DefineMyScale") ## End(Not run)