Name of input event list Name of column to be read for event x-coordinates Name of column to be read for event y-coordinates Type of data entry for the range in x Value of x at which to set LH edge of image. Value of x at which to set RH edge of image. Type of data entry for the range in y Value of y at which to set bottom edge of image. Value of y at which to set top edge of image. The way that the number of pixels is to be defined Number of bins in x direction. nxpixels in [1:1000] Number of bins in y direction. nypixels in [1:1000] Size of pixels in x direction. xpixelsize in (0.0:] Size of pixels in y direction. ypixelsize in (0.0:] If T, the flux image is expected to be supplied; flux image created if F. Name of flux image. true If T, the event list is sorted in time order. Name of the output variability image. Pixels which contain a number of events less than cutoff are set to zero in the variability image. cutoff in [0:] Developers only - type of test output required. true