6.2 Accumulating images

• accumulating a default XY image (normal form)

  the simplest form of issuing the command is
  

  accumulate image [ ifile {packet} xrange xbin yrange ybin  {range range ...}

• accumulating a default XY image (short form)

  in the case one wishes to accumulate many images, one can default the kind of accumulation setting the context to images, after which one can issue an arbitrary number of accumulation commands in the short form (if one wishes to interleave with another kind of accumulation it is sufficient to use the the normal form
  

  xasset context i[mages]
  accumulate ifile [{packet} xrange xbin yrange ybin  {range range ...}

• accumulating a single "pseudoimage" of other quantities

  in the case one wishes to accumulate a "pseudoimage" for quantities other than X,Y (e.g. a PHA-BURSTLENGTH distribution) one may set this in the environment (and reset it to X,Y or to blank - which defaults to X,Y - afterwards !). One can use either the normal or the short form.
  

  xasset xquantity xquantity
  xasset yquantity yquantity
  accumulate {image} ifile {packet} xrange xbin yrange ybin  {range range ...}

• accumulating (pseudo)images of other quantities explicitly

  in the case one wishes to switch between interleaved accumulations of different quantities, one may set the "pseudoimage" accumulation mode, in this case one is prompted to supply the name of the quantity to be accumulated
  

  xasset accummode pseudo
  accumulate {image} ifile {packet} xquantity yquantity xrange xbin yrange ybin  {range range ...}

  to revert to the usual behaviour, reset the accumulation mode to "normal" (or to blank which defaults to "normal").

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