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ccal

ccal <oper>,<field>,<ik> [,<value>]

This command allows data manipulation. All functions could also be performed using the FORTRAN type interpreter, but especially for large data sets this can be very slow.

The general syntax is the operation <oper> (see list below) that should be performed as first parameter followed by the field identifier <field> (see below), followed by the number of the data set <ik>. Some operations require an additional parameter <value>.

Here is a list of allowed operation parameters <oper>:

  "inv"  :  x -> 1/x         "squ"  :  x -> x**2
  "log"  :  x -> ln(x)       "add"  :  x -> x + <value>
  "exp"  :  x -> exp(x)      "mul"  :  x -> x * <value>
  "sqr"  :  x -> sqrt(x)

he value "x" in the table above represents the coordinate selected y the <field> parameter. Allowed values are:

  "wx" : x value of data set
  "dx" : standard deviation of x
  "wy" : y value of data set
  "dy" : standard deviation of y
  "wz" : z value of data set (for 3d data sets only)


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