All variables are denoted by a name, immediately followed by a left square bracket [, one or more indices and a right square bracket ].
Example : i[1], r[0], i[i[1]], x[1,2]
The left square brackets must immediately follow the name of the variable. Blanks within the square brackets are not significant. The index can be any integer expression, especially any of the integer variables again. Two free variables are provided, an integer, i[n], and a real, r[n] variable. Each of these variables is actually an array of dimension n given in squared brackets. The allowed range for n is 0 to MAXPARAM, which is defined at compilation time by the parameter MAXPARAM in the file `param.inc', see appendix B for further help.
Beside these variables i[n] and r[n] for general use a large variety of
variables is linked to information of the currently loaded data sets in
KUPLOT. Some of these variables can not be modified, others like the
individual values of data sets can be altered, thus allowing to modify the
loaded data. Table 6.1 shows a summary of data related
variables. The values of these variables marked with * are read-only
and can not be altered. Note that the variable 'n[1]' 
]can now be
overwritten, however this results in data sets being lost. To allocate
space for a new data set use the command 'allocate', just increasing
the value of 'n[1]' will not work. One possible application for
example is to remove just the last data set rather than using 'rese' and
loading all other data sets again. The following line would just remove
the last data set:
n[1] = n[1]-1
|
Another variable is res[i] which contains the results of a particular KUPLOT command. The variable res[0] contains the number of elements returned in res[i]. Check the online help for the different commands to see what results might be returned in this variable.
for data point <ip> of
data set <ik>
for data point <ip> of
data set <ik>