Survo operations and commands can be typed on any line in the edit field.
Each operation consists of an operator designator (word) and of a list of
parameters. In more complicated operations, extra specifications of the form
<specification designator>=<list of parameters> may appear in the field.
For example,
11 *PRINT 21,100 / Print lines 21-100.
12 *LOAD PART1 / Load edit file PART1 to edit field.
13 *SORT A,B,K / Sort lines A-B according to a mask on image line K.
14 *PLOT MALES / Plot data MALES as a bar chart.
15 */DATE / Type the current date.
16 * (Text after an isolated '/' is a comment.)
are typical operations. The last one (/DATE) is not an original Survo command
but a user-defined sucro command made by using the macro language of
Survo. '/' in front of the command word always refers to a sucro.
It is strongly recommendable to type command words like PRINT, LOAD, SAVE
in upper case letters (not Print, print).
A command or operation is activated either by a double-click of the mouse or
by moving the cursor to the command line and by pressing key ESC.
Please note that a double-click of the RIGHTmost mouse button leads
to the help system (showing information about the word indicated by the mouse).
Continuous activation:
To carry out a series of consecutive operations (run mode), press first
F2:PREFIX and then ESC. Such a series must not contain sucro commands.
In Survo operations, lines of the edit field are referred to by
their indices (1,2,3,...) or by their labels. A label is a single
character (like A,X,a,x) placed in the control column. Also END
(END+3, END-5) are possible line labels, END indicating the last non-
empty line in the field. Similarly CUR refers to the current line
indicated by the cursor.
Thus CUR, CUR+5, A, A-5 are permitted line labels.
Example:
PRINT CUR+1,END / Print lines below the current line.
To specify columns in Survo operations, the column indices are not
used in general. The columns are indicated by various masks
(images, patterns) on image lines. For instance, image line in
numerical sort (see SORT) has the structure " 12345 "
where the location of the mask 12345 corresponds to the sort key
column.
In statistical operations, the data sets to be analyzed may be located
either in the edit field or in special data files and they are referred
to by their names given usually by a DATA definition.
(See DATA,FILE)
S = Using ready-made sucros
U = User-defined operations
C = Information on control operations
D = Data in statistical operations
X = Extra specifications in Survo operations
B = Border and fence lines
H = Hidden commands
L = Working with large data sets
E = More information on EDITOR
Help System (web edition)