SET STRING VARIABLE

STRING VARIABLE (SET)

Set Subcommand

Specify whether the READ and STRING VARIABLE commands will overwrite the contents of the dpzchf.dat file or append the new data to the current contents of the dpzchf.dat file.

The READ command can optionally read character variables (SET CONVERT CHARACTER). Dataplot saves the character variables in the file "dpzchf.dat". In addition, the LET ... = STRING VARIABLE command can be used to create a character variable from a list of strings. This variable will be saved in the "dpzchf.dat" as well.

By default, Dataplot overwrites the current contents of the "dpzchf.dat" file whenever a READ or STRING VARIABLE command creates new character variables. To have these commands append the contents of the new character variables to the current contents of "dpzchf.dat", enter the command

SET STRING VARIABLE APPEND

To reset the default of overwriting the current contents of "dpzchf.dat", enter

SET STRING VARIABLE OVERWRITE

SET STRING VARIABLE <OVERWRITE/APPEND>
where OVERWRITE replaces the current contents of "dpzchf.dat" and APPEND appends to the current contents of "dpzchf.dat".

SET STRING VARIABLE APPEND
SET STRING VARIABLE OVERWRITE

None

None

STRING VARIABLE	=	Create a character variable from a list of
READ	=	Read numeric/character variables from a file.

Character Data

2019/09

 
set string variable overwrite
let string s1 = Group 1
let string s2 = Group 2
let string s3 = Group 3
let ix = string variable s1 s2 s3
list dpzchf.dat
pause
    

The following output is generated

       1
IX               3
Group 1
Group 2
Group 3
    

.
set string variable append
let string s4 = Group 4
let string s5 = Group 5
let string s6 = Group 6
let iy = string variable s4 s5 s6
list dpzchf.dat
    

The following output is generated

       2
IX               3
IY               3
Group 1                  Group 4
Group 2                  Group 5
Group 3                  Group 6