NCL users,
If "x" is a string array like this:
aaa1 aaa2
bbb1
ccc1 ccc2
ddd1
eee1
I want to make a NCL script as:
s1 = str_get_field(x(1:),1," ")
s2 = str_get_field(x(1:),2," ")
if (s2.ne."null") then ;------------------how to judge "s2" here
ss =s1+" "+s2
else
ss=s1
end if
The aim is plus "s1" and "s2" with a space between only if "s2" has value.
Otherwise the string "ss" would have extra space (e.g. ss=s1+" "), which damage
the variable name.
Can any one help!
Thanks very much.
Mark
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Received on Fri Mar 18 16:59:58 2011
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