
"data item '_a' already exists"



data_new
loop_
    _a
    _b
 1 2
 3 4
loop_
    _c
    _d
    _e
 1 2 3
 3 4 4
 'c' 'd' 'e'
data_new
loop_
    _a
    _b
 1 2
 3 4
loop_
    _c
    _d
    _e
 1 2 3
 3 4 4
 'c' 'd' 'e'
_overwritten                     'first'
data_new
loop_
    _a
    _b
 1 2
 3 4
loop_
    _c
    _d
    _e
 1 2 3
 3 4 4
 'c' 'd' 'e'
_overwritten                     'second'
data_new
loop_
    _a
    _b
 1 2
 3 4
loop_
    _c
    _d
    _e
 1 2 3
 3 4 4
 'c' 'd' 'e'
_overwritten                     'second'
loop_
    _simple_loop
 10
 12
 13
_unknown                         ?
_inapplicable                    .
