null sparstable object fail

RobinHankin / frab

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Closed RobinHankin closed 1 year ago

RobinHankin commented 1 year ago

suppressMessages(library("frab"))
a <- rspar()
a-a
#> Error in eval(expr, envir, enclos): Not compatible with STRSXP: [type=NULL].

^{Created on 2023-08-12 with reprex v2.0.2}

RobinHankin commented 1 year ago

islated it:

> a <- rspar()
> sparsetable_add(index(a),values(a),index(a),-values(a))
$index
NULL

$value
NULL

>