lfill!

lfill!(obj)

obj is a vector or a table with only numeric columns.

Please refer to lfill. The only difference between lfill and lfill! is that the latter assigns the result to X and thus changing the value of X after the execution.

a= NULL 1.5 NULL NULL 4.5
a.lfill!()
a;
[NULL,1.5,2.5,3.5,4.5]

b=1 NULL NULL 6
b.lfill!()
b;
[1,3,4,6]

t=table(1 NULL NULL 4 5 6 as id,2.1 2.2 NULL NULL 2.4 2.6 as val);
lfill!(t);
t;

Related functions: bfill, bfill!, lfill!