hello
i have a very long column of numbers. i want R to make a new column every
time the value changes from zero.
example for the column:
90.1194354
87.94788274
80.34744843
64.06080347
30.40173724
0
0
0
0
0
16.28664495
23.88707926
29.31596091
48.85993485
13.02931596
0
0
0
7.600434311
20.62975027
29.31596091
32.5732899

for this example i want to get 3 columns.

thanks!

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