I have this type of data:
Hour | X |
0 | 70232 |
1 | 68422 |
2 | 67014 |
3 | 66068 |
4 | 65781 |
5 | 66308 |
6 | 67559 |
7 | 69150 |
8 | 69788 |
9 | 70685 |
and I'd like to have a delta(x) as a new variable delta(x) = Next - Current so the data would look like this:
Hour | X | Delta X |
0 | 70232 | -1810 |
1 | 68422 | -1408 |
2 | 67014 | ... |
3 | 66068 | ... |
4 | 65781 | ... |
5 | 66308 | ... |
6 | 67559 | ... |
7 | 69150 | ... |
8 | 69788 | ... |
9 | 70685 | ... |
data have;
input Hour X;
cards;
0 70232
1 68422
2 67014
3 66068
4 65781
5 66308
6 67559
7 69150
8 69788
9 70685
;
data want;
merge have have(firstobs=2 rename=(x=_x));
delta=_x-x;
drop _x;
run;
data have;
input Hour X;
cards;
0 70232
1 68422
2 67014
3 66068
4 65781
5 66308
6 67559
7 69150
8 69788
9 70685
;
data want;
merge have have(firstobs=2 rename=(x=_x));
delta=_x-x;
drop _x;
run;
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