Hi All,
I have attached SAS Data Set, New_Gold needs to calculate as
If _n_ then .
if _n_=2 then (Obs2-Obs1)^2
if _n_=3 then (obs3-obs2)^2
if _n_=4 then (Obs4-Obs3)^2 etc
As a first step I am using Lag function.
New_Gold=Lag(1_GoldS)
I am getting the follwing error, Please advise.
ERROR 22-322: Syntax error, expecting one of the following: !, !!, &, *, **, +, ',', -, /, <, <=, <>, =, >, ><, >=, AND, EQ, GE,
GT, IN, LE, LT, MAX, MIN, NE, NG, NL, NOTIN, OR, ^=, |, ||, ~=.
ERROR 72-185: The LAG function call has too many arguments.
Seems like you could get what you want with:
new_gold = dif(GoldS)**2;
It will generate a missing value on the first observation, but that is expected.
If you are stuck on using LAG instead of DIF:
new_gold = lag(GoldS);
if _n_=1 then new_gold=.;
else new_gold = (GoldS - new_gold)**2;
Note that SAS uses ** (not ^) to indicate raising to a power.
Good luck.
Hi All,
I have data as attached. New_Gold needs to calculate as
If _n_ then .
if _n_=2 then (Obs2-Obs1)^2
if _n_=3 then (obs3-obs2)^2
if _n_=4 then (Obs4-Obs3)^2 etc
As a first step I am using Lag function.
New_Gold=Lag(1_GoldS)
I am getting the follwing error, Please advise.
ERROR 22-322: Syntax error, expecting one of the following: !, !!, &, *, **, +, ',', -, /, <, <=, <>, =, >, ><, >=, AND, EQ, GE,
GT, IN, LE, LT, MAX, MIN, NE, NG, NL, NOTIN, OR, ^=, |, ||, ~=.
ERROR 72-185: The LAG function call has too many arguments.
Thanks Reeza for your quick reply, I got it.
Seems like you could get what you want with:
new_gold = dif(GoldS)**2;
It will generate a missing value on the first observation, but that is expected.
If you are stuck on using LAG instead of DIF:
new_gold = lag(GoldS);
if _n_=1 then new_gold=.;
else new_gold = (GoldS - new_gold)**2;
Note that SAS uses ** (not ^) to indicate raising to a power.
Good luck.
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