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loops

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Contributor
Posts: 39
Accepted Solution

loops

I want to do using loops

 

Hi, i have below data

p=100000

interest=10%

 will be the total amount after 4 years 

i want below screen result

 

YearPrincipalinterestsum
11000000.1110000
2110000.112100
3121000.113310
4133100.114641

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Solution
‎07-03-2017 10:21 AM
Super User
Posts: 7,758

Re: loops

Posted in reply to shivamarrora0

shivamarrora0 wrote:
Thanks for the explanation , if possible can you please tell the code

I already supplied the code.

I usually solve such problems a little differently, though:

data test;
base = 100000;
int = .10;
do i = 0 to 5;
  p = base * (1 + int) ** i;
  output;
end;
run;

With that formula, you can calculate the value for any year in one single step.

---------------------------------------------------------------------------------------------
Maxims of Maximally Efficient SAS Programmers

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Super User
Posts: 7,758

Re: loops

Posted in reply to shivamarrora0

Please show the code you already have (as this "problem" is really simple), and where it does not meet your expectations.

If you get unexpected messages in the log, post the log of the whole step.

---------------------------------------------------------------------------------------------
Maxims of Maximally Efficient SAS Programmers
Contributor
Posts: 39

Re: loops

Posted in reply to KurtBremser

i  just started learning SAS.

 

data test;

p=100000;

int=.10;

do i = 1 to 5;

p+p*int;

 

end;

run;

 

this code will over right the orginal data

Contributor
Posts: 39

Re: loops

Posted in reply to shivamarrora0
i  just started learning SAS.
 
data test;
p=100000;
int=.10;
do i = 1 to 5;
p+p*int;
 
end;
run;
 
this code will over right the original data
Super User
Posts: 7,758

Re: loops

[ Edited ]
Posted in reply to shivamarrora0

shivamarrora0 wrote:

i  just started learning SAS.

 

data test;

p=100000;

int=.10;

do i = 1 to 5;

p+p*int;

 

end;

run;

 

this code will over right the orginal data


When you run a data step that does not have an explicit output statement, SAS will do one everytime it reaches the end of a data step iteration. See it as a hidden "output" right before the run statement.

If you do not have a statement that let's SAS iterate automatically (like a set that reads from a dataset), then SAS will only do one iteration, and that's it.

So in your case, SAS performs the loop, and then writes one observation with the final values.

To get a series of observations, add the explicit output statement:

data test;
p = 100000;
int = .10;
do i = 1 to 5;
  p + p * int;
  output;
end;
run;

 

---------------------------------------------------------------------------------------------
Maxims of Maximally Efficient SAS Programmers
Contributor
Posts: 39

Re: loops

Posted in reply to KurtBremser
Thanks for the explanation , if possible can you please tell the code
Solution
‎07-03-2017 10:21 AM
Super User
Posts: 7,758

Re: loops

Posted in reply to shivamarrora0

shivamarrora0 wrote:
Thanks for the explanation , if possible can you please tell the code

I already supplied the code.

I usually solve such problems a little differently, though:

data test;
base = 100000;
int = .10;
do i = 0 to 5;
  p = base * (1 + int) ** i;
  output;
end;
run;

With that formula, you can calculate the value for any year in one single step.

---------------------------------------------------------------------------------------------
Maxims of Maximally Efficient SAS Programmers
Contributor
Posts: 30

Re: loops

Posted in reply to KurtBremser

if i invest $5000 each year in account .  after 15 yrs annual rate=10% and compound annual interest rate=10%.

 

also if a fixed term deposite of 25 yrs . Clculate total amount end of term with initial amount 1,00,000. annual interst rate 7%

.find compounded annually and monthly .

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