topic Re: Which CDF Function would I use to demonstrate this problem ? in SAS Programming

Which CDF Function would I use to demonstrate this problem ?

Godzilla_Hat — Thu, 14 Oct 2021 01:04:38 GMT

Re: Which CDF Function would I use to demonstrate this problem ?

Reeza — Thu, 14 Oct 2021 02:26:28 GMT

CDF Normal
https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.5/lefunctionsref/n1rnj32uvtwnvfn1kwnsg9d6w6h7.htm

@Godzilla_Hat wrote:

Re: Which CDF Function would I use to demonstrate this problem ?

Godzilla_Hat — Thu, 14 Oct 2021 03:33:37 GMT

data elevator;
	Mean = 1000;
	Sigma = 150;
	Input X;

p = CDF('Normal',x,Mean,Sigma);


Pdiff = CDF('Normal',850,Mean,Sigma) -CDF('Normal',1150,Mean,Sigma);
drop sigma mean;

This is what I wrote so far. How would I implement the code that uses the empirical rule of 68%,95%, and 99.7%. I understand that I must add and subtract the standard deviation from the mean but how would that look like in code ?

Re: Which CDF Function would I use to demonstrate this problem ?

Reeza — Thu, 14 Oct 2021 03:48:32 GMT

You almost have the 68% one - check your output and rethink the direction of your subtraction.

You can do basic math but it says you need to use cards/datalines so you can do the math in your head and just pass them to SAS, no need to make it harder than that.

Re: Which CDF Function would I use to demonstrate this problem ?

Godzilla_Hat — Thu, 14 Oct 2021 04:38:12 GMT

Thank you ! I think I got it. How does this look ?

data elevator;
infile datalines dlm=','; 
	Mean = 1000;
	Sigma = 150;
Input X Y;

Pdiff = CDF('Normal',X,Mean,Sigma) - CDF('Normal',Y,Mean,Sigma);

drop sigma mean;
datalines;
850,1150
700,1300
550,1450
;
proc print data=elevator;
run;

Re: Which CDF Function would I use to demonstrate this problem ?

Ksharp — Thu, 14 Oct 2021 12:32:59 GMT

Calling @Rick_SAS

Re: Which CDF Function would I use to demonstrate this problem ?

Reeza — Thu, 14 Oct 2021 14:52:40 GMT

Looks right to me!