About UCFtigers2017

UCFtigers2017 · ‎03-20-2018

Thanks, I summed and divided in the data step. data uniform1 (drop = x); do n = 10, 100, 200, 500, 1000, 5000, 10000 ; do i = 1 to 100 ; sumx = 0 ; do a = 1 to n ; x = rand('Uniform'); sumx + x ; meanx = sumx / n ; end ; y = meanx ; output ; end; end; run ;

UCFtigers2017 · ‎03-20-2018

Hello. I need to take a sample of 10 random numbers from the Uniform(0,1) distribution then calculate the sample mean. I then need to do this 100 times so that I get 100 sample means all from samples of size 10. Then I need 100 sample means from sample size 100. Then continues on for a total 7 different sample sizes. The resulting data set should have two columns: 1. The sample size of the sample that the sample mean was calculated from 2. The sample mean It should have 700 entries. 100 for each sample size. I started with nested for loops but I am stuck on how to calculate the sample mean once I obtain the sample. See code below data uniform (drop = x); do n = 10, 100, 200, 500, 1000, 5000, 10000 ; do i = 1 to 100 ; do a = 1 to n ; x = rand('Uniform'); end ; y = mean(x); /* not right.*/ output ; end; end; run ; I know that this does not work because y = mean(x) will just take the mean of one value- the value of x on the nth loop. I can't figure out how to get the mean of just the sample taken in the third do loop. Thanks.

UCFtigers2017 · ‎03-07-2018

Thank you!

UCFtigers2017 · ‎03-07-2018

Thank you !

UCFtigers2017 · ‎03-05-2018

Below is a simple macro I need to create for an assignment. But I am having an issue that I do not understand. The data is called homework.cereal and the name of it is assigned to a macro variable &name. It has a bunch of cereals, the manufacturer of the cereal, 12 numeric variables describing each cereal such as amount of protein, sugar etc. . The macro needs to be able to take any of the the numeric variables from the data set, for example sugar. And then it needs to create a macro variable for each brand where the value assigned to it is the mean amount of sugar for that brand. Everything in the macro seems to be good except that I keep getting errors that the name of the macro can't have a symbol it it. So it is reading &variable in the first argument of call symput as it is instead of putting in 'sugar'. How do i fix this? %macro create_macros(variable) ; title "Means of &variable by Manufacturer" ; proc means data = &name ; class manufacturer; var &variable ; output out = stats mean = ; run; data _null_; set stats; call symput("&variable"||manufacturer,&variable); run; %mend create_macros; error message : NOTE: Invalid argument to function SYMPUT('&variable_P'[12 of 25 characters shown],' 144.375') at line 232 column 175. Manufacturer=Post _TYPE_=1 _FREQ_=8 Sodium=144.375 _ERROR_=1 _N_=6 ERROR: Symbolic variable name &VARIABLE_QUAKEROATS must contain only letters, digits, and underscores.

UCFtigers2017 · ‎10-31-2017

I am looking for help with how to do what I believe is a many - to - one merge (if possible). I have 2 data sets : A. car crashes (each observation is a crash) B. car vehicles involved in a crash (each observation is a car in one of the crashes in first data set) I have an indicator called "distract" in data set B that determines whether the driver of that car was distracted while driving. 0 = not distracted 1 = distracted I want a merge into data set A so that that the crash takes on the value of 1 if ANY of the cars involved in that crash had a distracted driver. Another way that could be acceptable, is the "distract" variable in the new merged set can take on the value of the SUM of distracted drivers involved in the crash. Thanks! in case you need to know, they are merging by caseid year psu .

UCFtigers2017 · ‎10-16-2017

proc sgplot data = americas ; series x = year y = prisonpop / group = country ; run; What is SIMPLEST way to fix this graph so you can see the trajectories of all the other countries? When I tried specifying the y axis values, SAS automatically shrunk it back down again.

UCFtigers2017 · ‎10-12-2017

I want a new variable that contains the number version of their grade. How can I can I do this with less code? data students5 ; set students4 ; if results = 'A' then resultsNum = 4 ; if results = 'B' then resultsNum = 3 ; if results = 'C' then resultsNum = 2 ; if results = 'D' then resultsNum = 1 ; if results = 'F' then resultsNum = 0 ; run;

UCFtigers2017 · ‎10-11-2017

I have a string variable called degree that contains student's majors. My problem is that the majors were written in so they are not uniform. For example: for history majors, some say "history" and some say "mod-hist". Some say "stat" while some say "statistics". Some are capitalized, some are not. I need to make all of the majors have a uniform label. I want all of the history majors to have "history" as their major. All of the stats majors to have "statistics" as their major. (etc). What is the most simple way to do this? I was trying to find somewhere to search for a substring such as "hist" and then replace that WHOLE string value (not just the substring) with "history" but I haven't found a way to do that.

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Date Last Visited	‎04-16-2018 05:45 PM

Re: Generating Sample Means From Uniform Distribution

Generating Sample Means From Uniform Distribution

Re: simple create macro function

Re: simple create macro function

simple create macro function

Help with a Merge

How to make y axis longer on sgplot

Creating new variables with many if statements - How to shorten it?

Replacing whole string IF that string contains a certain sub string.

Re: simple create macro function

Re: simple create macro function

Re: Generating Sample Means From Uniform Distribution

Generating Sample Means From Uniform Distribution

Re: simple create macro function

Re: simple create macro function

simple create macro function

Help with a Merge

How to make y axis longer on sgplot

Creating new variables with many if statements - How to shorten it?

Replacing whole string IF that string contains a certain sub string.