topic Re: SAS Export in SAS Programming

SAS Export

mk131190 — Wed, 30 Mar 2016 14:31:28 GMT

Hello,

I use enterprise guide (for coding not point and click) and I was looking to export a large dataset into a CSV file.

I was going to use a proc export as I need to use the delimiter '|'. An issue I have is I want all the character variables to be output within double quotations (" ") and the numeric/date variables to be output without them.

Is there a quick way of achieving this?

Re: SAS Export

data_null__ — Wed, 30 Mar 2016 14:39:33 GMT

Try this, I did not make the name row.

40         data _null_;
41            set sashelp.class;
42            file log dlm='|';
43            put (_all_)(:);
44            format _character_ $quote128.;
45            run;

"Alfred"|"M"|14|69|112.5
"Alice"|"F"|13|56.5|84
"Barbara"|"F"|13|65.3|98
"Carol"|"F"|14|62.8|102.5
"Henry"|"M"|14|63.5|102.5
"James"|"M"|12|57.3|83
"Jane"|"F"|12|59.8|84.5
"Janet"|"F"|15|62.5|112.5
"Jeffrey"|"M"|13|62.5|84
"John"|"M"|12|59|99.5
"Joyce"|"F"|11|51.3|50.5
"Judy"|"F"|14|64.3|90
"Louise"|"F"|12|56.3|77
"Mary"|"F"|15|66.5|112
"Philip"|"M"|16|72|150
"Robert"|"M"|12|64.8|128
"Ronald"|"M"|15|67|133
"Thomas"|"M"|11|57.5|85
"William"|"M"|15|66.5|112

Re: SAS Export

data_null__ — Wed, 30 Mar 2016 15:06:56 GMT

I added NAME row not quote. Notice that the absence of DSD will make that slightly different from PROC EXPORT. But with DSD the quotes are doubled and double quoted.

40         data _null_;
41            set sashelp.heart(obs=50);
42            file log dlm='|' ls=256;
43            if _n_ eq 1 then link names;
44            put (_all_)(:);
45            format _character_ $quote128.;
46            return;
47         names:
48            length _name_ $32;
49            do while(1);
50               call vnext(_name_);
51               if upcase(_name_) eq '_NAME_' then leave;
52               put _name_ @;
53               end;
54            put;
55            run;


Status|DeathCause|AgeCHDdiag|Sex|AgeAtStart|Height|Weight|Diastolic|Systolic|MRW|Smoking|AgeAtDeath|Cholesterol|Chol_Status|BP_Status|Weight_Status|Smoking_Status
"Dead"|"Other"|.|"Female"|29|62.5|140|78|124|121|0|55|.|""|"Normal"|"Overweight"|"Non-smoker"
"Dead"|"Cancer"|.|"Female"|41|59.75|194|92|144|183|0|57|181|"Desirable"|"High"|"Overweight"|"Non-smoker"
"Alive"|""|.|"Female"|57|62.25|132|90|170|114|10|.|250|"High"|"High"|"Overweight"|"Moderate (6-15)"
"Alive"|""|.|"Female"|39|65.75|158|80|128|123|0|.|242|"High"|"Normal"|"Overweight"|"Non-smoker"
"Alive"|""|.|"Male"|42|66|156|76|110|116|20|.|281|"High"|"Optimal"|"Overweight"|"Heavy (16-25)"
"Alive"|""|.|"Female"|58|61.75|131|92|176|117|0|.|196|"Desirable"|"High"|"Overweight"|"Non-smoker"
"Alive"|""|.|"Female"|36|64.75|136|80|112|110|15|.|196|"Desirable"|"Normal"|"Overweight"|"Moderate (6-15)"
"Dead"|"Other"|.|"Male"|53|65.5|130|80|114|99|0|77|276|"High"|"Normal"|"Normal"|"Non-smoker"
"Alive"|""|.|"Male"|35|71|194|68|132|124|0|.|211|"Borderline"|"Normal"|"Overweight"|"Non-smoker"

Re: SAS Export

mk131190 — Wed, 30 Mar 2016 15:38:54 GMT

My character variables are coming out "" ""|"" ""

Is there a reason why they are in 2 lots of double quotes?

Re: SAS Export

data_null__ — Wed, 30 Mar 2016 15:41:56 GMT

If you used DSD option that will cause it. Show your program.

Re: SAS Export

SAS_inquisitive — Wed, 30 Mar 2016 17:23:37 GMT

@data_null__ Can you explain how DOW WHILE (1) is working and what is _name_ variable?

Re: SAS Export

data_null__ — Wed, 30 Mar 2016 17:32:40 GMT

@SAS_inquisitive DO WHILE(1); is infinite loop. Notice the LEAVE statement to exit.

_NAME_ is the value returned from CALL VNEXT. It is the name of a variable from the PDV.

Each time VNEXT is executed it returns the "next" variable in the PDV. It provides a way to iterate across the PDV. It will also return the length and type of the variable.

In some other languages it might be writen using FOR statement a list iterator.

for NAME in PDV do
   end