I'd like to drop all variables with a certain character segment in the name. Example below:
var1 var2 var3 o_var1 o_var2 o_var3
1 1 1 3 2 5
7 3 4 . -1 5
I'd like to only keep those without the "o_" in front. I could sort positionally and keep the first x number of variables, but with 100s of variables with this pattern, I wanted to seek an alternative.
Just use the colon wildcard operator.
data want;
set have (drop=o_:); /* drops all variables beginning with o_ */
run;
Related
I'm creating a calculation table and want to align the numbers on the left under the '+'.
But somehow the first number in each column from the counter has some space before it.
How can I eliminate that space and align my table so that the left side is all in one row?
Code:
DATA: counter TYPE i,
counter2 TYPE i.
ULINE /(159).
WRITE: /1 sy-vline , '+', sy-vline.
DO 11 TIMES.
counter = sy-index - 1 .
WRITE: counter, sy-vline.
ENDDO.
ULINE /(159).
DO 11 TIMES.
counter = sy-index - 1 .
WRITE: /1 sy-vline , counter , sy-vline.
ULINE /(159).
ENDDO.
The spaces in front of the number are there because of the data type. Type i is an elementary data type and can have numbers from -2147483648 to 2147483647, which means it can be 11 characters long. Some data types have an output length that is variable, but that is not the case for i. You can see that if you click on it in your output, it should have a red outline 11 characters long.
But if you would rather have the spaces at the end of the number, then you can use 'CONVERSION_EXIT_ALPHA_OUTPUT'. But the "table outline" will still have to be just as big, since the number can have 11 characters.
DATA: counterc TYPE c LENGTH 11.
...
MOVE counter TO counterc.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
EXPORTING
input = counterc
IMPORTING
output = counterc.
...
WRITE: ... counterc ...
Alternatively, the output of a table looks way better if you use SALV. Look here for example, to see how to output a table using SALV.
[SPSS] How can I copy values from a variable (column) and paste it below the other one by syntax?
I need to merge 10 columns and I cant do this only by copy paste.
I have this: [1]: https://i.imgur.com/I5DFV.jpg "tooltip"
var1 var2
1 3 6
2 4 7
3 5 8
4
5
.
.
.
and I want this:
newvar
1 3
2 4
3 5
4 6
5 7
6 8
If you want to create new lines (so you get two lines with one variable instead of one line with two variables), You can use varstocases like this:
varstocases /make NewVar from Var1 Var2/index=originVar(NewVar).
this will get both the old variables into the new one, and create an additional variable called originVar which will contain the name of the original variable that each number in NewVar came from.
ADDITION:
if your file was originally sorted by a specific variable(s) you can now just sort again by your original variable and by originVar. If you don't have a variable that conserves the original order, just create one before rustructure:
compute OrigOrder=$casenum.
restructure....
sort cases by OrigOrder originVar./* or by originVar OrigOrder.
Your example may imply that you already have empty lined to which you want to copy values from previous lines. This is a different situation, you can do it this way:
compute NewVar=Var1.
if missing(NewVar) NewVar=lag(Var2).
I want to assign a new variable from existing highest n variable.
So if we have a table that has increasing number of columns -
data have;
input uid $ var1 $ var2 $ var3 $;
datalines;
1111 1 0 1
2222 1 0 0
3333 0 0 0
4444 1 1 1
5555 0 0 0
6666 1 1 1
;
I want derive the variable var3 as final_code.
data want;
set have;
final_code = max(of var1-var3);
run;
Above doesn't make sense here as I want only var3 column to remain. Similarly, if var4 is there, I wish to have var4 only.
Does somebody want to help me here ?
If I understand you right, you don't want max of the values but the value from the highest-numbered-variable.
Lots of ways to do this, which way depends on how the variables are named. Here's the easiest, if they're actually named as you say.
data want;
set have;
array var[*] var:;
final_code = var[dim(var)];
run;
Here we make an array out of var: and then choose the last element in the array using dim (to say the size of the array).
I think this is what you are looking for is:
%let n=3
data want;
set have;
var&n = max(of var1-var&n);
drop var1-var%eval(&n-1);
run;
The macro variable &n holds the value of n. This acts as a substitution during the compilation phase of the code.
The DROP statement tells the data step to drop those variable.
The %eval() macro function performs integer math on macro values. So we are dropping 1 through N-1.
I have a problem in SAS, I would like to know how can I input several columns in only one column(put everything in a single variable)?
For example, I have 3 columns but I would like to put this 3 columns in only one column.
like this:
1 2 3
1 3 1
3 4 4
output:
1
1
3
2
3
4
3
1
4
I'm assuming you're reading from a file, so use the trailing ## to keep reading variables past the end of the line:
data want;
input a ##;
cards;
1 2 3
1 3 1
3 4 4
;
run;
If the dataset is not big just split it to several small data set with one variable each, then rename all variables to one name and concatenate vertiacally using simple set statement. I am sure there are more elegant solutions than this one and if your data set is big let me know, I will write the actual code needed to perform this action with optimal coding
I would like to do something very simple, but it doesn't work
This is a simple example but I intend to use it for some more complex stuff
the output I want is :
obs. dummy newcount
1 3 1
2 5 2
3 2 3
but the output I get is :
obs. dummy newcount
1 3 1
2 5 1
3 2 1
here is my code
data test;
input dummy;
cards;
3
5
2
;
run;
%let count=1;
data test2;
set test;
newcount = &count.;
%let count = &count. + 1;
run;
The variable count doesn't get incremented. How do I do this?
Thanks for your help !
You're mixing macro variables and datastep variables in a way you cannot. Macro variables used in the data step in most cases have to have their values already defined prior to the data step when used like this; what happens is the data step compiler immediately resolves &count to the number 1, and uses that number 1 in its compilation, not the macro variable's newer values.
Further, the %let is not a data step command but a macro statement - it is also only executed once, not one time per data step pass.
You could use
data test2;
set test;
newcount = symget("count");
call symput("count",newcount+1);
put _all_;
run;
and it would work (call symput is how you define a macro variable in a data step, symget is how you retrieve the value of a macro variable that isn't finalized before the data step begins). It is probably not a good idea, however - you shouldn't generally store data values in macro variables and interact repeatedly with them inside a data step. If you post more details about why you're trying to do this (ie, what your actual goal is) I'm sure several of us could offer some suggestions for how to approach the problem.