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Trying to transform x to log(x) - Shazam 11

asked 2013-11-05 14:16:45 +0000

KalleKanon gravatar image

updated 2013-11-05 14:18:34 +0000

Hi there.

Trying to transform x to log from a linlin model. Whats wrong with this command:

GENR x=log(x) ?

Have tried to specify the sample first, without any further luck. When just entering GENR x, the corresponding x-values are produced in Output, so I know the dataset is "connected" to the command window.

Using Shazam 11 btw.

Thank you for helping in advance!

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answered 2013-11-05 15:18:00 +0000

That command looks fine, so perhaps there is a mistake elsewhere in your script. Here is a complete example:

* Create a simple sequence of 1 to 10
sample 1 10
genr x=time(0)
print x
* Generate logs but reuse the same variable
genr x=log(x)
print x

creates the following output:

 |_* Create a simple sequence of 1 to 10
 |_sample 1 10
 |_genr x=time(0)
 |_print x
 X
    1.000000       2.000000       3.000000       4.000000       5.000000
    6.000000       7.000000       8.000000       9.000000       10.00000
 |_* Generate logs but reuse the same variable
 |_genr x=log(x)
 |_print x
 X
   0.0000000E+00  0.6931472       1.098612       1.386294       1.609438
    1.791759       1.945910       2.079442       2.197225       2.302585

Note that if you are using OLS there is are options such as LINLOG or LOGLOG etc you may add to the statement and SHAZAM will do the transformation for you.

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Comments

Briliant. Thank you!

How do I check my script for errors? Im a novice, so please keep it simple :)

KalleKanon gravatar imageKalleKanon ( 2013-11-05 15:36:25 +0000 )edit

Well reading the output for errors or warnings when you run it is best.

Post it here and we can take a look at it for you.

SHAZAMHelp gravatar imageSHAZAMHelp ( 2013-11-05 15:37:48 +0000 )edit
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Asked: 2013-11-05 14:16:45 +0000

Seen: 323 times

Last updated: Nov 05 '13