wrote:
>> -Original Message-
>> From: r-help-boun...@r-project.org
>> [mailto:r-help-boun...@r-project.org] On Behalf Of Jon Erik Ween
>> Sent: Thursday, December 09, 2010 8:27 AM
>> To: David Winsemius
>> Cc: r-help@r-project.org
>> Subject: Re:
mailto:r-help-boun...@r-project.org] On Behalf Of Jon Erik Ween
>> Sent: Thursday, December 09, 2010 8:27 AM
>> To: David Winsemius
>> Cc: r-help@r-project.org
>> Subject: Re: [R] set dataframe field value from lookup table
>>
>> Sorry, I should have included
> -Original Message-
> From: r-help-boun...@r-project.org
> [mailto:r-help-boun...@r-project.org] On Behalf Of Jon Erik Ween
> Sent: Thursday, December 09, 2010 8:27 AM
> To: David Winsemius
> Cc: r-help@r-project.org
> Subject: Re: [R] set dataframe field va
Offlist comments No reply needed .. This is just for emphasis and
clarification.
On Dec 9, 2010, at 11:19 AM, Jon Erik Ween wrote:
David
I see how findInterval is a more elegant way of doing 1). I'd need
to change the indices in the lookup table, as
findInterval(36, c(0, 17, 19, 24, 29, 3
On Dec 9, 2010, at 11:27 AM, Jon Erik Ween wrote:
Sorry, I should have included the error I get when using the initial
vesion of step 2):
Error in `$<-.data.frame`(`*tmp*`, "DSTz", value = list(Age7 =
c(-1.55, :
replacement has 20 rows, data has 955
In addition: Warning message:
In DSTz
Sorry, I should have included the error I get when using the initial vesion of
step 2):
Error in `$<-.data.frame`(`*tmp*`, "DSTz", value = list(Age7 = c(-1.55, :
replacement has 20 rows, data has 955
In addition: Warning message:
In DSTzlook[, 1] == df$DSF + df$DSB :
longer object length is
David
I see how findInterval is a more elegant way of doing 1). I'd need to change
the indices in the lookup table, as
> findInterval(36, c(0, 17, 19, 24, 29, 34, 44, 54, 64, 69, 74, 79, 84, 89) )
[1] 6
should be 7, not 6. The age range for the 7th column 35-44. But that's easy.
I can't see ho
On Dec 9, 2010, at 10:51 AM, Jon Erik Ween wrote:
Thanks David
What I am trying to do is set up a script that assigns z-scores to a
large dataframe (2500x300, but has Age in years and test scores as
columns.) from a published table of age-corrected standard scores on
this cognitive test.
On Dec 9, 2010, at 10:33 AM, David Winsemius wrote:
On Dec 9, 2010, at 9:34 AM, Jon Erik Ween wrote:
Hi
This is (hopefully) a bit more cogent phrasing of a previous post.
I'm
trying to compute a z-score to rows in a large dataframe based on
values in
another dataframe. Here's the scrip
Thanks David
What I am trying to do is set up a script that assigns z-scores to a large
dataframe (2500x300, but has Age in years and test scores as columns.) from a
published table of age-corrected standard scores on this cognitive test.
1) The age intervals in the lookup table are given and n
On Dec 9, 2010, at 9:34 AM, Jon Erik Ween wrote:
Hi
This is (hopefully) a bit more cogent phrasing of a previous post. I'm
trying to compute a z-score to rows in a large dataframe based on
values in
another dataframe. Here's the script (that does not work). 2 questons,
1) Anyone know of a
Hi
This is (hopefully) a bit more cogent phrasing of a previous post. I'm
trying to compute a z-score to rows in a large dataframe based on values in
another dataframe. Here's the script (that does not work). 2 questons,
1) Anyone know of a more elegant way to calculate the "rounded" age value
t
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