[R] How to integrate UMLS to opennlp or NLP package in R

[SH.Chou]

Hi,
I am trying to use R's opennlp package with UMLS (Unified Medical Language
System, https://www.nlm.nih.gov/research/umls/) to analyze physician's
notes, but I couldn't find any hint from Google. Any idea how I can achieve
this goal or any tutorials/books/websites I missed? Thanks!

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[R] question about mean

[SH.Chou]

Hi there:
 I have a question about generating mean value of a data.frame. Take
iris data for example, if I have a data.frame looking like the following:
-
Sepal.Length Sepal.Width Petal.Length Petal.WidthSpecies
15.1   3.5  1.4
0.2 setosa
24.9   3.0  1.4
0.2 setosa
34.7   3.2   1.3
   0.2 setosa
. .   .  .
 .  .
. .   .  .
.   .
. .   .  .
.   .
---
There are three different species in this table. I want to make a table and
calculate mean value for each specie as the following table:

-
 Sepal.Length Sepal.Width Petal.Length
Petal.Width
mean.setosa5.0063.428 1.462
  0.246
mean.versicolor   5.936 2.770 4.260
  1.326
mean.virginica  6.5882.974 5.552
  2.026
-
Is there any short syntax can do it?? I mean shorter than the code I wrote
as following:

attach(iris)
mean.setosa-mean(iris[Species==setosa, 1:4])
mean.versicolor-mean(iris[Species==versicolor, 1:4])
mean.virginica-mean(iris[Species==virginica, 1:4])
data.mean-rbind(mean.setosa, mean.versicolor, mean.virginica)
detach(iris)
--

Thanks a million!!!


-- 
=
Shih-Hsiung, Chou
System Administrator / PH.D Student at
Department of Industrial Manufacturing
and Systems Engineering
Kansas State University

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and provide commented, minimal, self-contained, reproducible code.

[R] select one function from two of them

[SH.Chou]

Hi all,  I have two functions called test1() and test2(). Now how do I
select one of them in test3()??

Say
  test3-function(func=test1){
if (func==test1){
   now.func-test1()
   }
   else now.func-test2()
 }

I know this function I wrote does not right. Do anyone can tell me how to do
that for real?

Thanks a million

S.H.

-- 
=
Shih-Hsiung, Chou
Department of Industrial Manufacturing
and Systems Engineering
Kansas State University

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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[R] select one function from two of them in another function

[SH.Chou]

Hi all,  I have two functions called test1() and test2(). Now how do I
select one of them in test3()??

Say
  test3-function(func=test1){
if (func==test1){
   now.func-test1()
   }
   else now.func-test2()
 }

I know this function I wrote does not right. Do anyone can tell me how to do
that for real?

Thanks a million

S.H.

-- 
=
Shih-Hsiung, Chou
Department of Industrial Manufacturing
and Systems Engineering
Kansas State University



-- 
=
Shih-Hsiung, Chou
Department of Industrial Manufacturing
and Systems Engineering
Kansas State University

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R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[R] function eigen AND Minitab

[SH.Chou]

Hi all. I got a question about eigenvector. I've tried input a symmetric
matrix to both R (using eigen function) and minitab, but the result is
really different. Can anyone tell me what's wrong with that?

Thanks.

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and provide commented, minimal, self-contained, reproducible code.