.)
Bert Gunter
Genentech Nonclinical Biostatistics
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On
Behalf Of moleps
Sent: Monday, April 05, 2010 11:46 AM
To: r-help@r-project.org
Subject: [R] Data manipulation problem
Dear R´ers
Bert Gunter wrote:
Yes. Don't do this.
(what you probably really want to do is fit a model with age as a factor,
which can be done statistically e.g. by logistic regression; or
graphically
using conditioning plots, e.g. via trellis graphics (the lattice package).
This avoids the
-project.org] On
Behalf Of moleps
Sent: Monday, April 05, 2010 11:46 AM
To: r-help@r-project.org
Subject: [R] Data manipulation problem
Dear R´ers.
I´ve got a dataset with age and year of diagnosis. In order to
age-standardize the incidence I need to transform the data into a
matrix
with age-groups
-project.org
Subject: [R] Data manipulation problem
Dear R´ers.
I´ve got a dataset with age and year of diagnosis. In order to
age-standardize the incidence I need to transform the data
into a
matrix
with age-groups (divided in 5 or 10 years) along one axis and
year
divided
into 5 years along
Gunter
Genentech Nonclinical Biostatistics
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of moleps
Sent: Monday, April 05, 2010 11:46 AM
To: r-help@r-project.org
Subject: [R] Data manipulation problem
Dear R´ers.
I´ve got
Sent: Monday, April 05, 2010 11:46 AM
To: r-help@r-project.org
Subject: [R] Data manipulation problem
Dear R´ers.
I´ve got a dataset with age and year of diagnosis. In order to
age-standardize the incidence I need to transform the data into
a matrix
with age-groups (divided in 5 or 10 years
Genentech Nonclinical Biostatistics
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org
] On
Behalf Of moleps
Sent: Monday, April 05, 2010 11:46 AM
To: r-help@r-project.org
Subject: [R] Data manipulation problem
Dear R´ers.
I´ve got a dataset
Dear R´ers.
I´ve got a dataset with age and year of diagnosis. In order to age-standardize
the incidence I need to transform the data into a matrix with age-groups
(divided in 5 or 10 years) along one axis and year divided into 5 years along
the other axis. Each cell should contain the number
?cut to create categories
?table to make the table
moleps wrote:
Dear R´ers.
I´ve got a dataset with age and year of diagnosis. In order to age-standardize the incidence I need to transform the data into a matrix with age-groups (divided in 5 or 10 years) along one axis and year divided into 5
11:46 AM
To: r-help@r-project.org
Subject: [R] Data manipulation problem
Dear R´ers.
I´ve got a dataset with age and year of diagnosis. In order to
age-standardize the incidence I need to transform the data into a matrix
with age-groups (divided in 5 or 10 years) along one axis and year divided
.)
Bert Gunter
Genentech Nonclinical Biostatistics
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of moleps
Sent: Monday, April 05, 2010 11:46 AM
To: r-help@r-project.org
Subject: [R] Data manipulation problem
Dear R´ers
Nonclinical Biostatistics
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of moleps
Sent: Monday, April 05, 2010 11:46 AM
To: r-help@r-project.org
Subject: [R] Data manipulation problem
Dear R´ers.
I´ve got a dataset with age and year
.)
Bert Gunter
Genentech Nonclinical Biostatistics
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of moleps
Sent: Monday, April 05, 2010 11:46 AM
To: r-help@r-project.org
Subject: [R] Data manipulation problem
Dear R´ers
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