Hi R users,
I really need help with subsetting data frames:
I have a large database of medical records and I want to be able to match
patterns from a list of search terms .
I've used this simplified data frame in a previous example:
db - structure(list(ind = c(ind1, ind2, ind3, ind4), test1
does this do what you want:
db - structure(list(ind = c(ind1, ind2, ind3, ind4), test1 = c(1,
+ 2, 1.3, 3), test2 = c(56L, 27L, 58L, 2L), test3 = c(1.1, 28,
+ 9, 1.2)), .Names = c(ind, test1, test2, test3), class =
+ data.frame, row.names = c(NA,
+ -4L))
terms_include - c(1,2,3)
terms_exclude
Thanks. Such a short and sweet answer that does what it should.
-
Natalie Van Zuydam
PhD Student
University of Dundee
nvanzuy...@dundee.ac.uk
--
View this message in context:
http://r.789695.n4.nabble.com/Subsetting-a-data-frame-with-multiple-values-and-exclusions-tp3874967p3877472.html
Hi all,
I realise that the convention is to provide a working example of my problem
but the data are of a sensitive nature so I'm not able to do that in this
case.
I need to query a database for multiple search terms:
db - structure(list(ind = c(ind1, ind2, ind3, ind4), test1 = c(1,
2, 1.3,
Hi:
Is this what you're after?
f - function(x) !any(x %in% terms_exclude) any(x %in% terms_include)
db[apply(db[, -1], 1, f), ]
ind test1 test2 test3
2 ind2 227 28.0
4 ind4 3 2 1.2
HTH,
Dennis
On Wed, Oct 5, 2011 at 8:53 AM, natalie.vanzuydam nvanzuy...@gmail.com
The 'findCorrelation' function in the caret package may be helpful.
On Tue, Apr 19, 2011 at 3:10 PM, Rita Carreira ritacarre...@hotmail.com wrote:
Hello R Users!
I have a data frame that has many variables, some with missing observations,
and some that are correlated with each other. I
Hello R Users!
I have a data frame that has many variables, some with missing observations,
and some that are correlated with each other. I would like to subset the data
by dropping one of the variables that is correlated with another variable that
I will keep int he data frame. Alternatively,
] subsetting a data frame
on 09/03/2008 05:06 PM joseph wrote:
I have a data frame that looks like this:
V1 V2 V3
ab0:1:12
df1:2:1
cd1:0:9
where V3 is in the form x:y:z
Can someone show me how to subset the rows where the values of x, y and z =
10:
V1 V2 V3
df1:2
, September 6, 2008 10:43:09 AM
Subject: Re: [R] subsetting a data frame
Dear Joseph,
Try
DF[sapply(strsplit(as.character(DF$V3), :),
function(i) all(as.numeric(i) == 10)), ]
HTH,
Jorge
On Sat, Sep 6, 2008 at 1:24 PM, joseph [EMAIL PROTECTED] wrote:
Hello
How can I change the function
) = 10?
Thank you very much
Joseph
- Original Message
From: Marc Schwartz [EMAIL PROTECTED]
To: joseph [EMAIL PROTECTED]
Cc: r-help@r-project.org
Sent: Wednesday, September 3, 2008 3:24:58 PM
Subject: Re: [R] subsetting a data frame
on 09/03/2008 05:06 PM joseph wrote:
I have
.
I want the rows where the sum is 10 for exaple 5:5:0 and 2:2:6
thanks
Joseph
- Original Message
From: Jorge Ivan Velez [EMAIL PROTECTED]
To: joseph [EMAIL PROTECTED]
Sent: Saturday, September 6, 2008 10:43:09 AM
Subject: Re: [R] subsetting a data frame
Dear Joseph,
Try
DF
Velez [EMAIL PROTECTED]
To: joseph [EMAIL PROTECTED]
Sent: Saturday, September 6, 2008 10:43:09 AM
Subject: Re: [R] subsetting a data frame
Dear Joseph,
Try
DF[sapply(strsplit(as.character(DF$V3), :),
function(i) all(as.numeric(i) == 10)), ]
HTH,
Jorge
On Sat, Sep 6, 2008
I have a data frame that looks like this:
V1 V2 V3
ab0:1:12
df1:2:1
cd1:0:9
where V3 is in the form x:y:z
Can someone show me how to subset the rows where the values of x, y and z =
10:
V1 V2 V3
df1:2:1
cd1:0:9
Thanks
Joseph
[[alternative
on 09/03/2008 05:06 PM joseph wrote:
I have a data frame that looks like this:
V1 V2 V3
ab0:1:12
df1:2:1
cd1:0:9
where V3 is in the form x:y:z
Can someone show me how to subset the rows where the values of x, y and z =
10:
V1 V2 V3
df1:2:1
cd
Example data frame:
a = c(Alpha, Beta, Gamma, Beeta, Alpha, beta)
b = c(1:6)
example = data.frame(Title = a, Vals = b)
example
Title Vals
1 Alpha1
2 Beta2
3 Gamma3
4 Beeta4
5 Alpha5
6 beta6
I would like to be able to get a new data frame from this data frame
On 1/21/2008 5:18 AM, Karin Lagesen wrote:
Example data frame:
a = c(Alpha, Beta, Gamma, Beeta, Alpha, beta)
b = c(1:6)
example = data.frame(Title = a, Vals = b)
example
Title Vals
1 Alpha1
2 Beta2
3 Gamma3
4 Beeta4
5 Alpha5
6 beta6
I would like
a = c(Alpha, Beta, Gamma, Beeta, Alpha, beta)
b = c(1:6)
example = data.frame(Title = a, Vals = b)
example
Title Vals
1 Alpha1
2 Beta2
3 Gamma3
4 Beeta4
5 Alpha5
6 beta6
I would like to be able to get a new data frame from this data frame
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