I have a data frame that looks like
id1-c(1,1,2,2,3,3,4,5,5,6,6,7,8,9,9,10)
id2-c(22,22,34,34,15,15,76,45,45,84,84,37,52,66,66,91)
GENDER-sample(c(G-UNK,G-M,G-F),16, replace = TRUE)
ETH -sample(c(E-AF,E-UNK,E-VT),16, replace = TRUE)
example-cbind(id1,id2,GENDER,ETH)
where there are two id's and
Hello All,
I am trying to build a model in R. I am facing the following problem...
My Data Frame contains the following data...
DateValue
08/01/2013100
08/02/2013 100.5
08/03/2013 102
Hello,
Try the following.
dat - read.table(text =
DateValue
08/01/2013100
08/02/2013 100.5
08/03/2013 102
, header = TRUE)
dat$New - c(NA, diff(dat$Value))
dat
Hope this helps,
Rui
Thanks Rui, but this does not change the value in the new column
automatically if I change the value in the data column. Any ideas?
Regards,
Ankur Seth
On Sat, Sep 7, 2013 at 2:11 PM, Rui Barradas ruipbarra...@sapo.pt wrote:
Hello,
Try the following.
dat - read.table(text =
Date
Hello,
It will not change the value automatically, you will have to rerun the code.
Rui Barradas
Em 07-09-2013 11:52, Ankur Seth escreveu:
Thanks Rui, but this does not change the value in the new column
automatically if I change the value in the data column. Any ideas?
Regards,
Ankur Seth
Hello,
No, I don't believe so. If you change one column and want another column
to change you have to tell R to do it.
Rui Barradas
Em 07-09-2013 12:19, Ankur Seth escreveu:
Is there a way in which I can setup a model like that?
Regards,
Ankur Seth
On Sat, Sep 7, 2013 at 4:49 PM, Rui
Is there a way in which I can setup a model like that?
Regards,
Ankur Seth
On Sat, Sep 7, 2013 at 4:49 PM, Rui Barradas ruipbarra...@sapo.pt wrote:
Hello,
It will not change the value automatically, you will have to rerun the
code.
Rui Barradas
Em 07-09-2013 11:52, Ankur Seth escreveu:
Hello,
What you can do is to write a function to do the change. When you want
to change a value in column Value, it will update the value in column
New. Something like this:
fun - function(data, row, newval){
data$Value[row] - newval
data$New - c(NA, diff(data$Value))
There are a number of discussions on the interwebs about this problem,
try googleing the error. Starting points might be
http://stackoverflow.com/questions/11374211/jpype-cant-start-the-awt-because-java-was-started-on-the-first-thread
Folks:
1. Ankur needs to read An Introduction to R or other R tutorial (on the
web, say), as it appears that he has not made much of an effort to learn
how R works. In particular, R is not a data base and does not (normally, at
user level) use pointers/references. So no automatic updating.
2. In
Hi,
example- data.frame(id1,id2,GENDER,ETH,stringsAsFactors=FALSE)
res-unique(example[!(grepl(UNK,example$GENDER)|grepl(UNK,example$ETH)),])
res
# id1 id2 GENDER ETH
#1 1 22 G-M E-VT
#3 2 34 G-M E-AF
#5 3 15 G-M E-AF
#7 4 76 G-F E-VT
#8 5 45 G-F E-VT
#12
Hi all,
Is there a way to change the color of the boxplot plots outliers?
Thanks.
Hanna
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PLEASE do read the posting
Hi,
summary(pres.gam)
Family: gaussian
Link function: identity
Formula:
prestige ~ s(income) + s(education)
Parametric coefficients:
Estimate Std. Error t value Pr(|t|)
(Intercept) 47.3276 0.6914 68.45 2e-16 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05
On Sep 7, 2013, at 10:44 AM, li li hannah@gmail.com wrote:
Hi all,
Is there a way to change the color of the boxplot plots outliers?
Thanks.
Hanna
If you review ?boxplot, you will see that ?bxp is listed in the See Also
section and is used for the actual plotting. In ?bxp is a
Hi,
Suppose you have situations like this: (duplicates are both UNKNOWN and want to
remove those)
example1-rbind(example,data.frame(id1=c(11,12,12),id2=c(93,95,95),GENDER=rep(G-UNK,3),ETH=rep(E-UNK,3)))
spl- as.character(interaction(example1$id1,example1$id2))
try this. Splits the dataframe based on the two IDs and then chooses
the first one in cases where condition not met.
id1-c(1,1,2,2,3,3,4,5,5,6,6,7,8,9,9,10)
id2-c(22,22,34,34,15,15,76,45,45,84,84,37,52,66,66,91)
GENDER-sample(c(G-UNK,G-M,G-F),16, replace = TRUE)
ETH
Hi,
sini- sin(i)
is.vector(sini)
#[1] TRUE
lni- log(i)
is.vector(lni)
#[1] TRUE
x-cbind(int=1,sini,lni)
is.matrix(x)
#[1] TRUE
t(x)*x
#Error in t(x) * x : non-conformable arrays
t(x)%*%x
# int sini lni
#int 20.000 0.9982219 42.3356165
#sini 0.9982219
If spacing is critical, use 'sprintf' for creating the output.
Lines1- read.csv(textConnection(Year, Day, Hour, Value
+ 2010, 001,0,15.9
+ 2010, 001,1,7.3
+ 2010, 001,2,5.2
+ 2010, 001,3,8.0
+ 2010, 001,4,0.0
+ 2010, 001,5,12.1
+ 2010,
I am trying to add a column to a data frame. Each day for each stock I
make a prediction for a future date. Then I need to compare my
predictions to the actual values. So looking at the first row of data:
For Stock A on 2011-01-01 I predicted that on 2011-01-02 the price would
be 10.25.
Now I
Hi,
The expected output is not clear.
dat1- read.table(text=ID diag1 diag2 diag3 proc1 proc2 proc3
1 k23 i269 j123 u123 u456 u123
2 k69 i80 u456 z456 z123 z456
3 l91 i801 g678 u456 u123 u123
4 i80 i90 h983 z123 z456 z456,sep=,header=TRUE,stringsAsFactors=FALSE)
vec1-
Hi,
Using the same example:
str1-paste(colnames(dat1)[grepl(diag,colnames(dat1))],%in%,vec1,collapse=|)
subset(dat1,eval(parse(text=str1)))
# ID diag1 diag2 diag3 proc1 proc2 proc3
#2 2 k69 i80 u456 z456 z123 z456
#3 3 l91 i801 g678 u456 u123 u123
#4 4 i80 i90 h983 z123
HI Matt,
I changed the dates a little bit to show dates that are outside the range in
dataset B.
A- read.table(text=
ID Date Depth Temp
1 2002-05-12 10 12
1 2003-05-13 10 12
1 2003-05-14 10 12
1 2004-04-15 10 12
2
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