Hi Jean,
If we convert the NEWMatrix to dataframe,then headers do appear.
NewMatrix1<-data.frame(NewMatrix)
?NewMatrix1
???????????? X1 X2 X3 X4
SumMatrix?? SUM 57 64 65
CountMat? COUNT? 3? 3? 3
#assigning headers to NULL
?colnames(NewMatrix1)<-NULL
?NewMatrix1
???????????? NA NA NA NA
SumMatrix?? SUM 57 64 65
CountMat? COUNT? 3? 3? 3
names(NewMatrix1)
NULL
I guess then it will be better to store as matrix.
A.K.
----- Original Message -----
From: Jean V Adams <jvadams at usgs.gov>
To: Rantony <antony.akkara at ge.com>
Cc: r-help at r-project.org
Sent: Thursday, July 12, 2012 8:42 AM
Subject: Re: [R] Add row into a Matrix witout headers from Function
Try using the rbind() function to combine the two vectors from colSums()
into a matrix.? Then assign row names and get rid of column names using
the dimnames() function.? For example:
OLDMatrix <- matrix(c(22, 25, 10, 24, 27, 13, 23, 27, 15),
? ? ? ? ncol=3, dimnames = list(NULL, c("X1", "X2", "X3")))
NEWMatrix <- rbind(colSums(OLDMatrix ), colSums(!is.na(OLDMatrix )))
dimnames(NEWMatrix) <- list(c("SUM", "COUNT"), NULL)
OLDMatrix
? ? X1 X2 X3
[1,] 22 24 23
[2,] 25 27 27
[3,] 10 13 15
NEWMatrix
? ? ? [,1] [,2] [,3]
SUM? ? 57? 64? 65
COUNT? ? 3? ? 3? ? 3
Jean
Rantony <antony.akkara at ge.com> wrote on 07/12/2012 12:22:53 AM:
Hi,
Here i have a matrix like this,
OLDMatrix <-
X1? ? ? ? X2? ? ? ? X3
-----? ? ? ------? ? ------
22? ? ? ? ? 24? ? ? ? 23
25? ? ? ? ? 27? ? ? ? 27
10? ? ? ? ? 13? ? ? ? 15
the thing is,
im running two function(SUM,COUNT) to get output in another matrix
called
NEWMatrix
NEWMatrix <- c("SUM",colSums(OLDMatrix ))
NEWMatrix? <- c("COUNT",colSums(!is.na(OLDMatrix )))
Actually i need to get output like this,
NEWMatrix <-
SUM? ? ? 57? ? ? 64? ? ? ? 65
COUNT? 3? ? ? ? 3? ? ? ? ? 3
Instead of getting out put like above, new row getting replaced by new
row
of vales.
and after executing the function i getting the values with header. How
can i
insert row
of vales into NewMatrix without header. ?
Can anyone please help me ?
Thanks & Regards,
-Antony