Hi iLai,
What you showed below, almost same like I am also expecting.
There is two matrix,
1) 1st - matrix contain values like this,
ABC XYZ PQR ABC_CHECK
XYZ_CHECK PQR_CHECK
---- ---- ----
---------------- -------------- -----------------
10 20 30
40 50 60
70 80 90
2)2nd matrix have some conditions, need to check with
1st matrix columns. Like this,
CHECK FOR
CONDITION
--------------
-----------------
ABC_CHECK
ABC > 10 & XYZ < 30 & PQR <90
XYZ_CHECK
ABC > 9 & XYZ < 25 & PQR <60
PQR_CHECK
ABC > 60 & XYZ < 79 & PQR <100
Here I need to change the cell content that already created
["ABC_CHECK"," XYZ_CHECK"," PQR_CHECK"]
So,
Finally the result should get like this,
ABC XYZ PQR ABC_CHECK
XYZ_CHECK PQR_CHECK
---- ---- ----
---------------- -------------- -----------------
10 20 30
FALSE TRUE FALSE
40 50 60
FALSE FALSE FALSE
70 80 90
FALSE FALSE TRUE
And can please tell me which is the best way to do this ?, Can we do
this with-out loop ?
And, Is it possible to put any other character instead of TRUE & FALSE
?, like this
Here
For TRUE = T , FLASE = F
ABC XYZ PQR ABC_CHECK
XYZ_CHECK PQR_CHECK
---- ---- ----
---------------- -------------- -----------------
10 20 30
F T F
40 50 60 F
F F
70 80 90 F
F T
Can I get an immediate reply ?
- Thanks
Antony.
From: ila...@gmail.com [mailto:ila...@gmail.com] On Behalf Of ilai
Sent: Wednesday, May 30, 2012 10:35 PM
To: Akkara, Antony (GE Energy, Non-GE)
Cc: r-help@r-project.org
Subject: Re: [R] Separate Array Variable Content
If you haven't done so you *must* read an Introduction to R. The only
reason this is a problem is Myarray is a character string, not a
function or expression to be evaluated. I think this will get you what
you want though:
# In the future use the output of ?dput to provide data to this list
(MyMatrix <- structure(c(10, 20, 30, 40, 50, 60, 70, 80, 90), .Dim =
c(3L,
3L), .Dimnames = list(NULL, c("ABC", "PQR", "XYZ"))))
# DO NOT use rich font !!! in plain text it adds '*' to the bold names
which is more than annoying...
MyArray <- c("ABC>50","PQR<50","ABC<30 & XYZ<40")
# finally the answer:
sapply(MyArray,function(x) eval(parse(text=x),as.data.frame(MyMatrix)))
HTH
On Wed, May 30, 2012 at 12:44 AM, Rantony <antony.akk...@ge.com> wrote:
Hi,
I am new in R,
i have a matrix like this
MyMatrix <-
*ABC PQR XYZ*
10 20 30
40 50 60
70 80 90
And, i have an array containing some conditions like this,
MyArray <- c("*ABC*>50","*PQR*<50","*ABC*<30 &* XYZ*<40")
"ABC>50"
"PQR<50"
"ABC<30 & XYZ<40"
My purpose what is, i need to check this conditions in *MyArray* with
*MyMatrix* value for particular column
How it is possible ?
- Thanks
Antony.
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