Dear group,
Here is my function:
#return the daily PL for day y
PLDaily-function(x,y)
{
#find elements in my directory with LSCPos in the name, keep the numeric
part in the name and
#create a list
l-gsub(\\D,,dir()[grep(LSCPos,dir())])
#select in the list the desired elements
On 2010-05-26 1:17, arnaud Gaboury wrote:
Dear group,
Here is my function:
#return the daily PL for day y
PLDaily-function(x,y)
{
#find elements in my directory with LSCPos in the name, keep the numeric
part in the name and
#create a list
l-gsub(\\D,,dir()[grep(LSCPos,dir())])
#select
Hi,
The first problem (I think) is your for loop: for (i in sel), what is
sel?!
Then you might want to write position[i] and trade[i] (I don't think
that position and trade are functions, or they are in a package you
don't specify). Depending on the class of position and trade, you might
Dear group,
Here is my environment after I run a function, myfun()
myfun()
ls()
[1] allconavprix16 DailyPL100416 DailyPL100419
DailyPL100420 l llmyl PL
PLdaily PLglobal PLmonthly
[13] Pos100415 Pos100416 Pos100419
My guess is that either ls(), called inside grep() or mget() is
looking in an environment you do not want it to. When you create a
function, it has it's own environment. If you want the dataframes to
be created inside the function call (which is what I think you were
doing before), you should
Thank you so much. You are totally right.
-Original Message-
From: Joshua Wiley [mailto:jwiley.ps...@gmail.com]
Sent: Monday, May 24, 2010 6:33 PM
To: arnaud Gaboury
Cc: r-help@r-project.org
Subject: Re: [R] writing function
My guess is that either ls(), called inside grep
-help@r-project.org
Subject: Re: [R] writing function
My guess is that either ls(), called inside grep() or mget() is
looking in an environment you do not want it to. When you create a
function, it has it's own environment. If you want the dataframes to
be created inside the function call
Dear group,
I am trying to write functions, but as a beginner, everything is not so
obvious.
Let's say I want the results in a list of elemts like this :
tot1, tot2, etc
Here is a function:
toto -
function(x,y)
{
for(i in x:y){
paste(c(tot,i),collapse=)-(i*2)
}
}
If I type this :
Try this:
paste(tot, 4:16, sep = )
Or:
func - function(x,y)
{
paste(tot, x:y, sep = )
}
func(4,16)
Contact
Details:---
Contact me: tal.gal...@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) |
Hi,
the problem is not about the environment, but about the
paste(c(tot, i), collapse = )
which is not recognized as an object.
Maybe assign() could do the trick
You could also do it this way (though it's not exactly what you want,
but it might be better):
toto - function(x,y){
tot -
Hi Tal,
You're probably right, but I think it's never a waste to get diverse solutions
:)
Cheers,
Ivan
Le 20 mai 2010 à 19:26, Tal Galili a écrit :
Hi Ivan,
I am not sure if the poster (arnaud) intended for a list() object (although
that's what he wrote, I suspect he intended for a
Hello,
I am guessing by my environment you mean the global environment (where
you normally assign things from the console). It also looks like you
would like the results of your function call to be a set of new
objects created. If that is what you are looking for, try:
toto - function(x,y) {
## Create a function to assign a series of values to a list of objects
## The assign function can only assign one value (could be a vector) to a
name
## Set the environment to be global, otherwise the objects can't be used
outside the function
## List objects that have been created
toto -
===
myf=function(ds=1){
x=rnorm(10)
y=rnorm(10)
{ #start of if
if (ds==1)
{
list(x,y)
}
else (ds==2)
{
plot(x,y)
}
} # end of if
} # end of function
===
Hi All,
the problem i am having here is,
that I want to be able to control the display,
lf
-help@r-project.org
Subject: [R] writing function ( 'plot' and 'if') problem
===
myf=function(ds=1){
x=rnorm(10)
y=rnorm(10)
{ #start of if
if (ds==1)
{
list(x,y)
}
else (ds==2)
{
plot(x,y)
}
} # end of if
} # end of function
what i am triyng to do is
when ds=1
give me a list
ds=2
plot
Thanks
casper
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Sent from the R help mailing list archive at Nabble.com.
On Apr 13, 2010, at 5:41 PM, casperyc wrote:
===
myf=function(ds=1){
x=rnorm(10)
y=rnorm(10)
{ #start of if
if (ds==1)
{
list(x,y)
}
else (ds==2)
?if
That seems odd. I would expect this function to return TRUE or FAKSE
rather than proceeding to a plot function.
On Apr 13, 2010, at 5:41 PM, casperyc wrote:
===
myf=function(ds=1){
x=rnorm(10)
y=rnorm(10)
{ #start of if
if (ds==1)
{
list(x,y)
}
else (ds==2)
{
plot(x,y)
}
} # end of if
} # end of function
===
Hi All,
the problem i am having here is,
The spurious condition (ds==2) is actually interpreted as the action taken
by the else statement.
Then the braced plot statement is seen as the next statement after the
conclusion of the
if () {} else ()
statement.
[[alternative HTML version deleted]]
On Apr 13, 2010, at 10:58 PM, RICHARD M. HEIBERGER wrote:
The spurious condition (ds==2) is actually interpreted as the action
taken by the else statement.
Then the braced plot statement is seen as the next statement after
the conclusion of the
if () {} else ()
statement.
I did
Hi,
I have written a function,
( or 2 functions)
becasue there are only tiny difference,
One of them has lines
==
#c2 (price.mat) call option price
c2=c(
max(S.mat[1,3]-K,0),
max(S.mat[2,3]-K,0),
max(S.mat[3,3]-K,0)
)
(some lines)
list(
Stock Value=round(S.mat,dp),
Hi,
===
x=rnorm(20)
y=rnorm(20)
t=lm(y~x)
plot(t)
===
you will get
click or hit enter to next page...
how do I write a function to archieve this ?
say
plot(x,y)
then pause, wait
plot(y,x)
Thanks!
casper
--
View this message in context:
?devAskNewPage
On Sat, Apr 10, 2010 at 7:49 PM, casperyc caspe...@hotmail.co.uk wrote:
Hi,
===
x=rnorm(20)
y=rnorm(20)
t=lm(y~x)
plot(t)
===
you will get
click or hit enter to next page...
how do I write a function to archieve this ?
say
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