Hi friends,
I need suggestions/directions on how to producing a waterfall plot for present
extend of change in tumour size for a set of respondents in a study. Example of
use of waterfall plot is in the following slides presented at ASCO 2007 by Axel
Grothey. Link is
http://media.asco.org/player/default.aspx?LectureID=AG265&conferenceFolder=GI2007&SessionFolder=Poster&slideonly=yes&TrackID=N929&LectureTitle=Waterfall%20plots%20provide%20detailed%20information%20on%20magnitude%20of%20response%20to%20conventional%20chemotherapy%20in%20colorectal%20cancer%3a%20Lessons%20learned%20from%20N9741.&Key=vm_45_3_26_265&SpeakerName=%3b%20Presenter%3a%20Axel%20Grothey%2c%20MD&mediaURL=%2fmedia&ServerName=media.asco.org&max=12&ext=jpg&useASX=false&playtype=&playtype=&playtype=,
The link is pretty long but it takes you right to the presentation.
A Smile costs Nothing
But Rewards Everything
Happiness is not perfected until it is shared
-Jane Porter
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Philip Twumasi-Ankrah schrieb:> Hi friends, > I need suggestions/directions on how to producing a waterfall plot for present extend of change in tumour size for a set of respondents in a study. Example of use of waterfall plot is in the following slides presented at ASCO 2007 by Axel Grothey. Link is > > http://media.asco.org/player/default.aspx?LectureID=AG265&conferenceFolder=GI2007&SessionFolder=Poster&slideonly=yes&TrackID=N929&LectureTitle=Waterfall%20plots%20provide%20detailed%20information%20on%20magnitude%20of%20response%20to%20conventional%20chemotherapy%20in%20colorectal%20cancer%3a%20Lessons%20learned%20from%20N9741.&Key=vm_45_3_26_265&SpeakerName=%3b%20Presenter%3a%20Axel%20Grothey%2c%20MD&mediaURL=%2fmedia&ServerName=media.asco.org&max=12&ext=jpg&useASX=false&playtype=&playtype=&playtype=, > > The link is pretty long but it takes you right to the presentation.Hi Phillip, is this a "waterfall plot": ## a few data x <- 0:99 y <- sort(rnorm(100), decreasing=TRUE) # the plot plot(y, type="n") polygon(c(min(x), x, max(x), 0), c(0, y, 0, 0), col="green") Thomas P.
Philip Twumasi-Ankrah wrote:> Hi friends, > I need suggestions/directions on how to producing a waterfall plot for present extend of change in tumour size for a set of respondents in a study. Example of use of waterfall plot is in the following slides presented at ASCO 2007 by Axel Grothey.Hi Philip, The stackpoly function in the plotrix package almost does what you want. I think I can knock it into a waterfall plot function without too much trouble. I'll get back to you by tomorrow evening (in Australia). Jim
Here is one possibility:
# random data
set.seed(1)
growth <- sort(runif(215, -100, 100), decreasing = TRUE)
col <- factor(1 + (growth < -25) + (growth < 25),
lab = c("black", "grey50", "grey80"))
barplot(growth, col = levels(col)[col], ylab = "% Growth",
main = "Random Data", xlab = "", space = 0, border = 0,
ylim = c(-100, 100))
legend("topright", legend = c("> 25%", "25% > .
> -25%", "< 25%"),
cex = 0.8, bty = "n", fill = levels(col))
legend("bottomleft", "Random data with style of: Ratain et al,
JCO,
2006, Fig 2", cex = 0.6, bty = "n")
On Fri, Oct 31, 2008 at 12:25 PM, Philip Twumasi-Ankrah
<nana_kwadwo_derkyi at yahoo.com> wrote:> Hi friends,
> I need suggestions/directions on how to producing a waterfall plot for
present extend of change in tumour size for a set of respondents in a study.
Example of use of waterfall plot is in the following slides presented at ASCO
2007 by Axel Grothey. Link is
>
>
http://media.asco.org/player/default.aspx?LectureID=AG265&conferenceFolder=GI2007&SessionFolder=Poster&slideonly=yes&TrackID=N929&LectureTitle=Waterfall%20plots%20provide%20detailed%20information%20on%20magnitude%20of%20response%20to%20conventional%20chemotherapy%20in%20colorectal%20cancer%3a%20Lessons%20learned%20from%20N9741.&Key=vm_45_3_26_265&SpeakerName=%3b%20Presenter%3a%20Axel%20Grothey%2c%20MD&mediaURL=%2fmedia&ServerName=media.asco.org&max=12&ext=jpg&useASX=false&playtype=&playtype=&playtype=,
>
> The link is pretty long but it takes you right to the presentation.
>
>
>
> A Smile costs Nothing
> But Rewards Everything
>
> Happiness is not perfected until it is shared
> -Jane Porter
>
>
>
>
> [[alternative HTML version deleted]]
>
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
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> and provide commented, minimal, self-contained, reproducible code.
>
>
On Fri, Oct 31, 2008 at 11:25 AM, Philip Twumasi-Ankrah <nana_kwadwo_derkyi at yahoo.com> wrote:> Hi friends, > I need suggestions/directions on how to producing a waterfall plot for present extend of change in tumour size for a set of respondents in a study. Example of use of waterfall plot is in the following slides presented at ASCO 2007 by Axel Grothey. Link is > > http://media.asco.org/player/default.aspx?LectureID=AG265&conferenceFolder=GI2007&SessionFolder=Poster&slideonly=yes&TrackID=N929&LectureTitle=Waterfall%20plots%20provide%20detailed%20information%20on%20magnitude%20of%20response%20to%20conventional%20chemotherapy%20in%20colorectal%20cancer%3a%20Lessons%20learned%20from%20N9741.&Key=vm_45_3_26_265&SpeakerName=%3b%20Presenter%3a%20Axel%20Grothey%2c%20MD&mediaURL=%2fmedia&ServerName=media.asco.org&max=12&ext=jpg&useASX=false&playtype=&playtype=&playtype=, > > The link is pretty long but it takes you right to the presentation.Is this really an effective means of describing the distribution of percent change in tumour size? Wouldn't a histogram display the distribution more effectively? Hadley -- http://had.co.nz/