[R] change color scheme in mvpart

2012-04-23 Thread leanne heisler

Hello everyone, I am currently using the mvpart package and would like to 
change the color scheme it uses, and was hoping someone could help me out. All 
of the papers I have found have used a grayscale but I can't seem to figure out 
how they did that! Currently, mvpart plots barplots in a repeating sequence of 
3 shades of blue. So if you have 6 response variables the same shade of blue is 
used to represent two different response variables. I would like to use 
grayscale and a different shade of gray for each response variable (I have 7). 
However, the color is more important so if I can only use 3 shades of gray 
thats fine. Thank you!!

---

Leanne Heisler

Graduate Student

Department of Biology

University of Regina
  
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[R] change color scheme in mvpart

2012-04-23 Thread leanne heisler

 From: dwinsem...@comcast.net
 To: leanneheis...@hotmail.com
 Subject: Re: [R] change color scheme in mvpart
 Date: Mon, 23 Apr 2012 19:20:06 -0400

 The fact that you are posting in HTML indicates that a) you have
 either not read the Posting Guide or b) do not know enough about your
 mailer to adhere to its advice or c) perhaps are just headstrong and
 do not mind annoying the people who think it is a good idea.

 Perhaps you also have decided not to follow its advice and post
 reproducible code? As they say ... Yer call, mate:

 http://www.youtube.com/watch?v=pKBzZIhHTtA

Sorry.


Again,


I am currently using the mvpart package and would like to change the color 
scheme it uses, and was hoping someone could help me out. All of the papers I 
have found have used a grayscale but I can't seem to figure out how they did 
that! Currently, mvpart plots barplots in a repeating sequence of 3 shades of 
blue. So if you have 6 response variables the same shade of blue is used to 
represent two different response variables. I would like to use grayscale and a 
different shade of gray for each response variable (I have 7). However, the 
color is more important so if I can only use 3 shades of gray thats fine.

As for reproducible code:

using libraries ade4, vegan, gclus, cluster, RColorBrewer, labdsv, mvpart, 
MVPARTwrap

spe.mvpart - mvpart(data.matrix(spe) ~ ., env, cp=0, xv1se, xval=10, 
xvmult=100, uniform=TRUE)

I didn't include my data but if you need it, I will email you a subset.








---

Leanne Heisler

Graduate Student

Department of Biology

University of Regina  
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[R] geoXY

2011-10-17 Thread leanne heisler





Hi Everyone,
 
I am new to R Language and was wondering if someone could help me convert my 
latitude-longitude coordinates to cartesian coordiantes using geoXY() from SoDA 
package? I have been uploading my coordinates from a text file into R (they 
originate as a dataframe) and them converting them to a matrix using the 
data.matrix() function. But I think I'm running into trouble when I try to use 
the geoXY() function with the matrix data. This is what I've tried so far, 
attached is the text file I've been using. It would be great if someone could 
tell me what I'm doing wrong so I know for future reference.
 
xy - read.table(SMSPA.txt)
 head(xy)
   XY
   V1 V2
1X  Y
2 49.02988   -99.3662
3 49.36558 -101.12703
4 49.64091  -99.65275
5 49.37323 -101.11609
6 49.36558 -101.12703
 data.matrix(xy)
 V1   V2
   [1,] 1164 1168
   [2,]   27 1166
   [3,]  2842
   [4,]  338 1167
   [5,]  2851
   [6,]  2842
library(SoDA)
 geoXY(xy@latitude, xy@longitude, unit=1000)
Error in geoXY(xy@latitude, xy@longitude, unit = 1000) : 
  trying to get slot latitude from an object of a basic class (matrix) with 
no slots
 geoXY(V1@latitude, V2@longitude, unit=1000)
Error in geoXY(V1@latitude, V2@longitude, unit = 1000) : 
  object 'V1' not found
 geoXY(xy)
Error in min(longitude, na.rm = TRUE) : 'longitude' is missing Thanks!
---

Leanne Heisler

Graduate Student

Department of Biology

University of Regina


  
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.