R help - Jun 2013 - LSD comparison

Dear Sir
 
I'm a student in the university and just start to use R for agricultural
research analysis.
I know my question is an old question, but I don't find any clear
explanation about  my problem via internet.
I'm sorry if my email is disturbing all of you.
 
I install R with version 3.0.1 and no problem with anova analysis, my problem is
I can't perfprm LSD comparison, it is appearing "Error: could not find
function "LSD.test"
I think I'm already installed "agricolae package" on my system. I
attach some picture as shown on my screen.
if possible please guide me  how to solve the problem. (how to check if
agricolae package is completely installed?)
 
Thanks you very much for reading

Hello,

After installing the package (just once) you have to load it in the R
session (every time you start a session that will use it.) You do this 
with the following command.

library(agricolae)  # load the package

Hope this helps,

Rui Barradas

Em 27-06-2013 11:17, bawonpon chonipat escreveu:
> Dear Sir
>
> I'm a student in the university and just start to use R for
agricultural research analysis.
> I know my question is an old question, but I don't find any clear
explanation about  my problem via internet.
> I'm sorry if my email is disturbing all of you.
>
> I install R with version 3.0.1 and no problem with anova analysis, my
problem is I can't perfprm LSD comparison, it is appearing "Error:
could not find function "LSD.test"
> I think I'm already installed "agricolae package" on my
system. I attach some picture as shown on my screen.
> if possible please guide me  how to solve the problem. (how to check if
agricolae package is completely installed?)
>
> Thanks you very much for reading
>
>   		 	   		
>
>
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

Hi,Without any reproducible example or code, it is difficult to understand the
problem.? Did you load the package?
Using the example in ?LSD.test()
library(agricolae)
data(sweetpotato)
????? model<-aov(yield~virus, data=sweetpotato)
????? out <- LSD.test(model,"virus", p.adj="bonferroni",
????? main="Yield of sweetpotato\ndealt with different virus")

Study: Yield of sweetpotato
dealt with different virus

LSD t Test for yield 
P value adjustment method: bonferroni 

Mean Square Error:? 22.48917 

virus,? means and individual ( 95 %) CI

????? yield? std.err r?????? LCL????? UCL Min. Max.
cc 24.40000 2.084067 3 19.594134 29.20587 21.7 28.5
fc 12.86667 1.246774 3? 9.991602 15.74173 10.6 14.9
ff 36.33333 4.233727 3 26.570341 46.09633 28.0 41.8
oo 36.90000 2.482606 3 31.175100 42.62490 32.1 40.4

alpha: 0.05 ; Df Error: 8
Critical Value of t: 3.478879 

Least Significant Difference 13.4704
Means with the same letter are not significantly different.

Groups, Treatments and means
a ??? ?oo ??? ?36.9 
a ??? ?ff ??? ?36.33 
ab ??? ?cc ??? ?24.4 
b ??? ?fc ??? ?12.87 

sessionInfo()
R version 3.0.1 (2013-05-16)
Platform: x86_64-unknown-linux-gnu (64-bit)

locale:
?[1] LC_CTYPE=en_CA.UTF-8?????? LC_NUMERIC=C????????????? 
?[3] LC_TIME=en_CA.UTF-8??????? LC_COLLATE=en_CA.UTF-8??? 
?[5] LC_MONETARY=en_CA.UTF-8??? LC_MESSAGES=en_CA.UTF-8?? 
?[7] LC_PAPER=C???????????????? LC_NAME=C???????????????? 
?[9] LC_ADDRESS=C?????????????? LC_TELEPHONE=C??????????? 
[11] LC_MEASUREMENT=en_CA.UTF-8 LC_IDENTIFICATION=C?????? 

attached base packages:
[1] stats???? graphics? grDevices utils???? datasets? methods?? base???? 

other attached packages:
[1] agricolae_1.1-4 stringr_0.6.2?? reshape2_1.2.2 

loaded via a namespace (and not attached):
[1] plyr_1.8??? tcltk_3.0.1 tools_3.0.1

A.K.


Dear Sir 
? 
I'm a student in the university and just start to use R for agricultural
research analysis.
I know my question is an old question, but I don't find any clear
explanation about ?my problem via internet.
I'm sorry if my email is disturbing all of you. 
? 
I install R with version 3.0.1 and no problem with anova analysis, 
my problem is I can't perfprm LSD comparison, it is appearing "Error: 
could not find function "LSD.test" 
I think I'm already installed "agricolae package" on my system. I
attach some picture as shown on my screen.
if possible please guide me ?how to solve the problem. (how to check if
agricolae package is completely installed?)
? 
Thanks you very much for reading