[R] minimizing title's police

in order to minimize the police of the title of my graph i tried to use: title(nombre de fleurs données journellement par 6 cereus peruvianus du 1/07/02 au 31/09/02,font=0) but this message appears: Erreur dans title(nombre de fleurs données journellement par 6 cereus peruvianus de 1/07/02 au

[R] changing the police of my graph's title

hi; i want to change the police of the title of my graph.i tried to use font.title and cex.title but there was no changing in characters fount. is there any one who could help me? -- View this message in context:

[R] multinormality

is there any function under R that allows me to test the normality of my 92 sumples? -- View this message in context: http://www.nabble.com/multinormality-tp17717230p17717230.html Sent from the R help mailing list archive at Nabble.com. __

[R] bartlett-test

i a have transformed my data to data frame named df with only column names(no rownames).each column represnt one sample with 3 observations (in deed nrow(df)=3, and ncol(df)=92).in order to check homoskedasticity of variance of my 92 samples i do: bartlett.test(df) it work and give me a

[R] bartlett.test()

i'm trying to test the homogeneity of variance of 92 samples each one contains 3 observations. to use bartlett.test function i have created a (3,92) matrix (named xx): bartlett.test(xx) this message appears: Erreur dans bartlett.test.default(xx) : l'argument g est manquant, avec aucune

[R] lm() function

hi, my linear model is y=c+a*x1+b*x2 i tried to found a, c, b by the use of: mymodel-lm(y~1+x1+x2) where y, x1, x2 are 3 vectors with the same length the result is a=NA.so i want to know where is the problem. -- View this message in context:

[R] how can i sort a column of data.frame ?

i have a data.frame with several columns that i want to sort one of them (one column) by descending order in such way that this sorting out recover all colums. what should i do? -- View this message in context:

[R] i want to export a data.frame to file.xls

in order to export a data.frame to sheet.xls i try: write(df,file=file_name.xls) but when i open it a message appears: impossible to oppen this file. her format is unvalid knowen that i work with excel_2007 what is the solution ? -- View this message in context:

[R] how can i superpose 2 graphs

Hio i tried to do this by: par(new=TRUE) but the result is one picture but y-axis has 2 différent graduations.how can i correct this?( i want one graduation on y axis). -- View this message in context: http://www.nabble.com/how-can-i-superpose-2--graphs-tp17305355p17305355.html Sent from the

[R] two curves at one graph

i try to use par(new=TRUE) i get them at the same graph but the y_axis and x_axis are drowen with two unevenly graduations that graph become unreadable. -- View this message in context: http://www.nabble.com/two-curves-at-one-graph-tp17307590p17307590.html Sent from the R help mailing list

[R] (1-alpha)th percentile

hello; firstly, my gratitude to all who help me to find a function that allows me to add confidence interval to my graph. in order to calculate the (1-alpha)th percentile of for exemple an F(df1,df2) distribution i do like this: v-df(alpha,df1,df2) percentile-qf(v,df1,df2,alpha) if it is true

[R] is there any graphic function

hello: is there any graphic function under R that allow me to add an interval on the graphic's picture at any place i want. i mean by interval the symbol || showed verticaly and has as middle the point M with coordinates (yi,ti).please answer me as soon as possible. -- View this message in