[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 31/09/02, : valeur spécifiée pour le paramètre graphique font incorrect what's the value that should i give to the parameter font ? -- View this message in context: http://www.nabble.com/minimizing-title%27s-police-tp17870753p17870753.html Sent from the R help mailing list archive at Nabble.com. __ R-help@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.
[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: http://www.nabble.com/changing-the-police-of-my-graph%27s-title-tp17849886p17849886.html Sent from the R help mailing list archive at Nabble.com. __ R-help@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.
[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-help@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.
[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 result.but i'm afread of getting false result,knowen that a call of such function require a vector of data x and a factor g . g is omitted when x is a list of vector. is the call that i do true? is a data frame in my case considered like a list of vector? -- View this message in context: http://www.nabble.com/bartlett-test-tp17687757p17687757.html Sent from the R help mailing list archive at Nabble.com. __ R-help@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.
[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 valeur par défaut when i checked the help i have understood that in g i should specified my différent samples in the case that xx is not a list.So i have tried to convert mode's xx in the list by: bartlett.test(list(xx)) this message appears: Erreur dans bartlett.test.default(list(xx)) : 'x' must be a list with at least 2 elements what should i do? and if the solution is to use a data frame how can i add the 92 columns'names to such data.frame? because the use of the function names(data.frame)-list(... and entering 92 words it seems painfull. is there any one who can help me now? please answer me as soon as possible. -- View this message in context: http://www.nabble.com/bartlett.test%28%29-tp17665173p17665173.html Sent from the R help mailing list archive at Nabble.com. __ R-help@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.
[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: http://www.nabble.com/lm%28%29-function-tp17546079p17546079.html Sent from the R help mailing list archive at Nabble.com. __ R-help@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.
[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: http://www.nabble.com/how-can-i-sort-a-column-of-data.frame---tp17324725p17324725.html Sent from the R help mailing list archive at Nabble.com. __ R-help@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.
[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: http://www.nabble.com/i-want-to-export-a-data.frame-to-file.xls-tp17326119p17326119.html Sent from the R help mailing list archive at Nabble.com. __ R-help@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.
[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 help mailing list archive at Nabble.com. __ R-help@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.
[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 archive at Nabble.com. __ R-help@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.
[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 please alert me , and if it is not what should do then? :handshake: -- View this message in context: http://www.nabble.com/%281-alpha%29th-percentile-tp17273198p17273198.html Sent from the R help mailing list archive at Nabble.com. __ R-help@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.
[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 context: http://www.nabble.com/is-there-any-graphic-function-tp17240811p17240811.html Sent from the R help mailing list archive at Nabble.com. __ R-help@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.
