Re: [R] Producing a table with mean values

2012-09-09 Thread John Kane
: smartpink...@yahoo.com Sent: Sat, 8 Sep 2012 11:14:11 -0700 (PDT) To: jrkrid...@inbox.com Subject: Re: [R] Producing a table with mean values Hi John, I am getting error messages with your solution. tabx -  ddply(nn, .(Seamount, variable),  summarize, mean = mean(value), sd = sd(value

Re: [R] Producing a table with mean values

2012-09-08 Thread John Kane
John Kane Kingston ON Canada -Original Message- From: tsonne...@gmail.com Sent: Fri, 7 Sep 2012 22:49:55 +0200 To: r-help@r-project.org Subject: [R] Producing a table with mean values Hi All, I have a data set wit three size classes (pico, nano and micro) and 12 different sites

Re: [R] Producing a table with mean values

2012-09-08 Thread arun
@r-project.org Cc: Sent: Saturday, September 8, 2012 1:19 PM Subject: Re: [R] Producing a table with mean values x  -  Seamount    Pico    Nano  Micro    Total_Ch Off_Mount1 0.0691 0.24200 0.00100  0.31210 Off_Mount1 0.0938 0.00521 0.02060  0.11961 Off_Mount1 0.1130 0.2 0.06620  0.37920

[R] Producing a table with mean values

2012-09-07 Thread Tinus Sonnekus
Hi All, I have a data set wit three size classes (pico, nano and micro) and 12 different sites (Seamounts). I want to produce a table with the mean and standard deviation values for each site. Seamount PicoNano MicroTotal_Ch 1 Off_Mount 1 0.0691 0.24200 0.00100 0.31210 2

Re: [R] Producing a table with mean values

2012-09-07 Thread David Winsemius
On Sep 7, 2012, at 1:49 PM, Tinus Sonnekus wrote: Hi All, I have a data set wit three size classes (pico, nano and micro) and 12 different sites (Seamounts). I want to produce a table with the mean and standard deviation values for each site. Seamount PicoNano Micro

Re: [R] Producing a table with mean values

2012-09-07 Thread Rui Barradas
Hello, Try the following. agg1 - aggregate(cbind(Pico, Nano, Micro) ~ Seamount, data = SChla, mean) agg2 - aggregate(cbind(Pico, Nano, Micro) ~ Seamount, data = SChla, sd) names(agg1)[-1] - paste(u, names(agg1)[-1], sep = .) names(agg2)[-1] - paste(sd, names(agg2)[-1], sep = .) merge(agg1,

Re: [R] Producing a table with mean values

2012-09-07 Thread Duncan Murdoch
On 12-09-07 4:49 PM, Tinus Sonnekus wrote: Hi All, I have a data set wit three size classes (pico, nano and micro) and 12 different sites (Seamounts). I want to produce a table with the mean and standard deviation values for each site. Seamount PicoNano MicroTotal_Ch 1

Re: [R] Producing a table with mean values

2012-09-07 Thread arun
-project.org Cc: Sent: Friday, September 7, 2012 4:49 PM Subject: [R] Producing a table with mean values Hi All, I have a data set wit three size classes (pico, nano and micro) and 12 different sites (Seamounts). I want to produce a table with the mean and standard deviation values for each site