similar to: Does logistic regression require the independence of samples?

Hello, Gurus: I tried to test if the sample mean of a dataset is zero. The data has 1500 numbers with a lot of zeros and some small positive numbers. The data range on [0,1] but the distribution is unknown. It is zero inflated anyway. I tried to use the Wilcoxon Signed Ranks test. But I read from this website that it does assume the population pdf is symmetric.

Hello! I am trying to use lm to do a simple regression but on a batch of different files. Each file has different column names. I know the first column is the dependent variable and all the rest are explanatory variables. The column names are in the first line of the file. But it seems lm() requires I know the variable names in advance? Is there a way to dynamically read in variable names

I have a dataset of 10000 records which I want to use to compare two prediction models. I split the records into test dataset (size = ntest) and training dataset (size = ntrain). Then I run the two models. Now I want to shuffle the data and rerun the models. I want many shuffles. I know that the following command sample ((1:10000), ntrain) can pick ntrain numbers from 1 to 10000. Then I just

Hi, Anybody used treenet here? I downloaded a demo but don't know how to start with. Does R has something like treenet? Thanks, [[alternative HTML version deleted]]

Hi, Sorry I have to bother you a question. I have a file with each line like this: 6.5500000000000000e+004 2.8235000000000001e+000 3.2000000000000000e+001 1.1580000000000000e+003 2.4400000000000000e+002 5.9800000000000000e+002 2.2700000000000000e+002 3.9030000000000001e+001 -1.2137000000000000e+002 However, I use read.table, it cannot read it correctly. It read in 18 variables instead of

Hi all, I try to boot an msdos system using pxelinux and memdisk on my PC engines Wrap-2.c card and I have problems with it This is what I see: PXELINUX 3.11 Debian-2006-03-16 Copyright (C) 1994-2005 H. Peter A boot: msdos Loading memdisk.... Loading images/msdos/msd622bd.dosim......................... Ready. dp83815: Setting full-duplex based on negotiated link capability. MEMDISK 3.11

Hello, I have a simple (?) simulation problem. I'm doing a simulation with logistic model and I want to reapet it 600 times. The simulation looks like this: z <- 0 x <- 0 y <- 0 aps <- 0 tiss <- 0 for (i in 1:500){ z[i] <- rbinom(1, 1, .6) x[i] <- rbinom(1, 1, .95) y[i] <- z[i]*x[i] if (y[i]==1) aps[i] <- rnorm(1,mean=13.4, sd=7.09) else aps[i] <-

Hello. I'm using as.ffdf(mydataframe) to create ffdf objects inside an lapply loop and returning that. I then use crbind to combine the lapply results into allData. So...simplified flow looks like this. res <- lapply(1:nchunks, function(n) { blah blah with nth chunk mydataframe <- data.frame(blah blah) dat <-

Hi, I have data on individuals (B) who participated in events (A). If ALL participants in an event are a subset of the participants in another event I would like to remove the smaller event and if the participants in one event are exactly similar to the participants in another event I would like to remove one of the events (I don't care which one). The following example does that however it

I'm running samba 3.0.23c on aix 5.3 TL4. I'm using Tivoli HSM 5.3.4.0 on a JFS2 filesystem. Samba compiled fine, and I set "dmapi support = yes" in smb.conf, but samba wouldn't recognize offline files ("migrated files" in tsm terminology). After setting a higher log level I think I've tracked down the problem. The patch is at the bottom of this email.

I know that I can record the contents of a call by calling Monitor() or MixMonitor() from the dialplan just before invoking Dial(). I have a potential customer who wants only the first minute of each call recorded (for identification purposes, without the storage overhead of keeping the complete call). Can anyone here think of the easiest way to do this? The only possibilities I can think of

Happy New Year, r-helpers! I am using lowess to smooth a scatter plot, xx<-lowess(xinput,f=.04) #defaults for other args followed by turnpoints(xx$y) #defaults for other args I plot the smoothed result as well as turnpoints (using yy$tppos) on top of raw data plot. Result is exactly as expected, graphically. For another purpose, I calcuate the difference between turnpoints (representing

Dear all, I want to make call through socket i have set code given below: #!/usr/bin/perl -w use IO::Socket::INET; sub asterisk_command () { # my $command=$_[0]; my $ami=IO::Socket::INET->new(PeerAddr=>'127.0.0.1',PeerPort=>5038,Proto=>'tcp') or die "failed to connect to AMI!"; print $ami "Action: Login\r\nUsername:

Hello, I have built a domain with samba4.8.4. I can join windows to the domain in normal way successfully. But today when I tried to offline join the domain, log.samba showed that the password was wrong. But in fact the password was correct. And after several time's trying, the machine account got locked. Offline domain join is available in samba4.5.16. So is there any default setting get

Greetings from Rio de Janeiro, Brazil. I am looking for advice / references on binary logistic regression with weighted least squares (using lrm & weights), on the following context: 1) unbalanced sample (n0=10000, n1=700); 2) sampling weights used to rebalance the sample (w0=1, w1=14.29); e 3) after modelling, adjust the intercept in order to reflect the expected % of 1?s in the population

Hi there, I'm using the latest Thunderbird & Dovecot. I'm trying to setup either pop3s or imaps. The plain versions of the protocols both work fine for me, even with the TLS option selected in Thunderbird. But when I try to use the ssl versions, my client does not negotiate - it just time's out. I have as much logging enabled as possible and the only thing that shows up

Dear R-help, I am trying to make logistic regression analysis using the R function "glm", with the parameter family set to binomial, in order to use a logistic regression model. I have 70 samples. The dependent variables has two levels (0 and 1) and one of the independent variables has too two levels (0 and 1). The variables associate in the way shown in the table:

How do I construct a figure showing predicted value plots for the dependent variable as a function of each explanatory variable (separately) using the results of a logistic regression? It would also be helpful to know how to show uncertainty in the prediction (95% CI or SE). Thanks- This email has been processed by SmoothZap - www.smoothwall.net

Hi, I am new to R. Anyone can explain the following from R-help or anyone can direct me how to calculate odds ratio from logistic model in R. Thank you very much. Guoya Stefano <stecalza at tiscalinet.it <https://stat.ethz.ch/mailman/listinfo/r-help> > writes: >Hi all. > >A simple question. >Is there a function to compute the Odds Ratio and its confidence intervall,

a closer look to the help on predict.glm will reveal that the function accepts a 'type' argument. In you case 'type = response' will give you the results in probabilities (that it seems to be what you are looking for). There also is an example on use of the 'type' argument at the end of the page. Stefano -----Messaggio originale----- Da: r-help-bounces at r-project.org