search for: sampeling

Hi R user, Can we calculate sample size when only mean and SE are given? Let say one example, I have mean with SE is 0.54+-0.0517 (mean+-SE). Is there any way to find the samples (sample size n) in that condition in R? i think this question is not related to R, I hope you won't mind. Thanks [[alternative HTML version deleted]]

On 14/04/16 19:28, Marna Wagley wrote: > Hi R user, > Can we calculate sample size when only mean and SE are given? > Let say one example, I have mean with SE is 0.54+-0.0517 (mean+-SE). Is > there any way to find the samples (sample size n) in that condition in R? > > i think this question is not related to R, I hope you won't mind. You're correct, your question is

...lace = FALSE, prob = NULL) Error in `[.data.frame`(x, .Internal(sample(length(x), size, replace, : cannot take a sample larger than the population when 'replace = FALSE' As length(daf1) is 10, it thinks I'm taking 10000 samples from a size 10 population... Arghhh How do I go about sampeling from a data frame? :-( Martin

Hi, anyone knows how i can get the input from a mircophone as a byte-array stream in VC++ ?? So that i can encode it with speex an send it away. The second thing is, to decode the speex frame and play it on the speakers. It would be helpfull if you can give me a link to a site which explains this topic an include some littel code sampels. Thanks. Best regards Sören Krings mailto:spontexx@web.de

I tried to fit data with the following function: fit<-nls(y~ Is*(1-exp(-l*x))+Iph,start=list(Is=-2e-5,l=2.3,Iph=-0.3 ),control=list(maxiter=500,minFactor=1/10000,tol=10e-05),trace=TRUE) But I get only a singular Gradient warning... the data can by found attached(there are two sampels of data col 1/2 and 3/4). I tried to fix it by chanching the start parameters but that didn't solve the

Howdy, I just gem unpacked merb and have configured the sample_app to use an sqlite3 database. I see that the Rakefile has a task named "schema", but it points to /dist/schema/schema1.rb", which doesn''t exist. I copied /dist/schema/schema1.rb to /dist/schema/schema.rb then ran "rake schema". What''s the recommended way to create the database tables?

Hi, I am working with libspeex api. I would like compare the size of speex file encoded with libspeex and the size of speex file encoded with speexenc. For example, I encode with speexenc (narrowband, quality 1) a wav file of 1.43 MB (17 seconds) output a spx file weight 21KB, for other hand I encode with libspeex the same wav file with same characteristics in arm processor, pocket pc and the

Hi, I'm using the package quadprog to solve the following quadratic programming problem. I want to minimize the function (b_1-b_2)^2+(b_3-b_4)^2 by the following constraints b_i, i=1,...,4: b_1+b_3=1 b_2+b_4=1 0.1<=b_1<=0.2 0.2<=b_2<=0.4 0.8<=b_3<=0.9 0.6<=b_4<=0.8 In my opinion the solution should be b_1=b_2=0.2 und b_3=b_4=0.8. Unfortunately R doesn't find

\\Pettit Connect As: Password: On the server side, I didn't get far because the domain name come up NULL so it failed on that test. Below are two logs log98.txt and log2000.txt that show full debug info. I might just have a stupid configuration or installation mistakes. I am sure that my basic configuration must work since it is a very typical setup. Any help will be highly appreciated