similar to: Memory game

Hi to all...i'm a new R'user and i have to solve some exercies so i ask to tou for an help... 1.) How i can demonstrate in R that the limit for x-->infinite of (1+1/x)^x is equal to "e"? 2.) if i have a vector of values how can i create a function that, applied to my vector, give me "median", "mean", "Var" and "length" togheter?

Hello everyone, i`m new here.. I just started with learning R language and i have hard "homework". I need to write function like sort().. Anyone know how to do it? Can u give me algorithm for sorting vector? x=c(1,2,-1,1,3,4) or something like that.. I`m sorry for my english.. -- View this message in context: http://n4.nabble.com/Help-me-with-writing-function-sort-tp1836063p1836063.html

I'm solving the following problem: Create a variable (column) in the ?wf? dataframe named ?Zone? that takes value of ?tropic? if Latitude is less than or equal to 30, or ?non-tropic? for Latitude greater than 30. Show you Zone variable. Latitude is a column of my dataframe. I don't know the sintaxis and the process to create the column. [[alternative HTML version deleted]]

Hi all, 3. The probabilities are 0.06, 0.21, 0.24, 0.18, 0.14, 0.10, 0.04, 0.02 and 0.01 that an airline will receive 0,1,2,3,4,5,6,7 or 8 complaints per day about its luggage.Find e(x) and e(x^2) Give the R commands you use and the two numerical values. Use the sample function to simulate complaints over 500 days. Give the R command you use and draw a barplot of the simulated data. Comment

I got a distribution function and a empirical distribution function. How do I make to Kolmogorov-Smirnov test in R. Lets call the empirical distribution function >Fn on [0,1] and the distribution function >F on [0,1] ks.test( ) thanks for the help -- View this message in context: http://www.nabble.com/Kolmogorov-Smirnov-test-tp23296096p23296096.html Sent

Dear Contributors I would like to perform this operation using a loop, instead of repeating the same operation many times. The numbers from 1 to 4 related to different groups that are in the database and for which I have the same data. x<-c(1,3,7) datiP1 <- datiP[datiP$city ==1,x]; datiP2 <- datiP[datiP$city ==2,x]; datiP3 <- datiP[datiP$city ==3,x] datiP4 <-

On Fri, 25 Aug 2023 22:17:05 +0530 ASHLIN VARKEY <ashlinvarkey at gmail.com> wrote: > Sir, Please note that r-help is a mailing list, not a knight! ?? > I want to solve the equation Q(u)=mean, where Q(u) represents the > quantile function. Here my Q(u)=(c*u^lamda1)/((1-u)^lamda2), which is > the quantile function of Davies (Power-pareto) distribution. Hence I > want to

a. Write a R function zerdiag.v1(m) using loop to output a square matrix whose diagonal elements are zero and the other elements are filled in by consecutive integers from 1 to m row-wise. For example, zerdiag.v1(6) = [0, 1, 2] [3, 0, 4] [5, 6, 0] This function should have error checking ability. If the input m cannot form a square matrix,

I have to answer the following question for a homework assignment. A researcher was interested in whether people taking part in sports at university made more money after graduating, taking into account the students' GPA. They sampled 200 alumni from a large university. The variables are: income (income 10 years after graduating), sports (1 if they did sports, 0 if they did not), and GPA (the

greetings has anyone here setup a CentOS box to use as a home or business gateway for children through young adults or otherwise? i realize this is a generalized question and that iptables and many other things exist that could be implemented. im looking for a way to give the youngster the benefit of the doubt and allow them to "obey God/parents" first before they have to be totally

Here is a first draft of a guide for posters to r-help and r-devel. Suggestions on how to improve any aspect of it are most welcome. Suggestions on ways to make it more concise are especially welcome. Comments on which parts you like or don't like are welcome. Rather than clutter up R-help with lots of small corrections etc, please send them to me, and I will try to incorporate and

What is the new way to check if a parent has child items? In rails 1.2.6 I did this: if @client.has_line_items? Client being the parent and line_items the children. Now that I have upgraded to rails 2.0.1 (on my way to current :-) ) I am getting this message: undefined method `has_line_items?'' for #<Client:0x7f3b093b01a0> How should I format the query now? Regards, Paul

Why is the width of an FXSplitter equal to 1 before the FXSplitter#create method is called? My splitter is configured to have LAYOUT_FILL_X, so wouldn''t its width be determined before its children were created? It''s not really a big deal, but I was configuring the split based on a preferences file during initialize, and couldn''t make it work properly. Doing it in

Hi, is this list only related to R issues or it has a broader context regarding questions and discussions about statistics. Is there any other email list or forum for that? For example, I have a question regarding variance. It is defined as: variance = sum(sq(Xi-mean)) / (N-1) and I never understood why not define it as variance = sum(absolute(Xi-mean) / (N-1) I read somewhere that this cannot

Hello all, Does a generator exist to generate the ActiveRecord model from the database? I wouldn''t mind if it generated parent-child relations always as has_many - belongs_to. The scenario in my case is a database of about 180 legacy tables, with a pattern that the foreign keys use (<parent table name>_OID). These I''d like to wrap in the model as easily as

I''m a ruby newbie and have what is probably a relatively simple problem I''m trying to solve. Say that I created a hash: TASKS = { "homework" => "Do Your Homework", "chores" => "Your Have Chores", "exercise" => "Don''t Forget to Exercise" } and then I had an Assignment model with: def

Hi All, I''m super a super ruby nuby, so bare with me. I am working on a small app that has a particular form that I am having a rough time figuring out the best to way to handle. Basically here it is, each school has one or more classrooms, and each classroom can have one or more teachers. Here''s what I am trying to do (edit a school): - click on a link to edit a School -

Dear everybody, In our game-theory lesson we have run several classroom-experiments where the students had to decide for a natural number between one and seven. I have troubles now to visualize the results: be a the vector of answers. hist(a) will not assume natural numbers as answers, but rational. It will make the brakes exactly at the natural numbers, which is difficult to interpret, as

Hi, I have a data with the forum a b c 8.9 0 0 7.4 1 0 4.2 0 1 2.3 1 1 Which are explanatory variables in this data? And also I want to fit logistic regression model with two explanatory variables? (I think that I should use glm, but how should I put these variables in glm)? Do I need also other functions, other than

Dear folks, Here goes my bandwidth manager: INTERNET | |eth0 202.14.41.1 BW.Manager | | | +----eth1----192.168.1.0/24 | +------eth2----192.168.2.0/24 Total incoming bandwidth to eth0 is 1024kbps should be shared to eth1 and eth2, which mean each get 512Kbps and burstable to 1024Kbps if other host is idle. My question is how do i apply HTB to these situation ? As far as i know eth1 and eth2