similar to: extending models with statistic capabilities

You can use htmlTreeParse and xpathApply from the XML library. something like: xpathApply( htmlTreeParse("http://blabla", useInt=T), "//td", function(x) xmlValue(x)) should do it. Gamma wrote: > > anyone care to explain how to read a html table, it's streaming data > (updated every second) and i am looking for a suitable function. > > The imported html

Hi, I''m don''t want to start another post about what''s the best IDE. Am just considering getting a licence for Rubymine which is 99$ I think. But I don''t know whether it''s really better than Netbeans. My focus is on BDD with cucumber, Rspec and Shoulda. Can anyone tell me his/her experience concering test support in those two IDE''s

hi, i'm trying to configure dovecot to create maildir directories of new users with specific permissions. i'm ending with this dovecot: auth: Debug: sql(blabla,::1,<HJ/.>): query: SELECT data_user.username, data_user.password, 500 AS userdb_uid, 500 AS userdb_gid, 500 as mail_access_groups, 750 as mode, '/var/mail/' AS userdb_home, concat('maildir:/var/mail/',

Okay I''ve been working on a little biding system. In my model I have class Item < ActiveRecord::Base has_many :bids def highest_bid @bid = 0 self.bids.each do |bid| if @bid == nil @bid = bid.max else if bid.max > @bid @oldbid,@bid = @bid,bid.max end end end if @oldbid == 0 "#{@bid} - #{@oldbid+1} = #{@bid -= @oldbid+1}" else dif =

Okay first off here''s the error: You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occured while evaluating nil.- Here''s the code in the model: def highest_bid @bid = nil @oldbid = 0 self.bids.each do |bid| if @bid == nil @bid = bid.max else if bid.max > @bid @oldbid,@bid =

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After getting one list done, I am now struggling to form a data frame in C. I tried to do a list of lists which gives me : $<NA> $<NA>[[1]] [1] "BID" $<NA>[[2]] [1] 0.6718 $<NA>[[3]] [1] 3e+06 $<NA> $<NA>[[1]] [1] "BID" $<NA>[[2]] [1] 0.6717 $<NA>[[3]] [1] 5e+06 $<NA> $<NA>[[1]] [1] "BID"

Hi, I am trying to create Bid/Ask for each second from a high volume stock and the only way I have been able to solve this is using loops to create the target matrix from the source tick data matrix. Looping is too slow and not practical to use on multiple stocks. For example: Bids Matrix (a real one is 400,000++ length): Bid Time 10.03 11:05:03.124 10.04 11:05:03.348 10.05

This could be really trivial, but I cannot find the right function to get the name of an object as a character. Assume we have a function like: getName <- function(obj) Now if we call the function like: getName(blabla) and 'blabla' is not a defined object, I want getName to return "blabla". In other word, if paste("blabla") returns "blabla" I

I've been looking into the effects package and it seems to be a great tool for plotting the probabilities of the response variable by the predictors. However, I'm wonder if I can use the effects package to plot the probabilities on the y axis and one predictor on the x axis, with the curve having the info for another predictor. So let's say our response variable is win, a binary

I have the following data and am trying to find the percentage of bid values purchased for that price. So let's say I have a bid of 5 and it's sold 2 times for $3 and $5. Since the original bid was $5, the percentage of times that that bid value results in a sold purchase AT that specific bid level was 1/3 because of the three time where the bid was three, it ended up being sold for $5

Hello I am reshaping a data.frame bids --> reshaped as shown below. I thought this should be possible with a single invocation of reshape, but the only way I came up with is reshaping subsets for each keyword and then joining them together. Does anyone have an idea how to solve this in a more elegant way? Efficiency is a concern as the datasets are very large. Is there a way to specify

Hi, How to order the levels os factor not by alphabetic order but by mean of Y. Somethink like this: I have this alphabetic order: > levels(pH) [1] "alto" "baixo" "medio" the order by mean os yvar is: > sort(tapply(Riqueza,pH,mean)) baixo medio alto 11.56667 20.00000 26.80000 How to make the levels of pH ordered by this mean to the result to

I''m working on a system that has a series od "bids" associated with "posts". Vurrently when a bid is placed I have it creating a new row each time in the "bids" table. The bids table has id, post_id, and user_id. The logic is to check to see if a bid already exists with a given post_id and user_id. If it does, then just update the "amount"

Friends I have an xts that I wish to access. Browse[2]> DATA.ba[[p]]["2012-03-20 00:59:57","bid"] bid 2012-03-20 00:59:57 1.4993 So far so good. Now putting the index into a variable: Browse[2]> Time [1] "2012-03-20 00:59:57 NZDT" Browse[2]> DATA.ba[[p]][Time, "bid"] bid Where has it gone? Looking closer....

Hi, is there a way to define more than one NDS ldap server in smb.conf? It seems that only the first ldap server is used and if unavailable none of the other backends are going to be tried. Samba then still tries to connect over and over to the unavailable eDirectory-Server. My passdb entry looks like this (it?s all in one line): passdb backend = NDS_ldapsam:ldaps://serverA.blabla.com:636

Hi guys, I've been using blocks for a while and found that current behavior is error prone. So I am going to propose to you the better one. Motivation: 1) The __weak variables in blocks are very common pattern. So having any implicit default behavior makes thing worse. 2) Some stupid mistakes like: __weak typeof (self) theSelf = self; ...^ { theSelf.blabla = .. .... [self blabla];

guestfish returns 0 if the commands completed without error, or 1 if there was an error. But the rule break when we use '-' prefix subcommands: ------------------------------------ $ guestfish <<\EOF > blabla > EOF blabla: unknown command $ echo $? 1 $ guestfish <<\EOF -blabla EOF blabla: unknown command $ echo $? 0 ------------------------------------ I think it should

I have a logit model with about 10 predictors and I am trying to plot the probability curve for the model. Y=1 = 1 / 1+e^-z where z=B0 + B1X1 + ... + BnXi If the model had only one predictor, I know to do something like below. mod1 = glm(factor(won) ~ as.numeric(bid), data=mydat, family=binomial(link="logit")) all.x <- expand.grid(won=unique(won), bid=unique(bid)) y.hat.new

Hi, in dialplan -Asterisk 16.2 from Debian Buster- we have  same = n,Dial(PJSIP/101&PJSIP/102&PJSIP/103,15,tT) If thew call is not answered after 20 seconds, we launch a new dial with same and/or other extensions  same = n,Dial(PJSIP/101&PJSIP/104&PJSIP/110,20,tT) Looking in CDR we have at the end of the call (here we called 3 extensions which where ringing, let say 110