similar to: @oldbid = 0 why?

Displaying 20 results from an estimated 2000 matches similar to: "@oldbid = 0 why?"

2006 Jul 02
2
nil.- what the heck...
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 =
2010 Oct 04
3
Loop too slow for Bid calc - BUT cannot figure out how to do with matrix
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
2004 Feb 19
1
reshape direction=wide
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
2006 Oct 28
1
really strange problem - has to be logic but i can't find it
would someone be kind enough to paste the code below into an R session ( ir you can paste it into a file and just source it ) and take a look at it ? I must be doing something wrong but i can't find it. I start out with a zoo object that has 100 elements in it. then, i only want to keep the rows in which the bid and the ask are both grester than zero. ( maybe my logic is wrong there ? ).
2006 Nov 17
2
Data table in C
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"
2006 Jul 03
0
Check if row already exists?
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"
2012 Jul 09
1
Using the effects package
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
2012 Mar 25
2
Weird POSIXct behaviour
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....
2005 Jun 25
2
observing a habtm association
Is there some way to observe when an association is added in a habtm relationship? I know I could turn the relationship into a model, but I don''t want to give up using :include in my finds... joshua
2012 Aug 08
1
Calculating percentages across multiple columns
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
2012 Jul 05
2
Plotting the probability curve from a logit model with 10 predictors
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
2007 May 15
4
Feasibility Request
I have a ton of Nortel MICS/CICS phone systems and am looking for an easy way to integrate them. Two questions arise: 1. Is it feasible to use asterisk as a Man in the Middle for a T1 PRI system? The idea is to intercept outbound calls from the Nortel PBX and redirect them via VoIP to another asterisk box at another branch transparently(thus saving the LD cost). Otherwise I'd pass
2011 May 11
1
Problems connecting to Virtualbox hypervisor using libvirt java binding
I am trying to connect to the virtualbox hypervisor through libvirt java binding. I am on Ubuntu 10.04 and I have installed libvirt-0.85, libvirt-java-0.4.6 and virtualbox-ose-dkms. I have configured libvirt project and its java binding at Eclipse and the default test of the binding runs properly. When I try to run a simple test in java with the connection: conn = new
2006 Nov 21
1
Is there any way to know when a field is blank
I have many text files in the format below and in certain rare instances such as below there can be nothing in one of the fields so a double comma is written but I won't know this because I am reading in many,many files sequentially. # TEXT FILE 2004-02-10 00:01:31.00000,,105.60000000 2004-02-10 00:01:32.00001,,105.60000000 2004-02-10 00:01:45.00000,,105.60000000 2004-02-10
2006 Oct 28
1
update on my weird problem
as jim pointed out ( i think we were figuring this out simultaneously. thanks a lot jim ), it looks it does have something to do with the fact that it's a zoo object because below i consider two cases. in the first case, fxdatab is a zoo object and i get the length of temp to be 1. in the second case, fxdatac is a matrix and the results in temp are correct. gabor : i really hate to bother
2006 Jul 01
3
Where to solicit bids on RoR project?
Where is the best place to solicit bids on a mid-size web app? (budget ~$15,000) What is the appropriate protocol for posting RoR RFPs? Thanks! Taylor -- Posted via http://www.ruby-forum.com/.
2017 Dec 01
2
Using Scalar Evolution to Identify Expressions Evolving in terms of Loop induction variables
Hi, I am using Scalar Evolution to extract access expressions (for load and store instructions) in terms of the loop induction variables. I observe that the Scalar Evolution analysis is returning more expressions than I expect - including ones that are not defined in terms of the loop induction variable. For instance in the following code: for(unsigned long int bid = 0; bid < no_of_queries;
2010 Mar 08
2
Data.frame issue (pls help)
Hi: I want to obtain a particular value from a data.frame. Following is my dataframe: > Quotes BID ASK Name CT2 GOVT 99.92969 99.9375 CT2 TUM0 COMDTY 108.53125 108.5469 TUM0 CT5 GOVT 100.10156 100.1094 GT5 FVM0 COMDTY 115.56250 115.5703 FVM0 TYM0 COMDTY 116.93750 116.9531 TYM0 If I try to run: QuoteTUM0BID = Quotes[Quotes$Name %in%
2018 Mar 05
0
Interpret List Label as Date from Quantmod getOptionChain
On 5 March 2018 at 03:13, Sparks, John wrote: | library(quantmod) | #in fairness, I did not include this last time and my example was therefore not reproducible. Apologies to Bert and everyone else #for not following the posting guidelines. | aapl_total<-getOptionChain("AAPL", NULL)> | | How could I then get the subset of the entire list which only has expiry dates in 2019, or
2012 Sep 15
4
how to view only readings of a selected data from a column while the other columns remain
Hi Friends I am new here and have a problem Year Market Winner BID 1 1990 ABC Apple 0.1260 2 1990 ABC Apple 0.1395 3 1990 EFG Pear 0.1350 4 1991 EFG Apple 0.1113 5 1991 EFG Orange 0.1094 For each year and separately for the two