similar to: Increase Number of Decimals

Hello R-Users, I am new to R and trying my best however I need help with this simple task. I have a dataset, YM1207. X.Symbol Date Time Exchange TickType ReferenceNumber Price Size 12491 3:YMZ7.EC 12/03/2007 08:32:50 EC B 85985770 13379 7 12492 3:YMZ7.EC 12/03/2007 08:32:50 EC A 85985771 13380 4 12493

Hi all, I''m working on a financial app, and have set up some columns in my tables as decimals with precision => 8 and scale => 2. My migration looks like: change_column :lineitems, :price, :decimal, :precision => 8, :scale => 2 change_column :payments, :amount, :decimal, :precision => 8, :scale => 2 I''ve run the migration and restarted the server. I

Rails3.1.3 I have db type, startp:integer I need to change it to float. More specifically, 1.2, 45.1, 143.8 ... I have two questions: 1. Is removing and adding the field through migration the only way? in other words, is there a single command to change the type? 2. Is there anyway to limit the decimal place to only one? 56.3, 34.2... are acceptable, but 23.112, 77.34, ... are

Maybe it''s all in my head, but I''m having the strangest little issue ever. My pricetags in my rails app are always whole numbers. Rails seems to completely ignore my decimal input. So as a consequence, 10.41 becomes 10.00, always. Here''s some worthwhile stuff: within my 004_create_products.rb file: :price, :decimal, :percision => 2, :default => 0 And calling

Try this: 0.7-0.3==0.4 (We get FALSE) 0.7-0.3<0.4 (We get TRUE) but 0.8-0.3==0.5 (TRUE) 0.8-0.3<0.5 (FALSE) Funny, he? There is a way around: round(0.7-0.3,1)==0.4 (TRUE) Obviously there is a problem with some combinations of decimal subtractions, that - we have the feeling - shouldt be solved. Best regards Sven & Wolfgang -- View this message in context:

Try this: 0.7-0.3==0.4 (We get FALSE) 0.7-0.3<0.4 (We get TRUE) but 0.8-0.3==0.5 (TRUE) 0.8-0.3<0.5 (FALSE) Funny, he? There is a way around: round(0.7-0.3,1)==0.4 (TRUE) Obviously there is a problem with some combinations of decimal subtractions, that - we have the feeling - shouldt be solved. Best regards Sven & Wolfgang -- View this message in context:

Now that Rails core converts a database''s decimal type into a Ruby BigDecimal type, is it ok to now store money information as a decimal in the database (instead of an integer)? Joe

Another newbie question: How do i convert a float to a string, rounded to a certain number of decimals? Thanks -- Posted via http://www.ruby-forum.com/.

Hi, I recently spent quite a bit of time trouble shooting a function that I had written only to discover that the problem I was having was with the comparison operator. I assumed that the following would return TRUE: > testMean <- 82.8 + 0.1 > testMean [1] 82.9 > testMean == 82.9 [1] FALSE Apparently this has to do with deciml places. Look: > newTest <- 82.0 > newTest [1]

All - How can I read in a column of alphanumeric values without including ".0" on the numeric values? Original column: TeamLeaderID 258 342 316 U8 331 279 D1 116 235 296 ... [truncated] leaders = read.xlsx2('FILE', sheetIndex = 1, header = T) Column after it's been read in: leaders$TeamLeaderID 258.0 342.0 316.0 U8 331.0 279.0 D1 116.0 235.0 296.0 ... [truncated] If I

Hello list, I'm just getting started with R, and I'm trying to determine how R treats large numbers that have decimals. Take the following two examples: > x <- c(999999999999999.9) > sprintf("%.5f",x) [1] "999999999999999.87000" > y <- c(9999999999999999.9) > sprintf("%.5f",y) [1] "10000000000000000.00000" I realize that I have

Hi, I'm trying to calculate some functions loop, unfortunately my data are decimal numbers that not allow me to get an accurate estimate. I do not want to use neither "round "nor "signif" but I would prefer to have all the information available, (the function loop is generic so you should adapt to all data, not just those in particular). The approximation error is

I have the following timeseries "tab" ===================================== > str(tab) mts [1:23, 1:2] 79.5 89.1 84.9 75.7 72.8 ... - attr(*, "dimnames")=List of 2 ..$ : NULL ..$ : chr [1:2] "Ipex...I" "Omel...E" - attr(*, "tsp")= num [1:3] 2006 2008 12 - attr(*, "class")= chr [1:2] "mts" "ts" > tab

I have "time estimated" and a "time spent" fields in my task form. In my tasks table I have the "time_estimated" and "time_spent" rows assigned as float types. I''ve also tried setting them to decimal (4,2) with no luck. When I submit the form the error reads "NoMethodError in TasksController#create" then "Undefined method

Hello everyone, does anybody know how to increase the decimal places that R uses to calculate something. I think that in default R uses 6 decimal places but I need 12. Thank you very much! Best regards, Maja! --

I am attempting to plot something called a (marginal) dot diagram which is a regular scatterplot with an extra set of plots in the margins along both the X and Y axes. I have looked everywhere I can think for information. Can anyone give me any suggestions? Is there a single command that generates it or do I have to generate a regular scatterplot then add the additional plots in the margins?

Ok, this is a silly question, but what does the jitter buffer do? I'm really new to audio, so please bear with me. From what I gather (primarily from the list archive), the jitter buffer is a wrapper around the Speex decoder. I give it the packets I receive, in whatever order I receive them, and then it gives me back a clean stream of audio samples. But what I don't entirely

Hi, I have a mysql schema with some decimal(20,20) fields. Now, I made a rake db_schema_dump for deployment of my applications on other machines. Rails created a schema.rb with the decimal fields as float. After a rake db_schema_import the fields are just float not decimal. How can I force rails to create decimal(20,20) columns instead of float? Thx. Marc -- Posted via

Dear all, I have some trouble with the number of decimals in R (currently R 2.9.0). For instance: > options()$digits [1] 3 let me hope that I will get three digits where useful when a number is printed. BUT: > 44.25+31.1+50 [1] 125 No way to get the right result 125.35 Can anybody tell me what's happens ? Patrick

Hi, I am sure there is a reason but ...... why larger decimal numbers get rounded to the nearest integer? Example: a <- 3308000.5 a [1] 3308001 I would like my numbers to be decimals .... since they do represent coordinates and i don't want them rounded .... how can i keep them as they are? Thanks, Monica _________________________________________________________________