Would it be possible to use this script with the prices.db file and get 
investments market value over time?

> On 25 Aug 2018, at 16:57, Richard Gott <[email protected]> wrote:
> 
> Hello all
> 
> I have trouble with the standard balance sheet output.  It's OK for me but my 
> committee is completely thrown by minus signs etc.  I have tried the various 
> ledger add-ons with no success (running Arch Linux (Manjaro) and Ubuntu 18).
> 
> So I decided to send all the data to R (https://cran.r-project.org/) which is 
> very stable, well suppoorted and flexible.
> 
> I doubt if this is of much interest but, just in case, here goes:
> 
> This is the R syntax for reading a balance sheet adn the raw ledger data.  
> The syntax shown will read the latest version of the data so it is always up 
> to date.
> 
> Balance sheet:
> 
> ------------------
> # Read ledger balance and create temp text file, check that its ok 
> -----------------------
>      system("ledger bal --flat --depth 4 > depth4.txt")
>      system("tail depth4.txt ")
> 
> # set nrows to miss out total line at bottom, add column names
>      bal <- read.table("depth4.txt", sep="", header=F, nrows=54)
>      colnames(bal) <- c("Amount","Account")
> 
> # remove £ adn force to numeric
>      bal$Amount <- as.numeric(gsub("£", "", bal$Amount))
>      str(bal)
> 
> # Income adn expenses separated out
>           Bal_income <- subset(bal, grepl("Income",Account))
>           Bal_expenses <- subset(bal, grepl("Expenses",Account))
> 
> # swap columns adn remove minus sign - Income only shown
>           Bal_income <- Bal_income[,c('Account', 'Amount')]
>           Bal_income$Amount <- - Bal_income$Amount
>           head(Bal_income)
> ---------------------
> 
>                                   Account  Amount
> 34                   Income:Bank_interest    2.33
> 35     Income:Concert_income:Other:Folder   20.00
> 36 Income:Concert_income:Other:Music_hire  701.50
> 37 Income:Concert_income:Other:Programmes  214.95
> 38  Income:Concert_income:Tickets:Advance 1068.00
> 39     Income:Concert_income:Tickets:Door  280.00
> 
> (this will align OK onteh screen and in a spreadheet)
> 
> I then send this directly to an excel sheet using the R package 'xlsx'.  jhis 
> allows you to create a sheet, and send the results to a specific cell start 
> position.  Cut and paste is ok as well.
> 
> The ledger raw data:
> 
> ----------------------------------------
> # load lubridate package to handle date format
> 
> library("lubridate")
> 
> # Read ledger files and create csv
> 
> system("echo Date,Code,Payee,Account,Currency,Amount,Status,Notes  >  
> ledger.csv")
> system("ledger main.ledger csv  -S date >> ledger.csv")
> 
> # Load into R
>      ledger <- read.csv("ledger.csv", header=T)
> # convert date format to ISO (optional)
> # convert others to more sensible format
> 
>     ledger$Date <- ymd(ledger$Date)
>      ledger$Date <- as.Date(ledger$Date)
>      ledger$Code <- as.character(ledger$Code)
>      ledger$Payee <- as.character(ledger$Payee)
>      ledger$Notes <- as.character(ledger$Notes)
> ------------------
> 
> You can now run, for eg, a simple bit of syntax to produce a graph of balance 
> for the year, or income , or whatever.  Plenty of other options avaialbe for 
> pie charts etc.
> 
> If you have been, thanks for reading.
> 
> Richard
> 
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