Displaying 12 results from an estimated 12 matches for "birdfire94".
2012 Dec 19
4
How to convert xts data into list
Hello,
How can I convert Close colume of the below xts time series data into a list of Close values ?
I'd like to plot Close values as a list.
> head(zc)
Close
(10/15/12 09:00:00) 252.40
(10/15/12 09:01:00) 253.10
(10/15/12 09:02:00) 253.15
(10/15/12 09:03:00) 253.30
(10/15/12 09:04:00) 253.25
(10/15/12 09:05:00) 253.45
I tried the below command to plot it.
2012 Oct 15
1
trouble with extracting Date string from my data.
Hello,
I have trouble with extracting Date string from my each row data.
The date format I use is as the follows:
----------------------------------------------------------------------------
-----------
Index,Open,High,Low,Close # header
2011-11-01 9:00:00 ,248.50,248.95,248.20,248.70 ...
....
----------------------------------------------------------------------------
-----------
When I read
2012 Nov 25
1
I'd like to know more efficient method to verify the pre-packaged codes
Hello,
I want to add some new functionalities in the package 'quantmod '.
So I download source code and am managed to build it.
I found that modifying code and check if it works by repeating the following steps:
1) r CMD check quantmod
2) r CMD build quantmod
3) r CMD INSTALL quantmod_0.3-17.tar.gz
4) launch R gui
5) library('quantmod')
6) run my script
Let me know if there
2012 Dec 27
1
Regarding multiple axes in plots..
Hello,
I'd like to draw 2 plots in one graph.
Here is my code:
plot(data_min1$macd,main="1 min MACD",type="l")
lines(data_min1$macdsig,col="red")
par(new=T)
plot(data_min1$macdhist,type="h",main="")
axis(4)
par(new=F)
It seems it works.
But left axes of two graphs are over-drawn.
Could you let me know how to fix it ?
2012 Dec 27
1
Help in using col in plot()..
Hello,
I have problem with using color.
plot(data_min1$macd,col='black',main="1 min MACD",type="l")
lines(data_min1$macdsig,col="red")
par(new=T)
plot(data_min1$macdhist,col=data_min3$histcol,type="h",main="")
axis(4,col='black')
par(new=F)
When I remove ",col=data_min3$histcol" in the 2nd plot()
2012 Dec 18
1
How to draw frequency domain plot with xts time series data
Hello,
I'd like to convert the below time-series data with fft or wavelet related function and plot it.
Could you let me know
1. How to convert xts data frame format to list format ?
2. How to plot fft or wavelet diagram ?
Here is the data :
> class(zc)
[1] "xts" "zoo"
> str(zc)
An ‘xts’ object from (10/15/12 09:00:00) to (10/15/12 15:15:00)
2013 Feb 04
1
Help on conditional selection of data.frame data...
Hello,
I have trouble with using data.frame data.
1. I loaded data using the following:
ff <- read.table("E:/R/VM/matrix.txt", header=T)
The data I used is attached.
I want to use at least 2 conditions for selecting of data. But I failed.
It works. ->
fff <- ff[ff$HG == "GUEST",]
ffff <- fff[fff$WR == "READ",]
But it
2012 Nov 27
2
Books for fully understanding internal logics on some packages(quantmod, xts, zoo and chron)
Hello,
I'm very interested in using financial time series data, but I'm a beginner of R programming.
I'd like to fully understand internal logics on several time-series related packages such as quantmod, xts, zoo, chron, etc.
So, I read some books, 'R Cookbook' and 'Art of R Programming' and another simple tutorials.
But I still can't understand grammars of the
2012 Dec 02
2
How to calculate mean of every nth time series data with zoo or xts ?
Hello,
I have 1-minute time series stock data and I'd like to calculate mean of every n-th candle data of m-days.
result = c(mean of 1th data, mean of 2nd data, ...)
mean of 1th data = (1th data of 2012-1-1 + 1th data of 2012-1-2 + 1th data of 2012-1-3) / 3
mean of 2nd data = (2nd data of 2012-1-1 + 2nd data of 2012-1-2 + 2nd data of 2012-1-3) / 3
...
Could you let me know the fastest
2012 Nov 27
2
Some questions about chron package..
Hello,
I have questions while reviewing "chron" package(e.g.,chron.R).
1. What is the differences between 3 kinds of function definition ?
1) "name" <- function(...
2) 'name' <- function(...
3) name <- function(...
Do you know Why author used various kinds of definitions ?
Is there no functional differences between them ?
2. I
2012 Oct 14
0
Asking help about drawing and saving candle chart automatically....
Hello,
I have trouble with saving and showing candlestick graph.
I want to draw daily 1-minute candle chart per each day and save it
repeatedly.
The data I saved and is used in my code is as the following format:
-----------------------------------------------------
Index,Open,High,Low,Close # header
2011-11-01 9:00:00 ,248.50,248.95,248.20,248.70
...
2011-11-01 15:15:00
2012 Nov 29
1
How to use doSMP(revoIPC) with R 2.15.x version
Hello,
I'd like to use package 'doSMP'. But I can only found source codes in the CRAN.
I tried to build source code using 'r CMD build doSMP' in the source directory,
the following error is shown:
ERROR: dependencies 'foreach', 'iterators', 'revoIPC' are not available for pack
age 'doSMP'
So, i tried to install dependency packages. But I