Candlestick related Problem! Please help

Discussion about JFreeChart related to stockmarket charts.

Candlestick related Problem! Please help

Postby Ken1984 » Sat Mar 14, 2009 12:43 pm

hello everyone, i got a project that will be due next week and i still have some problems regarding the display of the dates foe the candlestick chart. I have a .txt file while i read in all the highs, lows, open, close, volume and the respective dates. However, the code given by JFreeChart uses something like a manual input for every single day which i have already replace by my codes below:

public static OHLCDataset createDataset() {

int j = 245;
Date[] date = new Date[j];
double[] high = new double[j];
double[] low = new double[j];
double[] open = new double[j];
double[] close = new double[j];
double[] volume = new double[j];
int[] actualdate = new int[j];

int i =0;
int mnth = 9;

try {
File f = new File("data.txt");
Scanner input = new Scanner(f);

while (input.hasNextLine()) {

high[i] = input.nextDouble();
low[i] = input.nextDouble();
open[i] = input.nextDouble();
close[i] = input.nextDouble();
volume[i] = input.nextDouble();
actualdate[i] = input.nextInt();
date[i] = DateUtilities.createDate(2007, mnth, 3+i, 12, 0);


catch (IOException ex) {

return new DefaultHighLowDataset("Candlestick", date, high, low, open,
close, volume);


As we can see from the above code, the dates add on everyday, without taking into consideration of the weekends. How is it possible to plot the candlesticks with respect to my dates? (which are stored under actualdates[i]) Please help, any kind soul!! thanks thanks..really appreciated for any help
Posts: 2
Joined: Sat Mar 14, 2009 12:34 pm

Re: Candlestick related Problem! Please help

Postby skunk » Sat Mar 14, 2009 2:27 pm

To remove the weekends you will need to call this method on the DateAxis
Code: Select all
public void setTimeline(Timeline timeline)

You will probably need (at least) this static method defined in org.jfree.chart.axis.SegmentedTimeline
Code: Select all
public static SegmentedTimeline newMondayThroughFridayTimeline()
Posts: 1087
Joined: Thu Jun 02, 2005 10:14 pm
Location: Brisbane, Australia

Re: Candlestick related Problem! Please help

Postby Ken1984 » Mon Mar 16, 2009 3:28 am

hey skunk, thanks for ur reply. But i dun really know how to do what u have said cos i am very new in programming, is it possible for you to in cooperate what you said into my codes? maybe tell when where i should call and where i should include the lines? thanks man, i owe you one.


Posts: 2
Joined: Sat Mar 14, 2009 12:34 pm

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