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- \font Helvetica 15
- \title File Format...
- \bold
- File Format...
- \bold
-
- Here is the file format recognized by JcGraph: In this example, we will
- create a graph of 3 lines by 3 columns.
- It is important that it should not produce a file containing special control
- characters that would not be recognized by JcGraph (stay ASCII international).
- After your text editor is loaded, start by entering "1002" (without the
- delimiters). This sequence help JcGraph identify the file type, to be sure
- that it is really compatible. Note that all value should be comma-separated.
- Next, enter the number of column that your file will contain, "3" in our
- example. Do the same thing for the number of line. Follows a number which
- will set the space between each cotation in the scale on the side of the
- graph; for example, if your data range from 0 to 100 and you specify 25,
- the cotation scale will output "0","25","50","75","100". This number use
- the same value unit as the data itself.
- The next number (floating point), is the one by which every cotation
- value will be multiplied ; for example, if you enter "1.24", each cotation
- of the scale will be muliplied by 1.24. This permits to access floating
- point value without changing the data itself. Note that only 3 decimals
- positions will be kept for now and that a value of 0 will result in an
- integer form (ie no decimal point).
- The next step is the value entry. As we chose to produce a 3 by 3 data
- file, there will be 9 consecutive values (they can be on the same line but
- should always be comma-separated).
- The 3 next value are text strings that will identify your columns (they
- should always be filled). Same procedure for each line. Note that the
- orientation is always the same. Rows represents variation and lines are
- diferent products type.
-
- Here is the resulting data file from the example:
- 1002,
- 3,3,10,0,
- 10,20,30,
- 50,60,60,
- 15,32,17,
- Jan,Fev,Mar,
- Gaz,Oil,Fer,
-