Difference between revisions of "Time series"

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Line 33: Line 33:
 
</jsxgraph>
 
</jsxgraph>
 
====JavaScript code====
 
====JavaScript code====
<source lang="xml">
+
<source lang="javascript">
<jsxgraph width="700" height="400">
+
brd = JXG.JSXGraph.initBoard('jxgbox', {axis:true, boundingbox: [-6, 150, 64, -50]});
    brd = JXG.JSXGraph.initBoard('jxgbox', {axis:true, boundingbox: [-6, 150, 64, -50]});
 
  
    var inputString = document.getElementById('inputData').value;        // Read the data as string
+
var inputString = document.getElementById('inputData').value;        // Read the data as string
    inputString = inputString.replace(/^\s+/, '').replace(/\s+$/, '');  // Remove leading and trailing whitespace
+
inputString = inputString.replace(/^\s+/, '').replace(/\s+$/, '');  // Remove leading and trailing whitespace
    var lines=inputString.split('\n');                                  // Split into lines
+
var lines=inputString.split('\n');                                  // Split into lines
    var x = [];
+
var x = [];
    var y = [];
+
var y = [];
    var startDate;
+
var startDate;
    for (var i=0;i<lines.length;i++) {  
+
for (var i=0;i<lines.length;i++) {  
        var c = lines[i].split(' : ');
+
    var c = lines[i].split(' : ');
        var d = c[0].split('-');
+
    var d = c[0].split('-');
        var v = parseFloat(c[1].replace(/,+/,'.'));                      // Change 126,5 to 126.5
+
    var v = parseFloat(c[1].replace(/,+/,'.'));                      // Change 126,5 to 126.5
        var date = new Date(d[0],d[1],d[2]);                            // Split the date into Year, Month, Day
+
    var date = new Date(d[0],d[1],d[2]);                            // Split the date into Year, Month, Day
        if (i==0) { startDate = new Date(d[0],d[1],d[2]); }              // Keep the first date in memory
+
    if (i==0) { startDate = new Date(d[0],d[1],d[2]); }              // Keep the first date in memory
        x[i] = (date.getTime()-startDate.getTime())/ ( 1000.0*60.0*60.0*24.0 );  // The x coordinate of a value is the number of days from the first entry
+
    x[i] = (date.getTime()-startDate.getTime())/ ( 1000.0*60.0*60.0*24.0 );  // The x coordinate of a value is the number of days from the first entry
        y[i] = v;
+
    y[i] = v;
       
+
     
    }
+
}
    var plot = brd.create('curve', [x,y], {strokeColor:'red'});             
+
var plot = brd.create('curve', [x,y], {strokeColor:'red'});             
</jsxgraph>
 
 
</source>
 
</source>
  
Line 102: Line 100:
 
</jsxgraph>
 
</jsxgraph>
 
====JavaScript code====
 
====JavaScript code====
<source lang="xml">
+
<source lang="javascript">
<jsxgraph width="700" height="400" box="jxgbox2">
+
brd2 = JXG.JSXGraph.initBoard('jxgbox2', {boundingbox:[-5,130,60,80]});
    brd2 = JXG.JSXGraph.initBoard('jxgbox2', {boundingbox:[-5,130,60,80]});
+
var xax = brd2.create('axis',[[0,85],[1,85]]);
    var xax = brd2.create('axis',[[0,85],[1,85]]);
+
var yax = brd2.create('axis',[[0,0],[0,1]]);
    var yax = brd2.create('axis',[[0,0],[0,1]]);
 
  
    inputString = document.getElementById('inputData').value;        // Read the data as string
+
inputString = document.getElementById('inputData').value;        // Read the data as string
    inputString = inputString.replace(/^\s+/, '').replace(/\s+$/, '');  // Remove leading and trailing whitespace
+
inputString = inputString.replace(/^\s+/, '').replace(/\s+$/, '');  // Remove leading and trailing whitespace
    var lines=inputString.split('\n');                                  // Split into lines
+
var lines=inputString.split('\n');                                  // Split into lines
    var p, x1, y1;
+
var p, x1, y1;
    var x = [];
+
var x = [];
    var y = [];
+
var y = [];
    var points = [];
+
var points = [];
  
    points.push(brd2.create('point', [0,85], {visible:false, name:'', fixed:true}));  
+
points.push(brd2.create('point', [0,85], {visible:false, name:'', fixed:true}));  
    var startDate;
+
var startDate;
    for (var i=0;i<lines.length;i++) {  
+
for (var i=0;i<lines.length;i++) {  
        var c = lines[i].split(' : ');
+
    var c = lines[i].split(' : ');
        var d = c[0].split('-');
+
    var d = c[0].split('-');
        var v = parseFloat(c[1].replace(/,+/,'.'));                      // Change 126,5 to 126.5
+
    var v = parseFloat(c[1].replace(/,+/,'.'));                      // Change 126,5 to 126.5
        var date = new Date(d[0],d[1],d[2]);                            // Split the date into Year, Month, Day
+
    var date = new Date(d[0],d[1],d[2]);                            // Split the date into Year, Month, Day
        if (i==0) { startDate = new Date(d[0],d[1],d[2]); }              // Keep the first date in memory
+
    if (i==0) { startDate = new Date(d[0],d[1],d[2]); }              // Keep the first date in memory
        x1 = (date.getTime()-startDate.getTime())/ ( 1000.0*60.0*60.0*24.0 );  // The x coordinate of a value is the number of days from the first entry
+
    x1 = (date.getTime()-startDate.getTime())/ ( 1000.0*60.0*60.0*24.0 );  // The x coordinate of a value is the number of days from the first entry
        y1 = v;
+
    y1 = v;
        p = brd2.create('point', [x1,y1],  
+
    p = brd2.create('point', [x1,y1],  
                  {strokeWidth:2, strokeColor:'#ffffff',  
+
              {strokeWidth:2, strokeColor:'#ffffff',  
                    highlightStrokeColor:'#0077cc', fillColor:'#0077cc',   
+
                highlightStrokeColor:'#0077cc', fillColor:'#0077cc',   
                    highlightFillColor:'#0077cc', size:4, name:'', fixed:true});
+
                highlightFillColor:'#0077cc', size:4, name:'', fixed:true});
        points.push(p);
+
    points.push(p);
        x.push(x1);
+
    x.push(x1);
        y.push(y1);
+
    y.push(y1);
       
+
   
    }
+
}
    points.push(brd2.create('point', [x1,85], {visible:false, name:'', fixed:true}));  
+
points.push(brd2.create('point', [x1,85], {visible:false, name:'', fixed:true}));  
 
   
 
   
    // Filled area. We need two additional points [start,0] and [end,0]
+
// Filled area. We need two additional points [start,0] and [end,0]
    brd2.create('polygon',points, {withLines:false,fillColor:'#e6f2fa',withLabel:false});
+
brd2.create('polygon',points, {withLines:false,fillColor:'#e6f2fa',withLabel:false});
  
    // Curve:
+
// Curve:
    brd2.create('curve', [x,y],  
+
brd2.create('curve', [x,y],  
                {strokeWidth:3, strokeColor:'#0077cc',  
+
            {strokeWidth:3, strokeColor:'#0077cc',  
                  highlightStrokeColor:'#0077cc'}
+
            highlightStrokeColor:'#0077cc'}
              );  
+
          );  
</jsxgraph>
 
 
</source>
 
</source>
  
 
[[Category:Examples]]
 
[[Category:Examples]]

Latest revision as of 09:35, 9 June 2011

Input data

Simple style

JavaScript code

brd = JXG.JSXGraph.initBoard('jxgbox', {axis:true, boundingbox: [-6, 150, 64, -50]});

var inputString = document.getElementById('inputData').value;        // Read the data as string
inputString = inputString.replace(/^\s+/, '').replace(/\s+$/, '');   // Remove leading and trailing whitespace
var lines=inputString.split('\n');                                   // Split into lines
var x = [];
var y = [];
var startDate;
for (var i=0;i<lines.length;i++) { 
    var c = lines[i].split(' : ');
    var d = c[0].split('-');
    var v = parseFloat(c[1].replace(/,+/,'.'));                      // Change 126,5 to 126.5
    var date = new Date(d[0],d[1],d[2]);                             // Split the date into Year, Month, Day
    if (i==0) { startDate = new Date(d[0],d[1],d[2]); }              // Keep the first date in memory
    x[i] = (date.getTime()-startDate.getTime())/ ( 1000.0*60.0*60.0*24.0 );  // The x coordinate of a value is the number of days from the first entry
    y[i] = v;
       
}
var plot = brd.create('curve', [x,y], {strokeColor:'red'});

Time series - Google style

JavaScript code

brd2 = JXG.JSXGraph.initBoard('jxgbox2', {boundingbox:[-5,130,60,80]});
var xax = brd2.create('axis',[[0,85],[1,85]]);
var yax = brd2.create('axis',[[0,0],[0,1]]);

inputString = document.getElementById('inputData').value;        // Read the data as string
inputString = inputString.replace(/^\s+/, '').replace(/\s+$/, '');   // Remove leading and trailing whitespace
var lines=inputString.split('\n');                                   // Split into lines
var p, x1, y1;
var x = [];
var y = [];
var points = [];

points.push(brd2.create('point', [0,85], {visible:false, name:'', fixed:true})); 
var startDate;
for (var i=0;i<lines.length;i++) { 
    var c = lines[i].split(' : ');
    var d = c[0].split('-');
    var v = parseFloat(c[1].replace(/,+/,'.'));                      // Change 126,5 to 126.5
    var date = new Date(d[0],d[1],d[2]);                             // Split the date into Year, Month, Day
    if (i==0) { startDate = new Date(d[0],d[1],d[2]); }              // Keep the first date in memory
    x1 = (date.getTime()-startDate.getTime())/ ( 1000.0*60.0*60.0*24.0 );  // The x coordinate of a value is the number of days from the first entry
    y1 = v;
    p = brd2.create('point', [x1,y1], 
               {strokeWidth:2, strokeColor:'#ffffff', 
                highlightStrokeColor:'#0077cc', fillColor:'#0077cc',  
                highlightFillColor:'#0077cc', size:4, name:'', fixed:true});
    points.push(p);
    x.push(x1);
    y.push(y1);
     
}
points.push(brd2.create('point', [x1,85], {visible:false, name:'', fixed:true})); 
 
// Filled area. We need two additional points [start,0] and [end,0]
brd2.create('polygon',points, {withLines:false,fillColor:'#e6f2fa',withLabel:false});

// Curve:
brd2.create('curve', [x,y], 
             {strokeWidth:3, strokeColor:'#0077cc', 
             highlightStrokeColor:'#0077cc'}
           );