I have a huge problem with charts. Im trying to show just a few json value in the google chart, but I always get errors.
From the JSON body I only need the 'purchases all' and the 'Date' from the last month for the Chart. All the examples I have seen, they already got a static self defined Jsonbody. I hope you can help me and tell me what im doing wrong :(.
This is my jsFile, with the API response:
request(requestApi, function (error, response, body) {
if (error) {
return res.reject(error);
}
var dataJson = JSON.parse(body);
google.charts.load('current', {packages: ['corechart', 'bar']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable(dataJson);
data.addRows([
[{v: dataJson[0].total_purchases.purchases_all,
f: dataJson[0].total_purchases.date }]
]);
var options = {
chart: {
title: 'chart '
},
hAxis: {
title: 'week'
},
vAxis: {
title: 'counts',
viewWindowMode: 'explicit',
viewWindow: {
max: 300,
min: 0
}
},
bars: 'vertical',
width: 600,
height: 500
};
var chart = new google.charts.Bar(document.getElementById('the_chart'));
chart.draw(data, google.charts.Bar.convertOptions(options));
}
The response from the API is this:
{
"total_purchases": [
{
"number": 0,
"purchases_website": 11,
"purchases_app": 10,
"purchases_all": 21,
"date": "2016-07-01"
},
{
"number": 3,
"purchases_website": 19,
"purchases_app": 32,
"purchases_all": 51,
"date": "2016-05-01"
},
{
"number": 1,
"purchases_website": 31,
"purchases_app": 34,
"purchases_all": 65,
"date": "2016-06-01"
},
{
"id": 2,
"purchases_website": 20,
"purchases_app": 12,
"purchases": 32,
"date": "2016-08-01"
}
]
}
When I console log the JSON.parse(body) I get this:
imageHERE
since the json is not in the format google expects,
load the data table manually
create blank data table
add columns
add rows with data from json
see following working snippet...
google.charts.load('current', {
callback: function () {
var dataJson = {"total_purchases": [
{
"number": 0,
"purchases_website": 11,
"purchases_app": 10,
"purchases_all": 21,
"date": "2016-07-01"
},
{
"number": 3,
"purchases_website": 19,
"purchases_app": 32,
"purchases_all": 51,
"date": "2016-05-01"
},
{
"number": 1,
"purchases_website": 31,
"purchases_app": 34,
"purchases_all": 65,
"date": "2016-06-01"
}
]};
// create blank data table
var data = new google.visualization.DataTable();
// add columns: Type Label
data.addColumn('string', 'date');
data.addColumn('number', 'website');
data.addColumn('number', 'app');
data.addColumn('number', 'all');
// add each row from json
dataJson.total_purchases.forEach(function (row) {
data.addRow([
row.date,
row.purchases_website,
row.purchases_app,
row.purchases_all
]);
});
// sort data table
data.sort([{column: 0}]);
var options = {
chart: {
title: 'chart '
},
hAxis: {
title: 'week'
},
vAxis: {
title: 'counts',
viewWindowMode: 'explicit',
viewWindow: {
max: 300,
min: 0
}
},
bars: 'vertical',
width: 600,
height: 500
};
var chart = new google.charts.Bar(document.getElementById('the_chart'));
chart.draw(data, google.charts.Bar.convertOptions(options));
},
packages: ['bar']
});
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="the_chart"></div>
notes:
the above uses a discrete axis (first column is type: 'string')
in order to use a continuous axis (type: 'datetime'),
you may want to change the format of the json "date" value,
from --> "2016-06-01"
to --> "06/01/2016"
when loaded in the data table,
the current format will be offset by the timezone and could show an incorrect date,
it may also cause the data points to not align correctly with gridlines
and if using type: 'datetime', first column will change to...
data.addColumn('datetime', 'date');
and the add row statement would be...
data.addRow([
new Date(row.date),
row.purchases_website,
row.purchases_app,
row.purchases_all
]);
recommend using core chart instead, there are several config options that don't work with material charts
Tracking Issue for Material Chart Feature Parity #2143
core --> google.visualization.ColumnChart -- using --> packages: ['corechart']
material --> google.charts.Bar -- using --> packages: ['bar']
there is an option to get core chart close to look & feel of material
theme: 'material'
Related
line graph
column graph
My graph keeps call Controller to get recent info in Database time by time.
There are two lines so I want to show the name of each lines(columns)
like red=counts of something // brown=counts of something else.
My other bar graph has line info with color, and column name(highligted).
How can I add that information??
My line graph codes,
o.data = new google.visualization.DataTable();
o.data.addColumn('string', 'time');
o.data.addColumn('number', o.name);
o.data.addColumn('number', o.name2);
o.data.addRow(['', 0, 0]);
I'm not sure if I understand you correctly, but according to the docs you have to create options object and coufigure your chart as you like, e.g. add a legend to your bars or lines.
Example from the google chart documentation:
google.charts.load("current", {packages:["corechart"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Genre', 'Fantasy & Sci Fi', 'Romance', 'Mystery/Crime', 'General',
'Western', 'Literature', { role: 'annotation' } ],
['2010', 10, 24, 20, 32, 18, 5, ''],
['2020', 16, 22, 23, 30, 16, 9, ''],
['2030', 28, 19, 29, 30, 12, 13, '']
]);
var options = {
width: 600,
height: 400,
legend: { position: 'top', maxLines: 3 },
bar: { groupWidth: '75%' },
isStacked: true,
};
var view = new google.visualization.DataView(data);
var chart = new google.visualization.BarChart(document.getElementById("barchart_values"));
chart.draw(view, options);
}
Fiddle: https://jsfiddle.net/b0jghv4z/
I have a google scatter chart that has some significant thresholds in it. How do I visualise them?
Do I push some extra ticks on chart axis? If so how do I add just one and how do I style it?
I am aiming for something like this.
I am using React Google charts
add another column, or series, with the same value for all rows...
this can be added using a data view with calculated columns,
see following working snippet...
google.charts.load('current', {
callback: drawChart,
packages:['corechart']
});
function drawChart() {
var data = google.visualization.arrayToDataTable([
['x', 'y0'],
[0, 165],
[1, 175],
[2, 185]
]);
var view = new google.visualization.DataView(data);
view.setColumns([0, 1,
{
calc: function () {
return 150;
},
label: 'min',
type: 'number'
},
{
calc: function () {
return 175;
},
label: 'avg',
type: 'number'
},
{
calc: function () {
return 200;
},
label: 'max',
type: 'number'
}
]);
var options = {
vAxis: {
viewWindow: {
min: 125,
max: 225
}
}
};
var chart = new google.visualization.LineChart(document.getElementById('chart'));
chart.draw(view, options);
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart"></div>
EDIT
here's another example...
add additional columns to the data table,
use getColumnRange for find the min and max x-axis values
google.charts.load('current', {
callback: drawChart,
packages:['corechart']
});
function drawChart() {
var data = google.visualization.arrayToDataTable([
['x', 'y0'],
[0, 165],
[1, 175],
[2, 185]
]);
var xAxisRange = data.getColumnRange(0);
data.addColumn({label: 'min', type: 'number'});
data.addColumn({label: 'avg', type: 'number'});
data.addColumn({label: 'max', type: 'number'});
data.addRows([
[xAxisRange.min, null, 150, 175, 200],
[xAxisRange.max, null, 150, 175, 200]
]);
var chart = new google.visualization.LineChart(document.getElementById('chart'));
chart.draw(data, {
series: {
1: {
color: 'cyan'
},
2: {
color: 'cyan'
},
3: {
color: 'cyan'
}
}
});
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart"></div>
I am struggling with google charts. I want bars to be displayed from bottom, rather than from top. Currently they are "hanging" like on the image below:
I don't see proper setting in docs, if it is there, please correct me. This is the code responsible for handling the display:
function parseInterval(value) {
var result = new Date(1,1,1);
result.setMilliseconds(value*1000);
return result;
}
(function($) {
$(document).ready(function(){
var loading = $('#loading');
$.getJSON("/api/v1/users", function(result) {
var dropdown = $("#user_id");
$.each(result, function(item) {
dropdown.append($("<option />").val(this.user_id).text(this.name));
});
dropdown.show();
loading.hide();
});
$('#user_id').change(function(){
var selected_user = $("#user_id").val();
var chart_div = $('#chart_div');
if(selected_user) {
loading.show();
chart_div.hide();
$.getJSON("/api/v1/mean_time_month/"+selected_user, function(result) {
$.each(result, function(index, value) {
value[1] = parseInterval(value[1]);
});
var data = new google.visualization.DataTable();
data.addColumn('string', 'Month');
data.addColumn('datetime', 'Mean time (h:m:s)');
data.addRows(result);
var options = {
hAxis: {
title: 'Month'
},
vAxis: {
title: 'Mean presence time',
minValue: new Date(1, 1, 1, 0, 0)
},
};
var formatter = new google.visualization.DateFormat({pattern: 'HH:mm:ss'});
formatter.format(data, 1);
chart_div.show();
loading.hide();
var chart = new google.visualization.ColumnChart(chart_div[0]);
chart.draw(data, options);
});
}
});
});
})(jQuery);
try using option vAxis.direction...
The direction in which the values along the vertical axis grow. Specify -1 to reverse the order of the values.
vAxis: {
direction: -1
}
see following working snippet...
google.charts.load('current', {
callback: drawChart,
packages:['corechart']
});
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Month');
data.addColumn('datetime', 'Mean time (h:m:s)');
data.addRows([
['Jan', new Date(1, 1, 1, 8, 16, 13)],
['Feb', new Date(1, 1, 1, 9, 24, 45)],
['Mar', new Date(1, 1, 1, 7, 36, 56)],
['Apr', new Date(1, 1, 1, 4, 20, 42)],
['May', new Date(1, 1, 1, 6, 51, 16)]
]);
var options = {
hAxis: {
title: 'Month'
},
vAxis: {
direction: -1,
title: 'Mean presence time',
minValue: new Date(1, 1, 1, 0, 0)
}
};
var formatter = new google.visualization.DateFormat({pattern: 'HH:mm:ss'});
formatter.format(data, 1);
var chart = new google.visualization.ColumnChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
but i think the real problem lies within the data
notice the y-axis values the chart displays in the example above,
the order doesn't seem right, as well as the range (10am - 12am)
it appears you're only interested in the time values
as such, recommend using 'timeofday' vs. 'datetime'
(see --> working with timeofday)
The DataTable 'timeofday' column data type takes an array of either 3 or 4 numbers, representing hours, minutes, seconds, and optionally milliseconds, respectively. Using timeofday is different than using date and datetime in that the values are not specific to a date, whereas date and datetime always specify a date.
For example, the time 8:30am would be: [8, 30, 0, 0], with the 4th value being optional ([8, 30, 0] would output the same 'timeofday' value).
see following working snippet for example using 'timeofday'...
google.charts.load('current', {
callback: drawChart,
packages:['corechart']
});
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Month');
data.addColumn('timeofday', 'Mean time (h:m:s)');
data.addRows([
['Jan', [8, 16, 13]],
['Feb', [9, 24, 45]],
['Mar', [7, 36, 56]],
['Apr', [4, 20, 42]],
['May', [6, 51, 16]]
]);
var options = {
hAxis: {
title: 'Month'
},
vAxis: {
title: 'Mean presence time',
minValue: [0, 0, 0]
}
};
var formatter = new google.visualization.DateFormat({pattern: 'HH:mm:ss'});
formatter.format(data, 1);
var chart = new google.visualization.ColumnChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
I wanted to make a google chart which shows the dual y axis , but both should represents the same bar.
See this fiddle
google.charts.load('current', {'packages':['bar']});
google.charts.setOnLoadCallback(drawStuff);
function drawStuff() {
var data = new google.visualization.arrayToDataTable([
['Car', 'Distance travelled'],
["mercedes", 44],
["lamborgh", 31],
["porsche", 12],
["aston martin", 10]
]);
var options = {
title: 'Car distance',
width: 500,
legend: { position: 'none' },
chart: { subtitle: 'money spent in distance travelled' },
axes: {
x: {
0: { side: 'top', label: 'Car stats'} // Top x-axis.
}
},
bar: { groupWidth: "20%" }
};
var chart = new google.charts.Bar(document.getElementById('top_x_div'));
// Convert the Classic options to Material options.
chart.draw(data, google.charts.Bar.convertOptions(options));
};
I have shown the Cars distance traveled , thats actually in kms, now i wanted to show the cars money spent in fuel
like a car traveled 1km and it spends $2 in fuel
now looking at the fiddle suppose we have mercedes car traveled 44km then it costs around $88 which should be depicted by the 2nd y-axis
How it can be done?
each series (y-value) in the chart represents a column in the data
"series 0" = column 1 in the data
"series 1" = column 2 in the data
then use the options to map each series to an axis...
series: {
0: { axis: 'distance' },
1: { axis: 'fuel' }
},
axes: {
y: {
distance: {label: 'Distance'},
fuel: {side: 'right', label: 'Fuel'}
}
}
see following working snippet...
google.charts.load('current', {
callback: drawChart,
packages:['bar']
});
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Car', 'Distance travelled', 'Fuel'],
['mercedes', 44, 88],
['lamborgh', 31, 62],
['porsche', 12, 24],
['aston martin', 10, 20]
]);
var options = {
title: 'Car distance',
height: 500,
legend: { position: 'none' },
chart: { subtitle: 'money spent in distance travelled' },
bar: { groupWidth: "20%" },
series: {
0: { axis: 'distance' },
1: { axis: 'fuel' }
},
axes: {
x: {
0: { side: 'top', label: 'Car stats'} // Top x-axis.
},
y: {
distance: {label: 'Distance'},
fuel: {side: 'right', label: 'Fuel'}
}
}
};
var chart = new google.charts.Bar(document.getElementById('chart_div'));
chart.draw(data, options);
};
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
EDIT
to remove the second bar but keep the axis requires a bit of manipulation
and use of options not available to material charts
see following working snippet using a core chart...
google.charts.load('current', {
callback: drawChart,
packages:['bar', 'corechart']
});
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Car', 'Distance travelled'],
['mercedes', 44],
['lamborgh', 31],
['porsche', 12],
['aston martin', 10]
]);
var view = new google.visualization.DataView(data);
view.setColumns([0, 1, {
label: 'Fuel',
type: 'number',
calc: function () {
return null;
}
}]);
var options = {
title: 'Car distance',
height: 500,
legend: { position: 'none' },
chart: { subtitle: 'money spent in distance travelled' },
bar: { groupWidth: "20%" },
// center bar with x-axis label
isStacked: true,
// material chart theme
theme: 'material',
// y-axis settings
vAxes: {
0: {
ticks: [0, 10, 20, 30, 40, 50],
title: 'Distance'
},
1: {
ticks: [0, 20, 40, 60, 80, 100],
title: 'Fuel'
}
},
// map series
series: {
0: {
targetAxisIndex: 0
},
1: {
targetAxisIndex: 1
}
}
};
var chart = new google.visualization.ColumnChart(document.getElementById('chart_div'));
chart.draw(view, options);
};
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
note
material charts --> packages:['bar'] -- google.charts.Bar
core charts --> packages:['corechart'] -- google.visualization.ColumnChart
I use Material column charts in my Web App.
and I have following out
and codes are below,
google.charts.load('current', {'packages':['bar']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Structure', 'Estimated', 'Actual'],
['hours', 6, 8],
['hours2', 20, 18],
]);
var options = {
chart: {
title: 'Structures by Hours',
subtitle: 'Estimated vs Actual',
}
};
var chart = new google.charts.Bar(document.getElementById('columnchart_hours'));
chart.draw(data, options);
What I want to do two things / need your hand, (on red circled area the image.)
to name the Y-Axis as Hours
and make the same axis scale 2 hours by 2 hours so that the Y-Axis / Hours Axis become 2, 4, 6, 8, 10 so on.
Thanks in advance,
Need to set configuration options for the vAxis.
vAxis: {
title: 'Hours',
ticks: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20]
}
Use title for the axis label.
Supply an array to ticks for the axis tick marks.
However, it doesn't appear ticks works for Material charts.
Note the options have to be converted as well...
google.charts.Bar.convertOptions
This example shows both a Core chart and a Material chart...
google.load('visualization', '1', {
packages: ['corechart', 'bar'],
callback: drawBarChart
});
function drawBarChart() {
var data = google.visualization.arrayToDataTable([
['Structure', 'Estimated', 'Actual'],
['hours', 6, 8],
['hours2', 20, 18],
]);
var options = {
chart: {
title: 'Structures by Hours',
subtitle: 'Estimated vs Actual',
},
vAxis: {
title: 'Hours',
ticks: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20]
}
};
var chart = new google.visualization.ColumnChart(document.getElementById('columnchart_hours'));
chart.draw(data, options);
var chart2 = new google.charts.Bar(document.getElementById('columnchart_hours2'));
chart2.draw(data, google.charts.Bar.convertOptions(options));
}
<script src="https://www.google.com/jsapi"></script>
<div id="columnchart_hours"></div>
<div id="columnchart_hours2"></div>