Create histogram using different data - javascript

Im trying to create histograms using javascript, but the main problem that I ran into was data categorizing. I put here small snippets of data as an example
data set 1:
{
"Cu":[0.7,0.8,1.2,1,1.3,1.9,2.7,0.9]
}
data set 1:
{
"Cu":[4.4,5.8,0.8,1,0.6,4,1.1,2.1,1.5]
}
The problem is that each file has different data and I somehow need to create the graph as below
Example:

Related

d3plus not load data from csv

my code:
function d3_chart() {
// sample data array
// instantiate d3plus
var visualization = d3plus.viz()
.container("#viz") // container DIV to hold the visualization
.data("./extra/acc.csv", {"filetype": "csv"}) // data to use with the visualization
.type("line") // visualization type
.y("x") // key to use for y-axis
.x("timestamp") // key to use for x-axis
.draw() // finally, draw the visualization!
}
my csv:
timestamp,x,y,z
0,2019-02-28 12:20:19.631,1.072,-0.153,10.113
1,2019-02-28 12:20:19.731,1.072,-0.153,10.419
2,2019-02-28 12:20:19.831,1.072,-0.153,9.96
3,2019-02-28 12:20:19.931,1.072,-0.153,10.113
4,2019-02-28 12:20:20.031,1.072,-0.153,10.113
5,2019-02-28 12:20:20.132,1.225,-0.153,9.96
6,2019-02-28 12:20:20.231,1.225,-0.153,9.96
7,2019-02-28 12:20:20.331,1.225,-0.153,9.96
8,2019-02-28 12:20:20.431,0.919,-0.306,9.5
9,2019-02-28 12:20:20.531,0.919,0.459,9.807
10,2019-02-28 12:20:20.631,1.225,0.153,10.113
11,2019-02-28 12:20:20.731,1.379,-1.992,10.113
12,2019-02-28 12:20:20.831,1.838,-0.306,9.653
13,2019-02-28 12:20:20.931,0.153,0.766,10.113
14,2019-02-28 12:20:21.032,0.459,1.532,10.266
15,2019-02-28 12:20:21.133,1.072,0.0,9.96
I just got getting message:
No Data Available
What is wrong? I don't find any example in internet with csv loading via this library
Or something know how graph chart from csv via general D3 with simple example?

d3plus seems to be using v3.5.15 of d3.js. Regardless of that, you will need to tell d3plus of how to load the data. Reading the API documentation it seems you will have to load the data using
d3plus.dataLoad(path, [formatter], [key], [callback]) as explained here.
Alternatively, you can use d3.js to parse your csv file and pass it as the data. To do this you can use the
d3.csv.parse(string[, accessor]) as provided in the d3.js CSV API.
Keep in mind in both cases you will need to format your timestamps in the correct time format (For d3.js Time Format API doc), for you to be able to use the time scales. Also at least for d3.js when the data is parsed from CSV all values are string values and hence you will need to change the type of the values using an type conversion function. You can read more about this in a great guide on how to read data by Learnjsdata (d3.js v3, or d3.js v5)
There are several examples out there for d3.js v3 on importing the data for processing which may be a better option overall. Also consider d3plus has not got a github commit in over a year so the library may not be well supported.
I hope this helps and at least gives you a start. If you need more help please leave a comment below.

load json data to dataset in d3js

I am having json file like this. It contains some data.
[{\"Frequency\":\"Building 1\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":46,\"Value1\":26,\"Value2\":22},{\"Name\":\"food\",\"Value\":32,\"Value1\":26,\"Value2\":12}]},{\"Frequency\":\"Building 2\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":48,\"Value1\":26,\"Value2\":23},{\"Name\":\"food\",\"Value\":34,\"Value1\":33,\"Value2\":12}]},{\"Frequency\":\"Building 3\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":57,\"Value1\":22,\"Value2\":24},{\"Name\":\"food\",\"Value\":42,\"Value1\":16,\"Value2\":11}]},{\"Frequency\":\"Building 4\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":59,\"Value1\":26,\"Value2\":33},{\"Name\":\"food\",\"Value\":44,\"Value1\":26,\"Value2\":35}]},{\"Frequency\":\"Building 5\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":62,\"Value1\":26,\"Value2\":11},{\"Name\":\"food\",\"Value\":48,\"Value1\":26,\"Value2\":3}]},{\"Frequency\":\"Building 6\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":62,\"Value1\":26,\"Value2\":21},{\"Name\":\"food\",\"Value\":47,\"Value1\":26,\"Value2\":24}]},{\"Frequency\":\"Building 7\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":58,\"Value1\":26,\"Value2\":22},{\"Name\":\"food\",\"Value\":43,\"Value1\":26,\"Value2\":22}]},{\"Frequency\":\"Building 8\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":48,\"Value1\":26,\"Value2\":2},{\"Name\":\"food\",\"Value\":34,\"Value1\":26,\"Value2\":33}]}]
I want to store this json file into dataset in d3.js. or
I have given all data are static into my code. I want to give these data from json file to d3.js can any one give me example.
my expected result is
dataset = JSON.parse("[{\"Frequency\":\"Building 1\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":46,\"Value1\":26,\"Value2\":22},{\"Name\":\"food\",\"Value\":32,\"Value1\":26,\"Value2\":12}]},{\"Frequency\":\"Building 2\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":48,\"Value1\":26,\"Value2\":23},{\"Name\":\"food\",\"Value\":34,\"Value1\":33,\"Value2\":12}]},{\"Frequency\":\"Building 3\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":57,\"Value1\":22,\"Value2\":24},{\"Name\":\"food\",\"Value\":42,\"Value1\":16,\"Value2\":11}]},{\"Frequency\":\"Building 4\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":59,\"Value1\":26,\"Value2\":33},{\"Name\":\"food\",\"Value\":44,\"Value1\":26,\"Value2\":35}]},{\"Frequency\":\"Building 5\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":62,\"Value1\":26,\"Value2\":11},{\"Name\":\"food\",\"Value\":48,\"Value1\":26,\"Value2\":3}]},{\"Frequency\":\"Building 6\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":62,\"Value1\":26,\"Value2\":21},{\"Name\":\"food\",\"Value\":47,\"Value1\":26,\"Value2\":24}]},{\"Frequency\":\"Building 7\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":58,\"Value1\":26,\"Value2\":22},{\"Name\":\"food\",\"Value\":43,\"Value1\":26,\"Value2\":22}]},{\"Frequency\":\"Building 8\",\"Data\":[{\"Name\":\"Medicine\",\"Value\":48,\"Value1\":26,\"Value2\":2},{\"Name\":\"food\",\"Value\":34,\"Value1\":26,\"Value2\":33}]}]");
inside the bracket my data should be come i dont know how to do this can any tell me how to do this.
before i tried this but it is not working.
d3.json("D3json.json", function(error, data) {
var datas = data;
})
here is my jsfiddle example: Click here to see the example
Thanks
Vinoth S

If I understood your question correctly, you are trying to dynamically load JSON data in contrast to having it hard-coded in your file.
Here is an example how to do it: http://bl.ocks.org/Jverma/887877fc5c2c2d99be10
In general, you have to execute the drawing part after you successfully loaded the data (within the callback function of d3.json())

Visualising amount of similar elements in database in d3.js

I created a webcrawler which crawls a website and stores the data into mysql. Next, I would like to visualise the amount of the single response codes of the crawled websites using a pie chart. I decided to use d3.js but I don't know how to visualise the total values of the response codes. For example if I have the following data stored in a json file:
{"crawl":[
{"url":"http:/www.example.com", "responseCode":"200"},
{"url":"http:/www.example.com/page1", "responseCode":"200"},
{"url":"http:/www.example.com/page2", "responseCode":"301"}
{"url":"http:/www.example.com/page3", "responseCode":"200"},
{"url":"http:/www.example.com/page4", "responseCode":"404"},
]}
is it possible to visualise how many websites returned a 200, how many returned 301 etc.? So in this case I would like to create a pie chart with the values
200 = 3
301 = 1
404 = 1
Is this possible without having the absolute values?

Can I export my Dygraph data as a single object to a CSV file?

I dynamically generate a Dygraph chart with data retrieved and formatted using a PHP script.
var vGraph = new Dygraph(document.getElementById("dgraphChartContainer"),
"./data_packager.php",
{ //options
...
};
My customer wants me to add a button on the Dygraph to download a CSV file of the complete raw data set returned by the PHP query. Is there a single Dygraph object I can reference of the entire RxC matrix? If not, is there a simpler or more efficient way to recreate the CSV than to perform a .getValue on each element in the data set and then export to a new CSV file per one of the solutions in How to export JavaScript array info to csv (on client side)??

Integrating JSON data to highcharts

Lets say I want to use JSON code from one site, particular this one, "http://coinmarketcap.com/static/generated_pages/currencies/datapoints/boostcoin-main.json", to integrate it for my highcharts. As I have seen this has following values: x_min, x_max and price_data. How can I make highcharts on my site using this JSON data? Any help with this?

Look at this example and how it uses JSON code and notice how the JSON data should be, because it changes with every chart type: http://jsfiddle.net/highcharts/YWVHx/
$.getJSON('THE LINK TO YOUR FILE',
function(data) {
// Create the chart
$('#container').highcharts(
...
data : data,
...
);
});
EDIT: More information about working with data

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