underscore tutorial - Lottery DataBase Analysis

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Lottery DataBase Analysis - 07 (_.isObject & passing an object)

From Here on Out, I will no longer be pasting this table into the web page or creating the JSON object dynamically.

THIS SPUR explains how the table got transformed into JSON and I will simply utilize the transformed JSON data from here on out. Doing this will save the need to load the TableToJSON library. And until it is needed for graphical output (I expect to try my hand at FLOT with requires JQuery), the JQuery library will no longer be required either. (Of course, one of the reasons for doing this is an error I was gettign from using multiple libraries at once.)

California Lucky for Life (832)

Prizes	Odds 1 in	Total # of Winners	Prizes Claimed	Prizes Available
$3,250,000	2,400,000	17	11	6
$5,000	1,200,000	34	22	12
$1,000	400,000	102	65	37
$500	12,000	3,400	2,239	1,161
$100	645	63,240	41,624	21,616
$40	350	116,620	76,812	39,808
$20	53	765,000	498,167	266,833
$15	40	1,020,000	668,467	351,533
$10	20	2,040,000	1,325,571	714,429
$5	11	3,570,000	2,287,131	1,282,869
Ticket	10	4,080,000	2,524,475	1,555,525

The above reduces to:

[{"Prizes":"$3,250,000","Odds 1 in":"2,400,000","Total # of Winners":"17","Prizes Claimed":"11","Prizes Available":"6"},{"Prizes":"$5,000","Odds 1 in":"1,200,000","Total # of Winners":"34","Prizes Claimed":"22","Prizes Available":"12"},{"Prizes":"$1,000","Odds 1 in":"400,000","Total # of Winners":"102","Prizes Claimed":"65","Prizes Available":"37"},{"Prizes":"$500","Odds 1 in":"12,000","Total # of Winners":"3,400","Prizes Claimed":"2,239","Prizes Available":"1,161"},{"Prizes":"$100","Odds 1 in":"645","Total # of Winners":"63,240","Prizes Claimed":"41,624","Prizes Available":"21,616"},{"Prizes":"$40","Odds 1 in":"350","Total # of Winners":"116,620","Prizes Claimed":"76,812","Prizes Available":"39,808"},{"Prizes":"$20","Odds 1 in":"53","Total # of Winners":"765,000","Prizes Claimed":"498,167","Prizes Available":"266,833"},{"Prizes":"$15","Odds 1 in":"40","Total # of Winners":"1,020,000","Prizes Claimed":"668,467","Prizes Available":"351,533"},{"Prizes":"$10","Odds 1 in":"20","Total # of Winners":"2,040,000","Prizes Claimed":"1,325,571","Prizes Available":"714,429"},{"Prizes":"$5","Odds 1 in":"11","Total # of Winners":"3,570,000","Prizes Claimed":"2,287,131","Prizes Available":"1,282,869"},{"Prizes":"Ticket","Odds 1 in":"10","Total # of Winners":"4,080,000","Prizes Claimed":"2,524,475","Prizes Available":"1,555,525"}]

Which I have saved as a JSON Object. (The above is nothing more than HTML text and is not linked to any JavaScript.)

    //Array to pass to Next Function (to determine Expected Return Per Prize Level)
    var tempArray1 = _.zip(prizeAmounts, numWin);
    document.getElementById('outputOne').innerHTML = _.map(tempArray1, function(n){return ' ' + n;});

outputOne =

1 Nada Yet

    // Error is An Object
    var tempArray2 = _.map(tempArray1, function(a){return _.isObject(a);});
    document.getElementById('outputTwo').innerHTML = _.map(tempArray2, function(n){return ' ' + n;});

outputTwo =

2 Nada Yet

var tempArray3 = _.map(tempArray1, function(a,b){return a * b;});
document.getElementById('outputTwo').innerHTML = _.map(tempArray3, function(n){return ' ' + n;});

tputThree =

3 Nada Yet

    var tempArray4 = _.map(tempArray1, function(a){
        return a[0] * a[1];
    });
    document.getElementById('outputTwo').innerHTML = _.map(tempArray4, function(n){return ' ' + n;});

outputFour =

4 Nada Yet

Using the original JSON lotteryData, we can pull data directly (so don't ask me why I was plucking and zipping before.

    var tempArray5 = _.map(lotteryData, function(a){
            return a.Prizes;
            //Total # of Winners

    });
    document.getElementById('outputTwo').innerHTML = _.map(tempArray5, function(n){return ' ' + n;});

outputFive =

5 Nada Yet

This last indates that:

There are easier ways to pull data from a JSON object.
My life will be easier in the long run if I preformat the JSON object (remove strings, rename keys, maybe more).

So, time to reformat the Spur again.

Permanent Display Stats

error

Please Note: I am an idiot. No seriously. The odds of my gambling odds calculations being correct are likely on par with my odds of ever winning. You have been warned.