[英]Create summary table from column chart in Google Charts
我正在 Google Charts 中創建一個柱形圖,我還想創建一個表格圖表,顯示基於列值的匯總數據,即。 平均值、最小值、最大值、總數。
我已經在 drawchart 函數之外將這些聲明為全局變量(初始化為 0),並且我已經在 drawchart 函數中分配了值(沒有 var):
function drawPower() {
$.get("costs_daily.csv", function(csvString) {
// transform the CSV string into a 2-dimensional array
var arrayData = $.csv.toArrays(csvString, {onParseValue: $.csv.hooks.castToScalar});
// this new DataTable object holds all the data
var data = new google.visualization.arrayToDataTable(arrayData);
/// get min, max cost
var range = data.getColumnRange(3);
var n_rows = data.getNumberOfRows();
function getSum(data, row) {
var total = 0;
for (i = 0; i < n_rows; i++)
total = total + data.getValue(i, row);
return total;
}
totCost = getSum(data, 3);
aveCost = totCost / n_rows;
minCost = range.min;
maxCost = range.max;
var options = {
title: 'Costs for last 30 days',
titleTextStyle: {color: 'grey', fontSize: 16},
hAxis: {title: 'Date', titleTextStyle: {bold: false, italic: false, color: 'grey'}, slantedTextAngle: 90, textStyle: {fontSize: 12}},
legend: {position: 'top'},
vAxes: {
0: {title: 'Cost (p)', titleTextStyle: {bold: false, italic: false, color: 'grey'}},
},
focusTarget: 'category',
intervals: {color:'#000000',
textStyle: { color: 'none'}},
series: {
0: {color: '#44AA99', type: 'bars'},
1: {color: '#DDCC77', type: 'bars'},
2: {
color: 'transparent',
type: 'line',
lineWidth: 0,
pointSize: 0,
enableInteractivity: false,
visibleInLegend: false
}
},
interpolateNulls: true,
bar: { groupWidth: '75%' },
isStacked: true,
};
var formatter = new google.visualization.NumberFormat(
{prefix: '£', fractionDigits: 2}
);
formatter.format(data,1);
formatter.format(data,2);
formatter.format(data,3);
var chart = new google.visualization.ComboChart(document.getElementById('power_div'));
chart.draw(data, options);
},'text');
}
然后我創建了一個單獨的函數來繪制具有這些值的表格:
function drawTable() {
statsData = [
['Stat', 'Cost'],
['Average', aveCost],
['Minimum', minCost],
['Maximum', maxCost],
['Total', totCost]
];
var stats = new google.visualization.arrayToDataTable(statsData);
var options = {
showRowNumber: false,
width: '100%',
height: '100%'
};
var formatter = new google.visualization.NumberFormat(
{prefix: '£', fractionDigits: 2}
);
formatter.format(stats,1);
var table = new google.visualization.Table(document.getElementById('table_div'));
table.draw(stats, options);
}
但這些值保持在它們的初始化值(零)。 有沒有辦法將計算值從圖表函數傳遞給表格函數?
不確定從現在開始在哪里drawTable
,
但是是的,您可以將值從圖表函數傳遞給表格函數。
在圖表函數中創建statsData
,
然后將其傳遞給 table 函數。
並刪除當前正在調用 table 函數的位置。
totCost = getSum(data, 3);
aveCost = totCost / n_rows;
minCost = range.min;
maxCost = range.max;
statsData = [
['Stat', 'Cost'],
['Average', aveCost],
['Minimum', minCost],
['Maximum', maxCost],
['Total', totCost]
];
drawTable(statsData);
...
function drawTable(statsData) {
...
看下面的片段...
function drawPower() { $.get("costs_daily.csv", function(csvString) { // 將 CSV 字符串轉換為二維數組 var arrayData = $.csv.toArrays(csvString, {onParseValue: $.csv. hooks.castToScalar});
// this new DataTable object holds all the data
var data = new google.visualization.arrayToDataTable(arrayData);
/// get min, max cost
var range = data.getColumnRange(3);
var n_rows = data.getNumberOfRows();
function getSum(data, row) {
var total = 0;
for (i = 0; i < n_rows; i++)
total = total + data.getValue(i, row);
return total;
}
totCost = getSum(data, 3);
aveCost = totCost / n_rows;
minCost = range.min;
maxCost = range.max;
statsData = [
['Stat', 'Cost'],
['Average', aveCost],
['Minimum', minCost],
['Maximum', maxCost],
['Total', totCost]
];
drawTable(statsData);
var options = {
title: 'Costs for last 30 days',
titleTextStyle: {color: 'grey', fontSize: 16},
hAxis: {title: 'Date', titleTextStyle: {bold: false, italic: false, color: 'grey'}, slantedTextAngle: 90, textStyle: {fontSize: 12}},
legend: {position: 'top'},
vAxes: {
0: {title: 'Cost (p)', titleTextStyle: {bold: false, italic: false, color: 'grey'}},
},
focusTarget: 'category',
intervals: {color:'#000000',
textStyle: { color: 'none'}},
series: {
0: {color: '#44AA99', type: 'bars'},
1: {color: '#DDCC77', type: 'bars'},
2: {
color: 'transparent',
type: 'line',
lineWidth: 0,
pointSize: 0,
enableInteractivity: false,
visibleInLegend: false
}
},
interpolateNulls: true,
bar: { groupWidth: '75%' },
isStacked: true,
};
var formatter = new google.visualization.NumberFormat(
{prefix: '£', fractionDigits: 2}
);
formatter.format(data,1);
formatter.format(data,2);
formatter.format(data,3);
var chart = new google.visualization.ComboChart(document.getElementById('power_div'));
chart.draw(data, options);
},'text');
}
function drawTable(statsData) {
var stats = new google.visualization.arrayToDataTable(statsData);
var options = {
showRowNumber: false,
width: '100%',
height: '100%'
};
var formatter = new google.visualization.NumberFormat(
{prefix: '£', fractionDigits: 2}
);
formatter.format(stats,1);
var table = new google.visualization.Table(document.getElementById('table_div'));
table.draw(stats, options);
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.