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1
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{
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"$schema": "https://vega.github.io/schema/vega/v5.json",
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"width": 1200,
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"height": 200,
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"padding": 5,
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"signals": [
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{
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"name": "length",
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"value": ["year","month", "date"],
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"bind": {
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"input": "select",
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"options": [
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["year"],
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["year","month"],
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["year","week"],
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["year","month", "date"]
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],
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"labels": [
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"year",
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"month",
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"week",
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"day"
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]
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}
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},
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{
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"name": "operation",
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"value": "average",
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"bind": {
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"input": "select",
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"options": [
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"average",
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"count",
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"sum",
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"median",
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"min",
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"max"
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]
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}
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}
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],
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"data": [
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{
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"name": "table",
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"values" : null,
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"transform": [
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{
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"type": "formula",
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"expr": "toDate(datum[\"timestamp\"])",
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"as": "dateTime"
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},
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{
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"type": "timeunit",
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"field": "dateTime",
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"units": {"signal": "length"}
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},
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{
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"type": "aggregate",
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"fields": ["max"],
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"ops": [{"signal" : "operation"}],
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"groupby": ["unit0"],
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"as": ["avg"]
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},
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{
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"type": "timeunit",
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"field": "unit0",
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"units": {"signal": "length"}
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}
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]
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},
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{
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"name": "table2",
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"source": "table",
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"transform":[
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{
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"type": "lookup",
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"from": "table",
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"key": "unit0",
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"fields": ["unit1"],
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"as": ["obj"]
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}
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]
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}
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],
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"scales": [
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{
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"name": "xscale",
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"type": "time",
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92
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"domain": {"data": "table", "fields": ["unit0", "unit1"]},
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93
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"range": "width"
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94
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},
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{
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"name": "yscale",
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"type": "linear",
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98
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"domain": {"data": "table", "field": "avg"},
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"nice": true,
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"range": "height"
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101
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}
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102
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],
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103
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"axes": [
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{ "orient": "bottom", "scale": "xscale", "tickCount": 6 },
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{ "orient": "left", "scale": "yscale" }
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],
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108
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"marks": [
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{
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"type": "symbol",
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"from": {"data":"table"},
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113
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"encode": {
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"update": {
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"shape": {"value": "circle"},
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"size": {"value": 20},
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"x": {"scale": "xscale", "field": "unit0"},
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"y": {"scale": "yscale", "field": "avg"},
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"color": {"value": "both"},
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120
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"strokeWidth": {"value": 1}
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121
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}
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122
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}
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123
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},
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124
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{
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"type": "rule",
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"from": {"data":"table2"},
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127
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"encode": {
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"enter": {
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"x": {"scale": "xscale", "field": "unit0"},
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"x2":[
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{
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"test": "isValid(datum.obj)",
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133
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"scale" : "xscale",
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"field" : "obj.unit0"
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135
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},
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136
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{
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"scale" : "xscale",
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"field" : "unit0"
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139
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}
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],
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"y": {"scale": "yscale", "field": "avg"},
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"y2":[
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{
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144
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"test": "isValid(datum.obj)",
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145
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"scale" : "yscale",
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146
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"field" : "obj.avg"
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147
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},
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148
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{
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149
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"scale" : "yscale",
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150
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"field" : "avg"
|
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151
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}
|
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152
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]
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153
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|
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154
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|
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155
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156
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},
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157
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"update": {
|
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158
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"stroke": {"value": "steelblue"},
|
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159
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"strokeWidth": {"value": 1}
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160
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},
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161
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"hover": {
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162
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"stroke": {"value": "red"},
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163
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"strokeWidth": {"value": 3}
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164
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}
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165
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}
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166
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}
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|
167
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]
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168
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169
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170
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171
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}
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