Use of Arcade to filter by a "sensor_id" to get right data for pop-ups across many point features

[DavidFrisbey]

Hi Esri Community,

Goal is to return the 12 most recent hours per sensor($feature) from another hosted table inside a pop-up on my map.

On my map I have about 30 sensors that are point features.

The sensors have a unique sensor_id that is common across my map and the other hosted table.

The other hosted table is an archive of historical data, it contains many previous sensor values. 

The map only contains the most recent hour and is live according to a regularly scheduled task.

I can't seem to filter down my variable "last_twelve_hrs" by "sensor_id." I am stuck where I am getting the most recent hourly averages from all sensors in the hosted table instead of per sensor($feature). 

The next step, which I am also unsure about is how to present the most recent 12 hours per sensor($feature) so it can fit in a bar or line graph in a pop-up. 

Thanks for your help and time Esri Community!

ARCADE SCRIPT:

var p = Portal("https://arcgis.com");

var table = FeatureSetByPortalItem(

  p, "0749f4597e054caf809b5b55d0b869d4",

  0,

  ['sensor_id','time_stamp','pm25calibrated','avg_'],

  false

)

var last_twelve_hrs = []

//function right_sensor(i) {return i table_twelve['sensor_id'] = '$feature.sensor_id'}

var table_twelve = Filter(table, "avg_ = '12'")

for (var t in table_twelve) { 

//table_twelve = Filter(table_twelve, right_sensor)

last_twelve_hrs = Top(OrderBy(table_twelve,"time_stamp desc"),12)

}

return last_twelve_hrs

OUTPUT:

featureSet:

OBJECTID sensor_id time_stamp pm25calibrated avg_

281981	"ANPZ34P3"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	54	12
281982	"AYF7FWBQ"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	85	12
281983	"AGFL7RGG"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	17	12
281984	"ACCGJ2KB"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	31	12
281985	"APPWHRLG"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	38	12
281986	"AHLN14H6"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	61	12
281987	"AWL3RVGH"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	43	12
281988	"AYW1PRKD"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	19	12
281989	"A4RRSN0B"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	30	12
281990	"A9BHX0FH"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	22	12
281991	"AQQ4M3SG"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	37	12
281992	"A3T32W43"	Dec 15, 2023, 12:00:00 PM Pacific Standard Time	47	12

[KenBuja · Accepted solution]

Here's how to filter out the records to only show the last twelve readings from a particular sensor.

var p = Portal("https://arcgis.com");
var table = FeatureSetByPortalItem(
  p, "0749f4597e054caf809b5b55d0b869d4",
  0,
  ['sensor_id','time_stamp','pm25calibrated','avg_'],
  false
)
var sensor = $feature.sensor_id;

var table_twelve = Filter(table, "avg_ = '12' AND sensor_id = @sensor")
return Top(OrderBy(table_twelve,"time_stamp desc"),12)

[DavidFrisbey]

That solution works, thanks again, Ken!