p1 = hpccDataflow.pipe(
hpccDataflow.map((y, i) => ({date:y, value:amount[i]})),
hpccDataflow.map((r, i) => ({...r, value_int: parseInt(r.value.split(",").join(""))})),
hpccDataflow.filter((r, i) => !isNaN(r.value_int)),
hpccDataflow.map((r, i) => ({date: r.date, value: r.value_int})),
hpccDataflow.sensor(min),
hpccDataflow.sensor(max),
hpccDataflow.sensor(mean)
)