script help - "multiply by non-int of type 'float' error"

the below formula is throwing a multiply by non-int error that i can't quite sort out, any help with the syntax or other issue is appreciated! thx

the commented out lines are ref of the original formulas i'm trying to implement. i tried breaking them into summing variables in an effort to help with the multiply by error. i'm pretty sure i'm not handing the indigo variables properly, just can't figure it out...

Script Error schedule "weather update every 15min" embedded script error:
Script Error can't multiply sequence by non-int of type 'float'
Script Error Exception Traceback (most recent call shown last):

embedded script, line 76, at top level
TypeError: can't multiply sequence by non-int of type 'float'

Code: Select all

if cnthumid == "- data unavailable -":
   vardew = wthrStation.states['dewPointC']
   vartemp = wthrStation.states['temperatureC']

   import math

   argdew = math.exp((17.625 * vardew)/(243.04 + vardew)). --- THIS IS LINE 76
   argtem = math.exp((17.625 * vartemp)/(243.04 + vartemp))

   cnthumid = round(100 * (argdew / argtem), 2)

   #cnthumid = 100 * {math.exp[17.625 * wthrStation.states['dewPointC']/(243.04 + wthrStation.states['dewPointC'])] / math.exp[17.625 * wthrStation.states['temperatureC']/(243.04 + wthrStation.states['temperatureC'])]}
   #ref RH = 100 × {exp[17.625 × Dp/(243.04 + Dp)]/exp[17.625 × T/(243.04 + T)]}.

   indigo.variable.updateValue(1163325337, "alt")
else:
   indigo.variable.updateValue(1163325337, "")

Does that line actually have a period (decimal point) at the end? I don’t think that should be there.

it doesn't, no. must've hit it while adding the comment. it's not in the code.

thx

i'm realizing it is possible that this error could be thrown if the value of DewpointC is 'unavailable' or similar.. a text str that the station is reporting for whatever reason.. that could scuttle the whole formula. i haven't trapped for all those possibilities... not sure, but.. could be the case.

i'm realizing it is possible that this error could be thrown if the value of DewpointC is 'unavailable' or similar.. a text str that the station is reporting for whatever reason.. that could scuttle the whole formula. i haven't trapped for all those possibilities... not sure, but.. could be the case.

Have you checked the type as a debug method:

Code: Select all

print(type(vardew))
print(type(vartemp))

thanks ryan.

when i use test strs that are the expected values it works perfectly. i think this must be that the station is reporting another string i haven't seen/caught yet. i guess i'll just keep an eye out.

i have set the states to log when the alt computation method is used (when 'data unavailable' is returned from station the algorithm switches to the raw data and uses the involved dewpoint computation method to derive the rh - this is in fact how the station itself does it... when it works )

anyway, thanks for the thought. i think i'm gonna let this throw an error every now an again because i can't seem to keep up with the station's odd reporting at times. either way the system works through the error so it's ok.

also i have converted the dew and temp var from float to round and that may solve the other part of this. for some reason the math doesn't want to multiply a number by a float var... rounding it may fix? we'll see.

thx all