i am new to pinescript but i am facing an huge problem when i try to work with time.
The problem is:
I have an indicator that shows buy (or sell) on the current candlestick but sometimes it disappear. I wanted to add a control where if the buy is true for more than 15 second (average time where the signal will no longer disappear), the alert will send me a notification.
I tried so many things like putting the 'timenow' in a variable and compare as follow
BuyTime := timenow
If timenow - BuyTime >= 15000
RealBuy = true
And many more things that i dont perfectly remember..
I dont know why but i wasn't able to get it to work, any suggestion please?
Thanks in advance
Related
I'm trying to visualize my weather data using grafana. I've already made the prometheus part and now I face an issue that hunts me for quite a while.
I created an counter that adds temperature indoor every five minutes.
var tempIn = prometheus.NewCounter(prometheus.CounterOpts{
Name: "tempin",
Help: "Temperature indoor",
})
for {
tempIn.Add(station.Body.Devices[0].DashboardData.Temperature)
time.Sleep(time.Second*300)
}
How can I now visualize this data that it shows current temperature and stores it for unlimited time so I can look at it even 1 year later like an normal graph?
tempin{instance="localhost:9999"} will only display added up temperature so its useless for me. I need the current temperature not the added up one. I also tried rate(tempin{instance="localhost:9999"}[5m])
How to solve this issue?
Although a counter is not the best solution for this use case, you can use the operator increase.
Increase(tempin{instance="localhost:9999"}[5m])
This will tell you how much the counter increased in the last five minutes
I want to test a simple strategy based on time: every day at fixed time check some conditions and go long. every day at fixed time exit.
Whatever I try to get timeOpenCondition I get syntax error.
Tried things similar to:
EntryTime = if hour=0800 and minute=0
ExitTime = if hour=1400 and minute=0
It feels like I don't get the concept of how this works. Appreciate any help!
my issue is that I want to be able to get two time stamps and compare if the second (later taken) one is less than 59 minutes away from the first one.
Following this thread Compare two dates with JavaScript
the date object may do the job.
but first thing i am not happy with is that it takes the time from my system.
is it possible to get the time from some public server or something?
cause there always is a chance that the system clock gets manipulated within the time stamps, so that would be too unreliable.
some outside source would be great.
then i am not too sure how to get the difference between 2 times (using 2 date objects).
many issue that may pop up:
time being something like 3:59 and 6:12
so just comparing minutes would give the wrong idea.
so we consider hours too.
biut there the issue with the modulo 24.
day 3 23:59 and day 4 0:33 wouldnt be viewed proper either.
so including days too.
then the modulo 30 thing, even though that on top changes month for month.
so month and year to be included as well.
so we would need the whole date, everything from current year to second (because second would be nice too, for precision)
and comparing them would require tons of if clauses for year, month, etc.
do the date objects have some predfeined date comparision function that actually keeps all these things in mind (havent even mentioned leap years yet, have I)?
time would be very important cause exactly at the 59 minutes mark (+-max 5 seconds wouldnt matter but getting rmeitely close to 60 is forbidden)
a certain function would have to be used that without fail closes a website.
script opens website at mark 0 min, does some stuff rinse and repeat style and closes page at 59 min mark.
checking the time like every few seconds would be smart.
Any good ideas how to implement such a time comparision that doesnt take too more computer power yet is efficient as in new month starting and stuff doesnt mess it up?
You can compare the two Date times, but when creating a date time there is a parameter of DateTime(value) which you can use.
You can use this API to get the current UTC time which returns a example JSON array like this:
{
"$id":"1",
"currentDateTime":"2019-11-09T21:12Z",
"utcOffset":"00:00:00",
"isDayLightSavingsTime":false,
"dayOfTheWeek":"Saturday",
"timeZoneName":"UTC",
"currentFileTime":132178075626292927,
"ordinalDate":"2019-313",
"serviceResponse":null
}
So you can use either the currentFileTime or the currentDateTime return from that API to construct your date object.
Example:
const date1 = new Date('2019-11-09T21:12Z') // time when I started writing this answer
const date2 = new Date('2019-11-09T21:16Z') // time when I finished writing this answer
const diff = new Date(date2-date1)
console.log(diff.toTimeString()) // time it took me to write this
Please keep in mind that due to network speeds, the time API will be a little bit off (by a few milliseconds)
I'm having some difficulties setting up an elastalert rule. It's quite a basic one, and I've read the documentation but clearly not understood it and I'm after some help.
I have a basic test rule that i want to alert when my data input to elastic from certain devices stops for more that 5 minutes.
es_host: localhost
es_port: 9200
name: Example rule
type: flatline
index: test_mapping-*
threshold: 1
timeframe:
minutes: 5
filter:
- term:
device: "ggYthy767b"
alert:
- command
command: ["/bin/test"]
realert:
minutes: 10
This works, so when data stops i get an alert, then that alert is silenced until 10 minutes later it realerts again. The issue is that it realerts every 10 minutes and i don't know how to stop it. Is there a way to get it to realert just once and then stop? Or have i misunderstood? Also I have 10+ different devices, and i want the same alert to apply if any of them stop sending data for 5 minutes, is that possible within one rule? Thanks very much in advance.
The question you need to ask to yourself is how often do you want to get alerted. Once a lifetime, a year, a month or fortnightly or what? So "realert" is the part you want to edit. You might want to change it to something like below. So even if the alert is triggered multiple times you'll only get it once a day. It uses simple English terms so you can update it how you like it (weeks, hours etc.).
realert:
days: 1
But if you're getting alerted much more than you want, either you're system is too unstable or your alerts are too paranoid. For example for this alert every 5 minutes you're looking for one record which actually doesn't get populated. You should raise your period or add less selective filters because it's a 'flatline' alert. You can also use it with "query_key" so it will be applied on a per key basis.
three fan-related variables are defined in https://developer.nest.com/documentation/api#has_fan
has_fan (r/o, boolean)
fan_timer_active (r/w, boolean)
fan_timer_timeout (r/o, iso8601)
i suspect that fan_timer_timeout should be read-write; however, when i PUT
{"fan_timer_active": true, "fan_timer_timeout": "2014-09-30T01:07:29Z"}
i get back
No write permission(s) for field(s): fan_timer_timeout
none of the examples (on the SDK site) actually change the fan, so no guidance there.
the "non-public API" from "the early days" would have you do this:
fan_timer_duration = seconds
fan_timer_timeout = time-since-epoch-in-seconds + seconds
fan_timer_timeout isn't documented on the SDK site; however, doing that yields
No write permission(s) for field(s): fan_timer_duration,fan_timer_timeout
could someone clue me in as to what i need to send to get the fan to spin for the next 15 minutes?
many thanks!
The user configures the fan time duration in the Nest app or on the device, the API only provides a way to trigger a fan event.
It seems that fan time duration is a global setting, and would affect turning on the fan manually at the thermostat, hence why it is read only in the API. (Avoids user confusion)