I am new to pine script coding,therefore not able to undestand complex code.I want to mark the open and close of the candle with horizontal lines in the previous day intraday tf with the highest volume.However the calculation of the highest volume must not include the first and last candle of that previous day.
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I want to know when a time series stabilizes after its peak.
This time series shows a peak, and then it goes down (see images below (1); (2)).
I would like to calculate the moment at which this time-series stabilizes (becomes flatter) after its peak.
In an ideal world, the data should go down to 0 and stay there. But as you see, it does not reach 0, nor stay 100% stable.
I thought of various different ways/possibilities:
-Calculate a tangent point to see the slope change. But the data has many small ups & downs even after smoothing it.
-Calculate the average at the tail (end of the series /e.g. if time = 8000; calculate last 2000 values mean average), then calculate an interval (margin +- this value), then calculate the time at which the first value appears in this interval.
-Calculate pronounced changes in the trend or slope.
*Maybe you have a better idea I did not consider. Feel free to share it if you've already dealt with this in the past.
I need to know the time at which this stabilization happened.
Ideally, you could mute/ignore all values before the peak value, but without deleting these rows (time should stay). Calculating the peak is easy (max value).
I also standardized the data so it starts at y=0 (I have various time series, I make them all start at y=0 to compare them later*).
I do not know how to provide the data because it is about 8k values.
I would really appreciate your help.
Thank you very much.
When i compare 2 time period, if there is decrease - does the % have to be red and negative no?
example
1.389 users in the selected time interval compared to 1.260 users of the previous period.
An increase of 10.24% compared to the previous period. There is nothing strange.
I'm using Graphite and Grafana and I'm trying to plot a series against a time shifted version of itself for comparison.
(I.e. is the current value similar to this time last week?)
What I'd like to do is plot;
the 5 minute moving average of the series
a band consisting of the 5 minute moving average of the series timeshifted by 7 days, bounded above and below by the standard deviation of itself
That way I can see if the current moving average falls within a band limited by the standard deviation of the moving average from a week ago.
I have managed to produce a band based on the timeshifted moving average, but only by offsetting either side by a constant amount. I can't work out any way of offsetting by the standard deviation (or indeed by any dynamic value).
I've copied a screenshot of the sort of thing I'm trying to achieve. The yellow line is the current moving average, the green area is bounded by the historical moving average offset either side by the standard deviation.
Is this possible at all in Grafana using Graphite as the backend?
I'm not quite on the latest version, but can easily upgrade (and will do so shortly anyway).
Incidentally, I'm not a statistician, if what I'm doing actually makes no sense mathematically, I'd love to know! ;-) My overall goal is to explore better alternatives, instead of using static thresholds, for highlighting anomalous or problematic server performance metrics - e.g. CPU load, disk IOPS, etc.
I'm trying to get some information out of a couple of waveforms, which I currently have in the format of a CSV table with the columns: Time, Volume, Pressure, Flow. (The data is the flow/pressure/volume data obtained from a healthcare ventilator.)
I want to get excel / R / another-programme-that-I've-not-yet-thought-of to do the following with the waveform:
Break it up into individual breaths - starting with when the pressure starts to rise above a baseline (shortly followed by the flow rising above 0)
For each breath, extract:The highest pressure that occurs, the pressure just before the start of the next breath, the lowest pressure that occurs
Does anyone know how to do that, without doing it manually? (It'd mean trawling through a few hours-worth of ventilator data for the project I'm trying to do)
I've attached a copy of the shapes of the waves I'm dealing with, to try to help make more sense.Pressure & Volume against time
My intention is to work out the breath-to-breath variability in maximum, minimum, and baseline pressures.
Ultimately, I've come up with my own fix using excel.
For each pressure value, I've taken the mean of that value and the two either side of it. I've then compared this to the previous mean. For my data, a change of this mean of more than 1% in either direction identifies the beginning and end of the up- and down-stroke of the pressure curve, and I can identify where in the curve I am based on the absolute value for pressure (the peak should never be lower than the highest baseline for the data I've collected), and for the slopes, the first direction of change of the mean (this smooths out occasionally inconsistent slopes).
I'm then graphing the data, along with the transition points, the calculated phase of the breath, and the breath count, so I can sense-check it visually.
Ged
I have to draw the average of data points of last 10 hours. I get a data point for every 5 minutes, so essentially i have to draw the average of last 12*10 data points.
Suppose i have "delay" as a data point, at every point it makes more sense to draw average of last 10 hours delay instead of plotting the current delay.
I tried Average(),sum() and summarize() functions but i guess they do not achieve this functionality.
Any help on this?
Can you take advantage of the movingAverage function within graphite?
An example for the 10 hours of the a moving average would be the below.
&target=movingAverage(datapoint.name.deplay,'10hour')