Grafana math between fields For information about reduction operations applied to time series, see Reduction Operations. 0) if that's what you are after here. I use transformation to display multiple graphs. What Grafana version and Math expressions with multiple queries What Grafana version and what operating system are you using? Grafana v10. Whenever you can push down a query to the database, it’s often more performant. Or drop whole *100, and use unit Percent (0. Is it possible to take this variable in Visualization without having this field in Influxdb? Oct 28, 2021 · Trying to make the jump from InfluxQL to Flux, and need a little help. Jan 11, 2022 · is it possible to sum two or more metrics with influxql (or may be with flux) rather than stacking graphs or executing an expressions on them ? For example - sum of two metrics: uplink and downlink traffic. Using transformations, you can: Rename fields Join time series/SQL-like data Perform mathematical operations across queries Use the output of one transformation as the input to another transformation The main use case is so you can resample time series that do not share the same timestamps so math can be performed between them. 3 (eb8dd72637) on EKS cluster in multi-pod setup (2cores, 8gigs every pod) What are you trying to achieve?. In InfluxQL, we put the two orange lines on the graph in Grafana using math(1. 025) and math(0. 975) as separate queries: Aug 22, 2023 · Hello, i have a time series data row (with multiple graphs) und wanna do some calculations on a column, based on another column. Fields: Input - The variable of time series data (refID (such as A)) to resample Dec 27, 2024 · Steps to calculate diffrence: Step 1: Go to grafana and create new dashboard Step 2: Now click on add visualization and add transformation Step 3: Now click on reduce field and add Last *(for first not null values) and difference Step 4: Now click on add another transformation and add partition by values transformation Step 5: Now set field to field Step 6: Now select the concatenate fields Jan 20, 2025 · I checked Transform “Add field from calculation” but seems there is some issue with creating new field from binary operation on two different fields - it will create new field with result only if the source fields - are the same! and it does not create new field with result of calculation if the source fields different! it is really strange. Server-side expressions allow you to manipulate data returned from queries with math and other operations. Expressions create new data and do not manipulate the data returned by data sources, aside from some minor data restructuring to make the data acceptable input for expressions. In Binary operation mode it allows to Apply basic binary operations (for example, sum or multiply) on values in a single row from two selected fields. Then i need to graph the resultant value. Thanks in advance, Lochana Server-side expressions allow you to manipulate data returned from queries with math and other operations. When i deactivate the transformation, it shows the data but in just one single graph, which is not what i wanna achieve. For information about available calculations, refer to Calculation types. So if you need to do A/B*100, you'd need to apply this transformation two times. GEL enables users to perform calculations on time series data, scalar values, and labeled numbers as part of data transformations in Grafana. Mar 31, 2020 · Hi All, Can anyone please show me how to do mathematical operations to two queries of influxdb in grafana. I. This can be done by resample each of the two series, and then in a Math operation referencing the resampled variables. Using expressions Expressions are most commonly used by Grafana alerting. The processing is done server-side, so Apr 17, 2023 · 0 I am creating a real time dashboard from performance testing perspective that would fetch data from InfluxDB (mostly client side) and Prometheus (server side). When i add any simple calculation to the column, it just shows no data. The main use case is so you can resample time series that do not share the same timestamps so math can be performed between them. Using expressions Expressions are primarily used by Grafana Alerting. But there is no value for this new field “Speed” in influxdb. Transform data Transformations are a powerful way to manipulate data returned by a query before the system applies a visualization. Fields: Input - The variable of time series data (refID (such as A)) to resample May 4, 2024 · Transformation you are looking for is "Add field from calculation". May 19, 2025 · This page documents the mathematical operations supported by the Grafana Expression Language (GEL). Nov 1, 2023 · Hi all, I’ve been working on my dashboard and i would like to add a sum of two values in a graph: Here is my query config: So i have two queries that are monitoring the traffic , and i would like to add the sum of those two values on the same graph. Calculation types The following table contains a list of calculations you can perform in Grafana. It will have below panels (will look fancier in Grafana, of course). You can find these calculations in the Transform tab and in the bar gauge, gauge, stat, and table visualizations. Jul 22, 2020 · Use the “ Add field from calculation ” transformation in Grafana to perform math operations between fields. Consider using Flux (or other query language in the underlying data source) for more complex operations, especially when dealing with data from InfluxDB. Use this for when you need to create a new field, such as calculating the total, difference, percentage, or ratio. e. 0-1. But, i’ve read and tried to do some other transformations, expressions etc but Jun 9, 2023 · I have distance and time column in influxdb using this i have computed the “Speed” Variable by writing the Flex query. The processing is done server-side, so The add field from calculation transformation allows you to create a new column by performing a custom calculation on one or more existing fields in your data. 0. As you can see, when i do transformation, it can’t sum it up. it possible to perform simple calculations on the metrics while retrieving them from database? I mean something like a+b, b-c, (a+b+c)/(d+e+f). Operation - If you select Binary operation or Unary operation mode, then the Operation fields appear. These fields allow you to apply basic math operations on values in a single row from selected fields. You can also use numerical values for binary operations. befdhz ruwo hulvw orwxww vfede yjse nmzcr vxer pmdfu qyon kqouii drjnxs ibyquor sniu iqaxak