Logarithmic point plot via the API?

[corey_r]

Struggling with this. I found out that a point-plot is called a "scatterplot" in the API docs, but I can't find the make-the-y-axis-log part. Help?

[corey_r]

Hi Jordi,

For a Scatter plot you can specify your X and Y axis query and then in the Axis tab of chart properties you should be able to switch to logarithmic axis if you want to

Here is an example that uses log axis on the the scatter plot -> https://yammer.wavefront.com/u/jhTpYF8WMZ

Hope this helps.

Salil

[corey_r]

I mean via the API, not via the web interface.

[corey_r · Accepted solution]

Ah. So sorry I missed the API part.

Well you can create the dashboard by passing the json to /api/dashboard .

In the chart properties if you set base=1 then that means its a linear axis and if you change it to 10 then it would be a log (base 10) axis an similarly you could use a binary log (ln)  if you'd like by setting the base to 2.

Here is a snippet from the dashboard.json

Linear:

      "charts": [

            {

              "name": "Linear",

              "sources": [

                {

                  "name": "agent-rate",

                  "query": "rate(ts(~agent.points.*.received))",

                  "disabled": null,

                  "scatterPlotSource": "X",

                  "querybuilderSerialization": null,

                  "querybuilderEnabled": false,

                  "secondaryAxis": null

                },

                {

                  "name": "memory",

                  "query": "ts(~agent.jvm.memory.heapUsed)",

                  "disabled": null,

                  "scatterPlotSource": "Y",

                  "querybuilderSerialization": null,

                  "querybuilderEnabled": false,

                  "secondaryAxis": null

                }

              ],

              "units": "",

              "base": 1,

                .

                .

                .

Logarithmic:

      "charts": [

            {

              "name": "Log base 10",

              "sources": [

                {

                  "name": "agent-rate",

                  "query": "rate(ts(~agent.points.*.received))",

                  "disabled": null,

                  "scatterPlotSource": "X",

                  "querybuilderSerialization": null,

                  "querybuilderEnabled": false,

                  "secondaryAxis": null

                },

                {

                  "name": "memory",

                  "query": "ts(~agent.jvm.memory.heapUsed)",

                  "disabled": null,

                  "scatterPlotSource": "Y",

                  "querybuilderSerialization": null,

                  "querybuilderEnabled": false,

                  "secondaryAxis": null

                }

              ],

              "units": "",

              "base": 10,

               .

               .

               .

Hope this answers your question

Salil D

[corey_r]

Thanks!