forcing scale on plotly heatmap












0















So I am creating 1111 different plotly HEATMAPS from the same sort of data, however each of these plots has a slightly different colorscale range. This means that a "red" on one plot may not be the same "red" on another plot.



For the sake of reproducibility lets use the volcano dataset as an example.



I have found a way to force the scale on a plotly SURFACE plot using the following code:



p <- plot_ly(z = kdetest$z, type = "surface", colors = c("blue4", "blue", "green", 
"yellow", "orange", "red", "red", "red", "red", "red"),
cauto = F, cmin = 0, cmax = 250)


This forces the colorscale between values 0 and 250 for a surface plot. I would expect that there should be a similar way to do this for heatmaps as they are just flat surface plots, however the heatmap type doesn't have variables cauto, cmin or cmax.



Does anyone know of a way to do this for heatmaps?










share|improve this question



























    0















    So I am creating 1111 different plotly HEATMAPS from the same sort of data, however each of these plots has a slightly different colorscale range. This means that a "red" on one plot may not be the same "red" on another plot.



    For the sake of reproducibility lets use the volcano dataset as an example.



    I have found a way to force the scale on a plotly SURFACE plot using the following code:



    p <- plot_ly(z = kdetest$z, type = "surface", colors = c("blue4", "blue", "green", 
    "yellow", "orange", "red", "red", "red", "red", "red"),
    cauto = F, cmin = 0, cmax = 250)


    This forces the colorscale between values 0 and 250 for a surface plot. I would expect that there should be a similar way to do this for heatmaps as they are just flat surface plots, however the heatmap type doesn't have variables cauto, cmin or cmax.



    Does anyone know of a way to do this for heatmaps?










    share|improve this question

























      0












      0








      0








      So I am creating 1111 different plotly HEATMAPS from the same sort of data, however each of these plots has a slightly different colorscale range. This means that a "red" on one plot may not be the same "red" on another plot.



      For the sake of reproducibility lets use the volcano dataset as an example.



      I have found a way to force the scale on a plotly SURFACE plot using the following code:



      p <- plot_ly(z = kdetest$z, type = "surface", colors = c("blue4", "blue", "green", 
      "yellow", "orange", "red", "red", "red", "red", "red"),
      cauto = F, cmin = 0, cmax = 250)


      This forces the colorscale between values 0 and 250 for a surface plot. I would expect that there should be a similar way to do this for heatmaps as they are just flat surface plots, however the heatmap type doesn't have variables cauto, cmin or cmax.



      Does anyone know of a way to do this for heatmaps?










      share|improve this question














      So I am creating 1111 different plotly HEATMAPS from the same sort of data, however each of these plots has a slightly different colorscale range. This means that a "red" on one plot may not be the same "red" on another plot.



      For the sake of reproducibility lets use the volcano dataset as an example.



      I have found a way to force the scale on a plotly SURFACE plot using the following code:



      p <- plot_ly(z = kdetest$z, type = "surface", colors = c("blue4", "blue", "green", 
      "yellow", "orange", "red", "red", "red", "red", "red"),
      cauto = F, cmin = 0, cmax = 250)


      This forces the colorscale between values 0 and 250 for a surface plot. I would expect that there should be a similar way to do this for heatmaps as they are just flat surface plots, however the heatmap type doesn't have variables cauto, cmin or cmax.



      Does anyone know of a way to do this for heatmaps?







      r plotly heatmap






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 15 '18 at 0:41









      SeayOLearySeayOLeary

      35




      35
























          1 Answer
          1






          active

          oldest

          votes


















          0














          The equivalent variables on heatmaps are zauto, zmin, zmax. So the following code should work:



          p <- plot_ly(z = volcano, type = "heatmap", colors = c("blue4", "blue", "green", 
          "yellow", "orange", "red", "red", "red", "red", "red"),
          zauto = F, cmin = 0, cmax = 250)





          share|improve this answer























            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














            draft saved

            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53310866%2fforcing-scale-on-plotly-heatmap%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            The equivalent variables on heatmaps are zauto, zmin, zmax. So the following code should work:



            p <- plot_ly(z = volcano, type = "heatmap", colors = c("blue4", "blue", "green", 
            "yellow", "orange", "red", "red", "red", "red", "red"),
            zauto = F, cmin = 0, cmax = 250)





            share|improve this answer




























              0














              The equivalent variables on heatmaps are zauto, zmin, zmax. So the following code should work:



              p <- plot_ly(z = volcano, type = "heatmap", colors = c("blue4", "blue", "green", 
              "yellow", "orange", "red", "red", "red", "red", "red"),
              zauto = F, cmin = 0, cmax = 250)





              share|improve this answer


























                0












                0








                0







                The equivalent variables on heatmaps are zauto, zmin, zmax. So the following code should work:



                p <- plot_ly(z = volcano, type = "heatmap", colors = c("blue4", "blue", "green", 
                "yellow", "orange", "red", "red", "red", "red", "red"),
                zauto = F, cmin = 0, cmax = 250)





                share|improve this answer













                The equivalent variables on heatmaps are zauto, zmin, zmax. So the following code should work:



                p <- plot_ly(z = volcano, type = "heatmap", colors = c("blue4", "blue", "green", 
                "yellow", "orange", "red", "red", "red", "red", "red"),
                zauto = F, cmin = 0, cmax = 250)






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 18 '18 at 2:52









                SeayOLearySeayOLeary

                35




                35
































                    draft saved

                    draft discarded




















































                    Thanks for contributing an answer to Stack Overflow!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53310866%2fforcing-scale-on-plotly-heatmap%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    Florida Star v. B. J. F.

                    Danny Elfman

                    Retrieve a Users Dashboard in Tumblr with R and TumblR. Oauth Issues