forcing scale on plotly heatmap












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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?










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    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






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      asked Nov 15 '18 at 0:41









      SeayOLearySeayOLeary

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          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)





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            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)





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              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)





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                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












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                share|improve this answer










                answered Nov 18 '18 at 2:52









                SeayOLearySeayOLeary

                35




                35
































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