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POHow to manipulate legend in Incanter chart
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copied!<p>I'm trying to include a legend in an Incanter chart, but I'm having some troubles getting what I want:</p> <ol> <li><p>I want to be able to instantiate a chart with no data first (using <code>[] []</code> as my x y arguments), then add the data points in a separate step. However the only way to add a legend is to specify <code>:legend true</code> after the initial x y points are given in the constructor. Cannot specify <code>:legend true</code> without x y arguments, and I have not found any <code>add-legend</code> function.</p></li> <li><p>The legend option captures the code I use when adding the chart data, which means if I don't want ugly code to appear in the legend I have to create a nice-looking vars for the X and Y points, rather than just calling a function in line. </p></li> <li><p>Therefore the legend that is created includes the <code>[][]</code> used when creating the blank plot, it includes the function calls used when getting the data for the points, and it includes the name-mangled anonymous function <code>(fn*[p1__3813#](second p1__3813#))</code> which is non-communicative to consumers of my chart.</p></li> <li><p>I just want to be able to associate a string with each group of points in the legend like in matlab, excel, etc.</p></li> </ol> <p>Here is my current code;</p> <pre><code>(def lux-ratios-plot (doto (scatter-plot [] [] :legend true :title "Lux/CH0 vs. CH1/CH0" :x-label "CH1/CH0" :y-label "Lux/CH0") (view))) (doseq [dut [incs hals cfls leds]] (add-points lux-ratios-plot (get-vals :CH1/CH0 dut) (get-vals :Lux/CH0 dut) :points true)) ; Show the trend line for each bulb (doseq [fit [inc-fit hal-fit cfl-fit led-fit]] (add-lines lux-ratios-plot (map #(second %) (:x fit)) (:fitted fit))) </code></pre> <p>Therefore is there any way in Incanter plots to specify a legend string with each <code>(add-lines ...)</code> or <code>(add-points ...)</code> call?</p> <p>Thanks a lot</p> <p>Michael</p>

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