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Allowing for normalizing across x or y
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0714dc62d0
commit
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@ -116,6 +116,14 @@ class FormFactory(object):
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'black_white']),
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default='fire',
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description=""),
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'normalize_across': SelectField(
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'Normalize Across', choices=self.choicify([
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'heatmap', 'x', 'y']),
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default='heatmap',
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description=(
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"Color will be rendered based on a ratio "
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"of the cell against the sum of across this "
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"criteria")),
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'canvas_image_rendering': SelectField(
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'Rendering', choices=(
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('pixelated', 'pixelated (Sharp)'),
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@ -25,7 +25,11 @@ var color = function(){
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// Returns a linear scaler our of an array of color
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if(!Array.isArray(colors))
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colors = spectrums[colors];
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var ext = d3.extent(data, accessor);
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if(data !== undefined)
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var ext = d3.extent(data, accessor);
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else
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var ext = [0,1];
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var points = [];
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var chunkSize = (ext[1] - ext[0]) / colors.length;
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$.each(colors, function(i, c){
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@ -7,6 +7,7 @@ px.registerViz('heatmap', function(slice) {
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var height = slice.height();
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var hmWidth = width - (margins.l + margins.r)
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var hmHeight = height - (margins.b + margins.t)
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var fp = d3.format('.3p');
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d3.json(slice.jsonEndpoint(), function(error, payload) {
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var matrix = {};
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if (error){
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@ -39,9 +40,7 @@ px.registerViz('heatmap', function(slice) {
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var X = 0, Y = 1;
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var heatmapDim = [xRbScale.domain().length, yRbScale.domain().length];
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var color = px.color.colorScalerFactory(
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fd.linear_color_scheme, data, function(d){return d.v});
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var color = px.color.colorScalerFactory(fd.linear_color_scheme);
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var scale = [
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d3.scale.linear()
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@ -99,6 +98,7 @@ px.registerViz('heatmap', function(slice) {
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s += "<div><b>" + fd.all_columns_x + ": </b>" + obj.x + "<div>"
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s += "<div><b>" + fd.all_columns_y +": </b>" + obj.y + "<div>"
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s += "<div><b>" + fd.metric + ": </b>" + obj.v + "<div>"
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s += "<div><b>%: </b>" + fp(obj.perc) + "<div>"
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return s;
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}
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})
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@ -146,7 +146,7 @@ px.registerViz('heatmap', function(slice) {
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image = context.createImageData(heatmapDim[0], heatmapDim[1]);
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var pixs = {};
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$.each(data, function(i, d) {
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var c = d3.rgb(color(d.v));
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var c = d3.rgb(color(d.perc));
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var x = xScale(d.x);
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var y = yScale(d.y);
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pixs[x + (y*xScale.domain().length)] = c;
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@ -1213,6 +1213,7 @@ class HeatmapViz(BaseViz):
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'linear_color_scheme',
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('xscale_interval', 'yscale_interval'),
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'canvas_image_rendering',
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'normalize_across',
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)
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},)
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def query_obj(self):
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@ -1233,6 +1234,23 @@ class HeatmapViz(BaseViz):
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else:
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df = df[[x, y, v]]
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df.columns = ['x', 'y', 'v']
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norm = fd.get('normalize_across')
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overall = False
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if norm == 'heatmap':
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overall = True
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else:
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gb = df.groupby(norm, group_keys=False)
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if len(gb) <= 1:
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overall = True
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else:
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df['perc'] = (
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gb.apply(
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lambda x: (x.v - x.v.min()) / (x.v.max() - x.v.min()))
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)
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if overall:
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v = df.v
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min_ = v.min()
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df['perc'] = (v - min_) / (v.max() - min_)
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return df.to_json(orient="records")
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