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static BWImage bwImageFromColumnFloats(float[] cols) { ret bwImageFromColumnFloats(cols, 20); } static BWImage bwImageFromColumnFloats(float[] cols, int h) { if (empty(cols) || h <= 0) null; int w = l(cols); BWImage bw = new(w, h); for x to w: { float f = cols[x]; for y to h: bw.setPixel(x, y, f); } ret bw; }