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diff --git a/processing/join_example.py b/processing/join_example.py
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+++ b/processing/join_example.py
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+"""Join example."""
+
+
+# --- import --------------------------------------------------------------------------------------
+
+
+import os
+
+import WrightTools as wt
+
+import numpy as np
+
+import matplotlib.pyplot as plt
+
+
+# --- define and import ---------------------------------------------------------------------------
+
+
+here = os.path.abspath(os.path.dirname(__file__))
+
+p = os.path.join(here, 'MX2_TSF.wt5')
+root = wt.open(p)
+divided = root.processed_tsf.divided_tsf
+
+def individual_plotter(gs, d, j):
+    ax = plt.subplot(gs[0,j])
+    ax.pcolor(d)
+    ax.grid()
+    wt.artists.set_ax_labels(ax=ax, xlabel=d.w1.label, ylabel=d.w2.label)
+
+    # join
+ds = [divided[0], divided[1], divided[2]]
+joined = wt.data.join(ds, parent=divided, )
+# pretty up indivudal
+for d in ds:
+    d.transform('w1', 'w2')
+    d.sig.clip(0,4)
+# pretty up joined
+joined.sig.clip(0,4)
+joined.transform('w1', 'w2')
+
+
+# --- workspace -----------------------------------------------------------------------------------
+
+
+# instantiate figure
+fig, gs = wt.artists.create_figure(width='double', nrows=3, cols=[1,'cbar',1,'cbar',1,'cbar'], hspace=.75, wspace=.35)
+# plot indiviudal data
+d = divided[0]
+individual_plotter(gs, d, 0)
+d = divided[1]
+individual_plotter(gs, d, 2)
+d = divided[2]
+individual_plotter(gs, d, 4)
+# plot joined data
+ax = plt.subplot(gs[1:,:-1])
+ax.pcolor(joined)
+ax.grid()
+wt.artists.set_ax_labels(ax=ax, xlabel=d.w1.label, ylabel=d.w2.label)
+# colorbar
+cax = plt.subplot(gs[:,-1]) 
+ticks = np.linspace(joined.sig.min(), joined.sig.max(), 11)
+label = 'TSF amplitude'
+wt.artists.plot_colorbar(cax=cax, ticks=ticks, label=label)