start of multiflex

rowers/interactiveplots.py

@@ -69,7 +69,27 @@ watermarkw = 184
 watermarkh = 35
 watermarkanchor = 'bottom_right'
 
+def errorbar(fig, x, y, xerr=None, yerr=None, color='red', 
+             point_kwargs={}, error_kwargs={}):
 
+    fig.circle(x, y, color=color, **point_kwargs)
+    
+    if xerr:
+        x_err_x = []
+        x_err_y = []
+        for px, py, err in zip(x, y, xerr):
+            x_err_x.append((px - err, px + err))
+            x_err_y.append((py, py))
+        fig.multi_line(x_err_x, x_err_y, color=color, **error_kwargs)
+
+    if yerr:
+        y_err_x = []
+        y_err_y = []
+        for px, py, err in zip(x, y, yerr):
+            y_err_x.append((px, px))
+            y_err_y.append((py - err, py + err))
+        fig.multi_line(y_err_x, y_err_y, color=color, **error_kwargs)
+      
 def tailwind(bearing,vwind,winddir):
     """ Calculates head-on head/tailwind in direction of rowing