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diff --git a/B_ChannelCoding/B1.slx b/B_ChannelCoding/B1.slx
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diff --git a/B_ChannelCoding/B2.slx b/B_ChannelCoding/B2.slx
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diff --git a/C_BaseBand/C1.slx b/C_BaseBand/C1.slx
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diff --git a/C_BaseBand/C2.slx b/C_BaseBand/C2.slx
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diff --git a/C_BaseBand/show_histogram.m b/C_BaseBand/show_histogram.m
new file mode 100644
index 0000000..e2c9ba1
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+++ b/C_BaseBand/show_histogram.m
@@ -0,0 +1,28 @@
+function show_histogram(histogram,Vmin,Vmax)
+% show_histogram((histogram,Vmin,Vmax) plots in a figure
+% an histogram computed by the Signal Processing Blockset 'Histogram'
+% block and exported to the Matlab Workspace through a 'Signal to
+% Workspace' block. The 'Signal to Workspace' block has to be
+% configured to output a one-dimensional array.
+% 
+% histogram is the name of the variable containing the histogram
+% as a one-dimensional array
+% Vmin, Vmax are, respectively, the minimal input value and
+% the maximal input value, as specified in the dialog box of the
+% 'Histogram' block.
+
+% compatible with Matlab R2012b
+
+if ~isnumeric(histogram)
+    error('histogram is expected to be an array of numbers !');
+end
+if ndims(histogram)>2 || (size(histogram,1)~=1 && size(histogram,2)~=1)
+    error('histogram is expected to be a one-dimensional array !');
+end
+
+Nbins=length(histogram);
+delta=(Vmax-Vmin)/Nbins;
+hx = Vmin+delta/2:delta:Vmax;
+hy = histogram;
+
+bar(hx,hy);
\ No newline at end of file