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Thermometer plot

4.3 | 3 ratings Rate this file 3 Downloads (last 30 days) File Size: 3.34 KB File ID: #12513 Version:
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Thermometer plot


Eric Ludlam (view profile)


03 Oct 2006 (Updated )

Draw a thermometer style plot

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A Thermometer plot, like the ones you see when a small town wants to buy a new ambulance.

MATLAB release MATLAB 7.1.0 (R14SP3)
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Comments and Ratings (5)
27 Oct 2011 wang

wang (view profile)


Comment only
09 May 2007 edvin skaljo

04 Oct 2006 Iram Weinstein

I'm puzzled by the MIN argument
>> thermometer([.1 .2 .3],0.1,1)
??? Error using ==> rectangle
Width and height must be > 0.

also look at odd results from
thermometer([.1 .2 .3],-1,1)

03 Oct 2006 John D'Errico

Much better now. My opinion of thermometer is "warming up". I noticed only one other flaw after a more careful look.

The help shows no indication whether the values plotted will be considered as cumulative numbers or as increments. Thus how will the call

thermometer([.1 .2 .3],0,1)

be interpreted? Thermometer assumes that these numbers are differences, but this assumption is never stated in the help. Never force your users to guess how your code will work. I will always guess incorrectly.

Regardless, I'll give it a 5 rating now and hope the author cleans up this flaw of assumption in the documentation.

03 Oct 2006 John D'Errico

This is a nice addition to our plotting capabilities in Matlab. The obvious bug demands I should give this code a low rating, but I really did like the idea in general. So I'll hope the author chooses to repair these problems. If so, I'll return to do more extensive testing and provide an actual rating.

Problems identified from quick tests:

When called with no outputs, thermometer still returns a figure handle. Far better (and consistent with most Matlab codes) is to add a check like:

% check for no outputs
if (nargout==0)
clear h

Here is the bug:

??? Index exceeds matrix dimensions.

Error in ==> thermometer at 111
surface('xdata', [ 0 1 ] , 'ydata', [ bottom bottom+data(i) ], ...

Comment only
03 Oct 2006

Fix bug when there are more data elements than colors in the axes color order.

01 Sep 2016

Updated license

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