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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Bug in bar plot, leading zeros in data (bar heights) are ignored.","articleBody":"The bar plot function seems to ignore bar heights that are zero. For example, the data set called \"freq1\" does _not_ contain a leading zero and the bar heights are correct. The data set \"freq2\" contains a leading zeros, both of which are ignored in the bar plot.\n\n```\nimport pylab \nimport numpy as np\nfaces = np.array(range(11)) # the histogram bin faces\nleft_face = faces[:-1]     # the left side face of the cell\nbin_width = faces[1:]-faces[:-1]\nfreq1 = [-2,0,3,4,5,6,7,8,9,12]\nfreq2 = [0,0,3,4,5,6,7,8,9,12] # error with this data set\npylab.bar(left_face, freq1, width=bin_width)\npylab.show()\npylab.bar(left_face, freq2, width=bin_width)\npylab.show()\n```\n","author":{"url":"https://github.com/danieljfarrell","@type":"Person","name":"danieljfarrell"},"datePublished":"2013-06-23T11:59:00.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/2150/matplotlib/issues/2150"}