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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"missing imshow() subplots when using tight_layout()","articleBody":"Hello, I've found an unexpected behavior when I make grids of subplots with imshow and tight_layout the second to last plot is missing, for example:\n\n```\nimport numpy as np\nimport matplotlib.pyplot as plt\nplt.figure()\nfor i in range(16):\n    ax= plt.subplot(4,4 ,i+1)\n    im=ax.imshow(np.random.normal(size=100).reshape([10,10]))\n    plt.tight_layout()\n    plt.title(i)\nplt.savefig(\"imshow_4x4.png\")\n```\n\ngenerates:\n![imshow_4x4](https://cloud.githubusercontent.com/assets/1025951/9416051/5da48e66-4811-11e5-967e-ae4407c1411f.png)\nWhereas the same loop with pcolor works:\n\n```\nimport numpy as np\nimport matplotlib.pyplot as plt\nplt.figure()\nfor i in range(16):\n    ax= plt.subplot(4,4 ,i+1)\n    im=ax.pcolor(np.random.normal(size=100).reshape([10,10]))\n    plt.tight_layout()\n    plt.title(i)\nplt.savefig(\"pcolor_4x4.png\")\n```\n\ngives:\n![pcolor_4x4](https://cloud.githubusercontent.com/assets/1025951/9416047/5bc7e3b8-4811-11e5-8eb8-04c139feae9a.png)\n\nIf I omit the tight_layout() call from the first example it works:\n![imshow_nottight_4x4](https://cloud.githubusercontent.com/assets/1025951/9416171/fe565cf4-4811-11e5-91bb-119411a3caac.png)\n\nI'm using matplotlib 1.4.3 and numpy  1.9.2  in Anaconda 2.2.0. \n","author":{"url":"https://github.com/douglase","@type":"Person","name":"douglase"},"datePublished":"2015-08-21T18:38:28.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":22},"url":"https://github.com/4976/matplotlib/issues/4976"}