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How do I get the row count of a pandas DataFrame?

...g", setup=lambda n: pd.DataFrame(np.arange(n * 3).reshape(n, 3)), n_range=[2**k for k in range(25)], kernels=[ lambda data: data.shape[0], lambda data: data[0].count(), lambda data: len(data.index), ], labels=["data.shape[0]", "data[0].count()", "len(data....
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Mixing a PHP variable with a string literal

... $bucket = '$node->' . $fieldname . "['und'][0]['value'] = " . '$form_state' . "['values']['" . $fieldname . "']"; print $bucket; yields: $node->mindd_2_study_status['und'][0]['value'] = $form_state['values'] ['mindd_2_study_status'] ...
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Django self-referential foreign key

...ning the model property. If the property were being defined as part of the __init__() or another method, it would be, as self is always the first positional argument to any instance method of a Python class. – Brandon Nov 2 '16 at 12:58 ...
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GitHub clone from pull request?

...sing the -b option and for pull request: git clone https://github.com/user_name/repo_name.git -b feature/pull_request_name dir_name In your case, the branch you want to clone is the source branch of the pull request (feature/mongoose-support): git clone https://github.com/berstend/frappe.git -b ...
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jquery-ui sortable | How to get it work on iPad/touchdevices?

... Tom, I have added following code to mouseProto._touchStart event: var time1Sec; var ifProceed = false, timerStart = false; mouseProto._touchStart = function (event) { var self = this; // Ignore the event if another widget is already being handled if (touchH...
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How to create NS_OPTIONS-style bitmask enumerations in Swift?

...le's documentation about interacting with C APIs, they describe the way NS_ENUM -marked C-style enumerations are imported as Swift enumerations. This makes sense, and since enumerations in Swift are readily provided as the enum value type it's easy to see how to create our own. ...
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Create a tag in a GitHub repository

... tab Click on edit button for the release Provide name of the new tag ABC_DEF_V_5_3_T_2 and hit tab After hitting tab, UI will show this message: Excellent! This tag will be created from the target when you publish this release. Also UI will provide an option to select the branch/commit Select bra...
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How do I include a file over 2 directories back?

...er files, while retaining those links if you move your file, is: require_once($_SERVER['DOCUMENT_ROOT'] . 'directory/directory/file'); DOCUMENT_ROOT is a server variable that represents the base directory that your code is located within. ...
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Replacing Spaces with Underscores

I have a PHP Script that users will enter a name like: Alex_Newton , 12 Answers 12 ...
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Discuz! X3 论坛标题字数突破80的限制 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...,修改语言包文件。 修改的文件一览如下(数据库修改 _forum_post, _forum_rsscache, _forum_thread 这三张表): 下面详细介绍如何修改: 一、数据库修改,修改数据库标题字段的长度为255字符:运行下面的sql语句: (注意修改...