sample-data

问题 I installed the Magento2 open source sample data and everything works fine. When I switch to the luma theme in the admin backend I can see everything. But when I create a custom theme based on luma theme the data/images is not visible anymore. What am I doing wrong? Should it be marked somewhere? 回答1: Ok, I figured it out. I had to make two sql queries in the database because it was a problem with the widgets assigned to the old theme: UPDATE layout_link SET theme_id = '[CUSTOM_THEME_ID]'

问题 I'm looking for a somewhat representative sample test XML file for a typical application. It should contain all typical XML features, such as Elements with and without attributes Text (both structured and unstructured) Namespaces CDATA DTD / Entity declarations Comments Processing instructions And some half-sensible data of around 50kb or more. Does anyone know such a sample document? It should have a license compatible with Apache 2.0 or similar 回答1: You can have a look at XSL examples like

问题 For example: If I want to train a classifier (maybe SVM), how many sample do I need to collect? Is there a measure method for this? 回答1: It is not easy to know how many samples you need to collect. However you can follow these steps: For solving a typical ML problem: Build a dataset a with a few samples, how many? it will depend on the kind of problem you have, don't spend a lot of time now. Split your dataset into train, cross, test and build your model. Now that you've built the ML model,

问题 For example: If I want to train a classifier (maybe SVM), how many sample do I need to collect? Is there a measure method for this? 回答1: It is not easy to know how many samples you need to collect. However you can follow these steps: For solving a typical ML problem: Build a dataset a with a few samples, how many? it will depend on the kind of problem you have, don't spend a lot of time now. Split your dataset into train, cross, test and build your model. Now that you've built the ML model,

问题 How do I "pickle" instances of Django models in a database into sample python code I can use to load sample data? I want to: 1) Take a snapshot of several hundred records that I have stored in a MySQL database for a Django project 2) Take this snapshot and modify the data in it (blanking out names) 3) Transform this data into a "pickled string" or actual python code that I can use to load the data into a new users account. The main feature I'm trying to implement is to select one of my

问题 I have sampled data in the interval [0,1] in an Array transitions=zeros(101,101) which I want to plot as a 3D-histogram. transitions is filled with data similar to the example data provided at the end of this thread. The first columns refers to the first observed variable X , the second column to the second variable Y and the third column is the normalized frequency. I.e. for the first row: the observed normalized frequency of the variable pair (0,0) is 0.9459. The sum of the normalized

问题 I am looking for Free social graph data. I tried to get LiveJournal's but most of the links through google are dead. Essentially, I have to test an application with six degrees of friendships. How and where to get this data? 回答1: Flickr has a good API. You can make up your own little dataset within a couple of hours. 回答2: Checkout the smörgåsbord of datasets at the Stanford Large Network Dataset Collection! 来源： https://stackoverflow.com/questions/4887168/free-social-graph-data

问题 I need to train a cascaded classifier to detect vehicles and different viewing angles. I'm using OpenCV. Some of the angles that I need to capture cause the placement of the vehicle within the image to be diagonal, as shown below: Now the problem with this is that because the vehicle is diagonally placed across the image, then there's a lot of unnecessary background which I can't crop out simply because images have to be rectangular. Is there another way to build positive samples for

问题 I'm looking for sample 1-byte, 2-byte, 3-byte, 4-byte, 5-byte, and 6-byte unicode characters. Any links to some sort of reference of all the different unicode characters out there and how big they are (byte-wise) would be greatly appreciated. I'm hoping this reference also has code points like \uXXXXX . 回答1: Check this out: http://en.wikipedia.org/wiki/List_of_Unicode_characters. Also this: http://www.unicode.org/charts/. 回答2: There is no such thing as "1-byte, 2-byte, 3-byte, 4-byte, 5-byte,

问题 I'm trying to get raw audio data from a file (i'm used to seeing floating point values between -1 and 1). I'm trying to pull this data out of the buffers in real time so that I can provide some type of metering for the app. I'm basically reading the whole file into memory using AudioFileReadPackets. I've create a RemoteIO audio unit to do playback and inside of the playbackCallback, i'm supplying the mData to the AudioBuffer so that it can be sent to hardware. The big problem I'm having is