sample

问题 I am trying to set up the WSO2 Endpoint look-up sample. I have made the changes according to the documentation, but when I try to build the app using "mvn clean install" I am receiving the following error: Downloading: http://maven.wso2.org/nexus/content/groups/wso2-public/eclipse/vali dateutility/0.95/validateutility-0.95.pom [WARNING] Checksum validation failed, expected 53f8bac71524372a3d51a6ecf11365042 96f37af but is 8edc83998e0bf2a8867395883f3853eb901be267 for http://maven.wso2.or g

问题 I use ffmpeg to decode audio and use libmp3lame to encode it into mp3. As libmp3lame inside ffmpeg needs S16P instead of S16, I have to convert audio samples. I tried using swr_convert but everytime I get a random crash. I started to have doubt if swr_convert accepts S16 as input or not. So, how can I convert audio samples from AV_SAMPLE_FMT_S16 to AV_SAMPLE_FMT_S16P? 来源： https://stackoverflow.com/questions/18131389/how-to-convert-av-sample-fmt-s16-to-av-sample-fmt-s16p

问题 I want to make 20000 sample from a data which is quite big,based on the each value size in order to fill the NA values: so I use the output of histogram, but it wasn't successful, and get me an error, how to avoid it ? y=hist(maindata,col="red",breaks=length(unique(maindata)) for(k in 1:20000){ data=maindata for(i in 1:nrow(data)){ if (data[i]="Na"){ data[i]=sample(y$breaks,size=1,replace=FALSE,prob=y$density)}}} I get this error : Error in sample.int(length(x), size, replace, prob) :

问题 I am trying to test out the Google App Engine. I have created an appspot domain, downloaded the sample project and put in all credentials required. I have also enabled Google Cloud Messaging for Android. When I hit the send button (in the samples GuestBookActivity), I get the message: "The backend is locked down. The administrator can change the authentication/authorization settings on [my appspot domain]". Does anyone know about this issue and how to resolve it? 回答1: As @Peter Knego said,

问题 I am using amazon dynamodb and accessing it via the python boto query interface. I have a very simple requirement I want to get 1000 entries. But I don't know the primary keys beforehand. I just want to get 1000 entries. How can I do this? ...I know how to use the query_2 but that requires knowing primary keys beforehand. And maybe afterwards I want to get another different 1000 and go on like that. You can consider it as sampling without replacement.How can I do this? Any help is much

问题 As the cutil.h header is removed from CUDA Samples, some new headers are introduced like helper_cuda.h, helper_functions.h. One of the main keywords that is used by me was CUDA_CHECK_ERROR, and I think it is replaced with checkCudaErrors. In most of my code the macro compiles and works well. However when I use it in a class which has a function named check(..), checkCudaErrors function gives compile errors. Here is an example: #include <stdio.h> #include <cuda_runtime.h> #include <helper_cuda

问题 I have a cell array in matlab and I need to take a random sample, however the randsample() function in matlab appears not to work on cell arrays. I can generate random numbers using randi() which is fine, however I want only unique numbers. Is there a function that can be used to randomly sample from a cell array, or can anyone show me how to generate unique numbers using randi()? Thanks very much. 回答1: You can use the randperm function which generates a random permutation without repeat of

问题 This question already has answers here : Google OAuth 2 authorization - Error: redirect_uri_mismatch (35 answers) Closed 5 years ago . I need to use OAuth2 so I wish to develop through App Engine and Python since Google offers sample-code that should make the process easy: https://developers.google.com/api-client-library/python/guide/aaa_oauth https://code.google.com/p/google-api-python-client/downloads/list It should be simple; just download the files, set the application name in app.yaml

问题 I want to store additional information on my users (address, phone). Should I extend the registration page on the sample mvc template or should I set up a separate "profile" table and have that be a separate page? It seems nice to do it on the registration page, but I am not sure if there are issues playing around with the "aspnet_"... tables that are setup for registration. Any suggestions? I would like to use LINQ to SQL as well if possible but I see the default implementation is using

问题 I don't know if anyone ELSE has noticed this, but I noticed the jQuery samples I see on MS tend to use a different format: <script type="text/javascript"> $( domReady ); function domReady() { $('#btn').click( showMessage ); } function showMessage() { $('#message').fadeIn('slow'); } </script> Isn't this the same as: $(document).ready( function() { $('#btn').click( showMessage ); function showMessage() { $('#message').fadeIn('slow'); } }); Is there any advantage of using one syntax over the