If this happens, the whole function will fail. Therefore, we need to find a way to recognise the parentheses (may be nested) and then match the operators that are not inside parentheses. Let’s modify our function as follows (in the red square): Theremove_matched_paranthesesfunction is as...
The inefficiency in this loop is the total_attack_avg variable being created with each iteration of the loop. But, this calculation doesn’t change between iterations since it is an overall average. We only need to calculate this value once. By moving this calculation outside (or above) the...
Python is a wonderful language for scripting and automating workflows and it is packed with useful tools out of the box with thePython Standard Library. A common thing to do, especially for a sysadmin, is to execute shell commands. But what usually will end up in abashorbatchfile, can be ...
MySQL is adding more tools to monitor its internals with every new release, but one thing it still lacks is a way to find out who is locking what, and therefore which transactions block which other ones. This is such a vital feature that I’m considering writing my own patch to the sou...
SELECTseries,MIN(value)ASminimum,AVG(q1)ASq1,AVG(median)ASmedian,AVG(q3)ASq3,MAX(value)ASmaximumFROMquartilesGROUPBY1 To see it all together, check out thisquery. Bonus 1: Outliers! If you're using Postgres, you can add outliers—like in the embeddedexampleabove—to your box plot by rep...
avformat_find_stream_info(pFormatContext, NULL);Now we'll loop through all the streams.for (int i = 0; i < pFormatContext->nb_streams; i++) { // }For each stream, we're going to keep the AVCodecParameters, which describes the properties of a codec used by the stream i.AVCodec...
squeezenet_int8 min = 38.52 max = 66.90 avg = 48.52 ... To run benchmarks on a CPU, set the 5th argument to-1. Build for Windows x64 using Visual Studio Community 2017 Download and Install Visual Studio Community 2017 fromhttps://visualstudio.microsoft.com/vs/community/ ...
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For example, if you want to compare two fields,field1andfield2using the$exproperator, the syntax would look like this: db.collection.find({$expr:{$eq:["$field1","$field2"]}}) In this example, we’re using the$eqoperator inside the$exprexpression to check if the values offield1and...
How to Use Metrics for Deep Learning With Keras in Python This can be technically challenging. A much simpler alternative is to use your final model to make a prediction for the test dataset, then calculate any metric you wish using the scikit-learn metrics API. Three metrics, in addit...