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I am building a library management system using Visual Studio C++/CLI Windows Forms and MySQL integration. I am planning to store the data of books locally on the system where the application is installed in an MYSQL schema. I am able to understand how to get such data of books and store them in that.Read more

I tried to download a lot of Financial Data Time series of different financial assets (Exchange, Commodity, Index, Stocks, etc etc…). In the most part of cases, I try to found, and download it, supposing their name, for example, watching their official “thicker” on various web site, and in the most part of the case,Read more

me gustaría hacer un DataSet utilizando un procedimiento almacenado con columnas dinámicas para utilizarlo al generar reportes. El problema es que por lo que he visto sólo hacen DataSets sabiendo la cantidad de columnas de ante mano para asignarle el nombre y tipo de dato. Es posible hacer un DataSet sin saber el número deRead more

Suppose I have a dataset with a header row. ds = Dataset[AssociationThread[{“x”, “y”, “z”}, #] & /@ RandomReal[{0, 1}, {10, 3}]]; I want to construct the following dataset of means and variances. Note the header row and the stub column.) Dataset[<|”mean” -> Normal@ds[Mean], “var” -> Normal@ds[Variance]|>] How can I construct that with a single queryRead more

Есть DataSet с двумя DataTable в нем. В каждой DataTable есть колонка Name(уникальная внутри таблицы). Можно ли привязать одну таблицу к другой, чтобы данные некоторых колонок копировались в соответствующие колонки второй таблицы? А также автоматически изменялись во второй таблице при их изменении в первой.Read more

Can anyone help me with a freely available dataset, which I can use to create a machine learning prototype in the Retail / SCM / Logistics domain? The problem I’m looking to solve is: Inventory Forecasting using ML Preferred size of dataset: few 100k records. Thanks, KapilRead more

Is it possible to run multiple SQL Queries pointing multiple tables in single SSRS Dataset having same Data source ? For example : Dataset text can I input below query and make the SSRS Report work with different tables and different schemas ? select name , office , id , firstlineid …… from schema2 .Read more

I’m supposed to classify a MNIST dataset (done). There are of course some wrong classification. I’m asked to remove data objects that I think is useless for classifying this dataset in the training phase. I’ve seen the confusion matrix and know that there are some instances that are wrongly classified. How can I deal withRead more

estoy buscando si alguien conoce algún dataset en Python que tenga así imagenes random de estoy haciendo un modelo para detectar rostros pero me hacen falta imágenes que no sean rostros, gracias.Read more

I read in my data using: dat=Dataset[Import[“dat.csv”]] When I view the data it appears correct. However, when I execute a command like dat[1, “Colname1″] I receive the error: Message: Part Colname 1 is not applicable to expressions of the form {_String, _, _String, \”country” | “NA” | “us”, _, _, _String, _String, _, _String, _String,Read more