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Some Datavard Insights analyses support prediction of future values. Prediction of values can be time consuming task that is always executed in background directly on the system. DataVard Datavard Insights solution currently supports prediction calculation using R language via OpenCPU server HTTP API (https://www.opencpu.org/).
OpenCPU server can be installed on premise or can be accessed externally if security restrictions allow that. To install OpenCPU server, please refer to OpenCPU installation guide. Recommended version of OpenCPU server should be always used.
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Insights solution uses custom prediction R script to predict time series data. For correct execution of the script, following R library packages must be available on OpenCPU server:
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Insights analyses use prediction functionality automatically when available. The This availability is determined by the presence of valid OpenCPU server URL in DataVard Datavard Reuse Library settings on the central system. To change the URL to OpenCPU server user , you should execute the program "/DVD/RL_R_SETTINGS". Setting "OpenCPU server URI" can be changed by clicking on "Edit" button.
Specified value should look like: http://192.168.48.205:8886
User You should test the accessibility and presence of required R library packages by testing OpenCPU server URL concatenated with "/ocpu/library/" path using standard report "RSWF_TEST_HTTP". HTTP test should end with status_code 200 and required library packages should be present in returned list.
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