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 QCSPCChart for Javascript
 QCSPCChart for Javascript
 Access Chart Values
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StevenCarleton

USA
7 Posts

Posted - 26 Nov 2018 :  16:17:42  Show Profile  Reply with Quote
We need to store the calculated chart values (Range, Xbar, UCL, LCL, etc.). How can I access these, either on the browser or server side?

Steven Carleton

quinncurtis

1563 Posts

Posted - 27 Nov 2018 :  11:16:09  Show Profile  Reply with Quote
We added the ability to retrieve the HCL, Target and LCL from the Primary and Secondary charts to the latest version of the software, as part of the pushGetJSONOverallStatistics JSNI call. You can download the current version using your original download links. Rename the old GWTJavascript folder before installing it so that it goes into a clean folder, and doesn't just overwrite the old files.

From the current manual, page 388:

pushGetJSONOverallStatistics
The pushGetJSONOverallStatistics returns statistics calculated using all of the data, rather than a single sample interval of data. It returns the overall statistics data in a JSON structure, which can be parsed into a Javascript object. The format of the JSON structure is:

{
"SPCOverallStatistics": {
"ChartType":string,
"NumberOfCharts": int,
"NumberOfSampleIntervals":int,
"PrimaryChart": {
"Mean": double,
"Minimum": double,
"Maximum": double,
"Range": double,
"StandardDevation": double,
"Median": double,
"Variance": double,
"UCL3": double,
"Target": double,
"LCL3": double
},
"SecondaryChart": {
"Mean": double,
"Minimum": double,
"Maximum": double,
"Range": double,
"StandardDevation": double,
"Median": double,
"Variance": double,
"UCL3": double,
"Target": double,
"LCL3": double
},
"ProcessPerformance": {
"Cpk": double,
"Cpm":double,
"Ppk": double,
.
.
.

}
}
}

In actual use, a filled-out SPCOverallStatistics would look like:

{
"SPCOverallStatistics": {
"ChartType": "MEAN_RANGE_CHART",
"NumberOfCharts": 2,
"NumberOfSampleIntervals": 60,
"PrimaryChart": {
"Mean": 29.983142222229475,
"Minimum": 25.482478927553114,
"Maximum": 34.476685371240386,
"Range": 8.994206443687272,
"StandardDeviation": 2.336294386647534,
"Median": 30.082618566756053,
"Variance": 5.458271461080777,
"UCL3": 35.08998767593801,
"Target": 29.983142222229475,
"LCL3": 24.876296768520937
},
"SecondaryChart": {
"Mean": 8.850685361713235,
"Minimum": 3.801051543907956,
"Maximum": 11.593146884947827,
"Range": 7.792095341039872,
"StandardDevation": 2.314209860374365,
"Median": 9.640872833575247,
"Variance": 5.355567277853939,
"UCL3": 18.710348854661777,
"Target": 8.850685361713235,
"LCL3": 0
},
"ProcessPerformance": {
"Cpk": 0.17125640122162375,
"Cpm": 0.3385273201944916,
"Ppk": 0.13191522282471005
}
}
}

The process performance indices will include all process performance indices added to the chart in the charts ProcessCapabilitySetup section of the chart SPCChart.TableSetup.ProcessCapabilitySetup block, as seen below.

"ProcessCapabilitySetup": {
"LSLValue": 27,
"USLValue": 35,
"EnableCPK": true,
"EnableCPM": true,
"EnablePPK": true
}

Example
The pushGetJSONOverallStatistics function is used in the SPCMediumSimple and SPCMediumComplex examples.
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StevenCarleton

USA
7 Posts

Posted - 13 Dec 2018 :  10:32:50  Show Profile  Reply with Quote
So the latest version is JSSPC2DEVRR2x2x3291x4 (version 4?) ??

Is there a readme that summarizes the changes from JSSPC2DEVRR2x2x3291x1?


Steven Carleton
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StevenCarleton

USA
7 Posts

Posted - 13 Dec 2018 :  17:22:25  Show Profile  Reply with Quote
I see now: REVISION.TXT

Steven Carleton
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quinncurtis

1563 Posts

Posted - 14 Dec 2018 :  10:38:02  Show Profile  Reply with Quote
The x4 at the end of the download file is not the revision number, it represents the nth (4th in this case) time you have downloaded the software using your download link.
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