ベンフォード分析
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10+
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About this app
Ben and Ford law of thing that "for the most significant digit of the various numerical value, the highest probability that one of 1 to 9 appear, the probability is often that falls closer to 9".
Collection of statistical data, such as accounting data and population is seemingly random, is thought is often as 1 to 9 also for the most significant digit is to appear in uniform in the same probability, but in fact 1 appeared with a probability of about 30% , 9 happens often a phenomenon that there is a bias that less than 5 percent.
By using this property, "which became naturally so (Ben follow Ford's law)," a collection of the number is either "artificially those that have been tampered with (is out of the law of Ben Ford)" or it becomes one of the indicators to determine.
Only only one of the guideline ※, does not guarantee the presence or absence of such tampering.
- When started, the "beginning of the numbers" input screen is displayed.
• When the user presses the "reset" button to clear the input data.
• When the user presses the "« "button to delete the character to the left of the cursor.
• When the user presses the "CSV save" button, and then transition to a CSV file save screen.
• When the user presses the "CSV read" button, and then transition to a CSV file list screen.
- "1" to "9" and presses the button (the input of the most significant digit value), and add that number to the input data.
Please enter the most significant digit of the value of all numbers to be continuous.
• When you press the "Input List" button, a transition to the input data list screen.
• When you press the "Result List" button, the frequency of each of the top value from the input data, you can compare the theoretical value of the ratio and Benford's Law.
• When the user presses the "graph" button, you can compare the theoretical value of the ratio and Benford's law of each top values in the graph.
Collection of statistical data, such as accounting data and population is seemingly random, is thought is often as 1 to 9 also for the most significant digit is to appear in uniform in the same probability, but in fact 1 appeared with a probability of about 30% , 9 happens often a phenomenon that there is a bias that less than 5 percent.
By using this property, "which became naturally so (Ben follow Ford's law)," a collection of the number is either "artificially those that have been tampered with (is out of the law of Ben Ford)" or it becomes one of the indicators to determine.
Only only one of the guideline ※, does not guarantee the presence or absence of such tampering.
- When started, the "beginning of the numbers" input screen is displayed.
• When the user presses the "reset" button to clear the input data.
• When the user presses the "« "button to delete the character to the left of the cursor.
• When the user presses the "CSV save" button, and then transition to a CSV file save screen.
• When the user presses the "CSV read" button, and then transition to a CSV file list screen.
- "1" to "9" and presses the button (the input of the most significant digit value), and add that number to the input data.
Please enter the most significant digit of the value of all numbers to be continuous.
• When you press the "Input List" button, a transition to the input data list screen.
• When you press the "Result List" button, the frequency of each of the top value from the input data, you can compare the theoretical value of the ratio and Benford's Law.
• When the user presses the "graph" button, you can compare the theoretical value of the ratio and Benford's law of each top values in the graph.
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This app may collect these data types
Device or other IDs
Data isn’t encrypted
Data can’t be deleted
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Android 6以上対応
