kurtosis

Generating numbers (distribution) for a given Kurtosis or skewness

末鹿安然 提交于 2019-12-22 13:05:21
问题 I am new to using Statistical functions in xls. I am able to the KURT function in xls to calculate the Kurtosis or Skewness, given a set of numbers. But my requirement is to do it in the other way, like for a given Skewness or Kurtosis, is there a way to generate random numbers. Any pointers on how to do that. The function should take the skewness or Kurtosis value as input, and it should generate 50 random numbers with 1 being minimum and 100,000 being maximum. If Excel does not have a way,

Generating numbers (distribution) for a given Kurtosis or skewness

夙愿已清 提交于 2019-12-01 11:17:59
I am new to using Statistical functions in xls. I am able to the KURT function in xls to calculate the Kurtosis or Skewness, given a set of numbers. But my requirement is to do it in the other way, like for a given Skewness or Kurtosis, is there a way to generate random numbers. Any pointers on how to do that. The function should take the skewness or Kurtosis value as input, and it should generate 50 random numbers with 1 being minimum and 100,000 being maximum. If Excel does not have a way, I am looking for suggestions in Python. Can you please help me how to do this in Excel or Python? After

How to extend the 'summary' function to include sd, kurtosis and skew?

冷暖自知 提交于 2019-11-29 13:43:59
R's summary function works really well on a dataframe, giving, for example: > summary(fred) sum.count count sum value Min. : 1.000 Min. : 1.0 Min. : 1 Min. : 0.00 1st Qu.: 1.000 1st Qu.: 6.0 1st Qu.: 7 1st Qu.:35.82 Median : 1.067 Median : 9.0 Median : 10 Median :42.17 Mean : 1.238 Mean : 497.1 Mean : 6120 Mean :43.44 3rd Qu.: 1.200 3rd Qu.: 35.0 3rd Qu.: 40 3rd Qu.:51.31 Max. :40.687 Max. :64425.0 Max. :2621278 Max. :75.95 What I'd like to do is modify the function so it also gives, after 'Mean', an entry for the standard deviation, the kurtosis and the skew. What's the best way to do this? I

How to extend the 'summary' function to include sd, kurtosis and skew?

半腔热情 提交于 2019-11-28 07:57:35
问题 R's summary function works really well on a dataframe, giving, for example: > summary(fred) sum.count count sum value Min. : 1.000 Min. : 1.0 Min. : 1 Min. : 0.00 1st Qu.: 1.000 1st Qu.: 6.0 1st Qu.: 7 1st Qu.:35.82 Median : 1.067 Median : 9.0 Median : 10 Median :42.17 Mean : 1.238 Mean : 497.1 Mean : 6120 Mean :43.44 3rd Qu.: 1.200 3rd Qu.: 35.0 3rd Qu.: 40 3rd Qu.:51.31 Max. :40.687 Max. :64425.0 Max. :2621278 Max. :75.95 What I'd like to do is modify the function so it also gives, after