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update histogram, nth documentation
This commit is contained in:
Sebastian Jung
parent
0845572878
commit
5bdda06ca6
@ -17,156 +17,64 @@ Let's say we have this file `random_numers.csv` which contains 50 random numbers
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```shell
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> open random_numbers.csv
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━━━━┯━━━━━━━━━━━━━━━
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# │ random number
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────┼───────────────
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0 │ 87
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1 │ 46
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2 │ 39
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open random_numbers2.csv
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━━━━┯━━━━━━━━━━━━━━━━
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# │ random numbers
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────┼────────────────
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0 │ 0
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1 │ 5
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2 │ 5
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...
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47 │ 94
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48 │ 61
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49 │ 67
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━━━━┷━━━━━━━━━━━━━━━
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47 │ 0
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48 │ 2
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49 │ 4
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━━━━┷━━━━━━━━━━━━━━━━
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```
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If we now want to see how often the different numbers were generated, we can use the `histogram` function:
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```shell
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> open random_numbers.csv | histogram "random number"
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━━━━┯━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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# │ random number │ frecuency
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────┼───────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────
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0 │ 10 │ *************************
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1 │ 14 │ **************************************************
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2 │ 17 │ *************************
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3 │ 22 │ *************************
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4 │ 24 │ *************************
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5 │ 28 │ *************************
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6 │ 29 │ *************************
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7 │ 31 │ *************************
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8 │ 37 │ *************************
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9 │ 38 │ *************************
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10 │ 39 │ *************************
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11 │ 45 │ *************************
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12 │ 46 │ ***************************************************************************
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13 │ 49 │ *************************
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14 │ 5 │ *************************
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15 │ 51 │ ***************************************************************************
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16 │ 52 │ *************************
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17 │ 55 │ *************************
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18 │ 56 │ **************************************************
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19 │ 60 │ *************************
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20 │ 61 │ **************************************************
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21 │ 64 │ *************************
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22 │ 65 │ *************************
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23 │ 67 │ **************************************************
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24 │ 68 │ *************************
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25 │ 73 │ *************************
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26 │ 80 │ **************************************************
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27 │ 82 │ *************************
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28 │ 86 │ ****************************************************************************************************
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29 │ 87 │ **************************************************
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30 │ 88 │ *************************
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31 │ 89 │ *************************
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32 │ 9 │ *************************
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33 │ 92 │ *************************
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34 │ 94 │ *************************
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35 │ 96 │ *************************
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36 │ 99 │ *************************
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━━━━┷━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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> open random_numbers2.csv | histogram "random numbers"
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━━━┯━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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# │ random numbers │ frequency
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───┼────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────
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0 │ 0 │ ****************************************************************************************************
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1 │ 1 │ ******************************
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2 │ 2 │ *************************************************************
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3 │ 3 │ *********************************************************************
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4 │ 4 │ *****************************************************
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5 │ 5 │ *********************************************************************
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━━━┷━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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```
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We can also set the name of the second column or sort the table:
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```shell
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> open random_numbers.csv | histogram "random number" probability
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━━━━┯━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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# │ random number │ probability
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────┼───────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────
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0 │ 10 │ *************************
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1 │ 14 │ **************************************************
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2 │ 17 │ *************************
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3 │ 22 │ *************************
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4 │ 24 │ *************************
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5 │ 28 │ *************************
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6 │ 29 │ *************************
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7 │ 31 │ *************************
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8 │ 37 │ *************************
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9 │ 38 │ *************************
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10 │ 39 │ *************************
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11 │ 45 │ *************************
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12 │ 46 │ ***************************************************************************
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13 │ 49 │ *************************
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14 │ 5 │ *************************
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15 │ 51 │ ***************************************************************************
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16 │ 52 │ *************************
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17 │ 55 │ *************************
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18 │ 56 │ **************************************************
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19 │ 60 │ *************************
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20 │ 61 │ **************************************************
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21 │ 64 │ *************************
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22 │ 65 │ *************************
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23 │ 67 │ **************************************************
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24 │ 68 │ *************************
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25 │ 73 │ *************************
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26 │ 80 │ **************************************************
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27 │ 82 │ *************************
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28 │ 86 │ ****************************************************************************************************
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29 │ 87 │ **************************************************
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30 │ 88 │ *************************
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31 │ 89 │ *************************
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32 │ 9 │ *************************
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33 │ 92 │ *************************
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34 │ 94 │ *************************
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35 │ 96 │ *************************
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36 │ 99 │ *************************
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━━━━┷━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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> open random_numbers2.csv | histogram "random numbers" probability
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━━━┯━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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# │ random numbers │ probability
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───┼────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────
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0 │ 0 │ ****************************************************************************************************
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1 │ 1 │ ******************************
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2 │ 2 │ *************************************************************
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3 │ 3 │ *********************************************************************
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4 │ 4 │ *****************************************************
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5 │ 5 │ *********************************************************************
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━━━┷━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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```
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```shell
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> open random_numbers.csv | histogram "random number" probability | sort-by probability
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━━━━┯━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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# │ random number │ probability
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────┼───────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────
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0 │ 10 │ *************************
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1 │ 17 │ *************************
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2 │ 22 │ *************************
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3 │ 24 │ *************************
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4 │ 28 │ *************************
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5 │ 29 │ *************************
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6 │ 31 │ *************************
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7 │ 37 │ *************************
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8 │ 38 │ *************************
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9 │ 39 │ *************************
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10 │ 45 │ *************************
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11 │ 49 │ *************************
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12 │ 5 │ *************************
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13 │ 52 │ *************************
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14 │ 55 │ *************************
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15 │ 60 │ *************************
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16 │ 64 │ *************************
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17 │ 65 │ *************************
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18 │ 68 │ *************************
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19 │ 73 │ *************************
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20 │ 82 │ *************************
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21 │ 88 │ *************************
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22 │ 89 │ *************************
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23 │ 9 │ *************************
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24 │ 92 │ *************************
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25 │ 94 │ *************************
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26 │ 96 │ *************************
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27 │ 99 │ *************************
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28 │ 14 │ **************************************************
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29 │ 56 │ **************************************************
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30 │ 61 │ **************************************************
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31 │ 67 │ **************************************************
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32 │ 80 │ **************************************************
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33 │ 87 │ **************************************************
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34 │ 46 │ ***************************************************************************
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35 │ 51 │ ***************************************************************************
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36 │ 86 │ ****************************************************************************************************
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━━━━┷━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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> open random_numbers2.csv | histogram "random numbers" probability | sort-by probability
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━━━┯━━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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# │ random numbers │ probability
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───┼────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────────
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0 │ 1 │ ******************************
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1 │ 4 │ *****************************************************
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2 │ 2 │ *************************************************************
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3 │ 3 │ *********************************************************************
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4 │ 5 │ *********************************************************************
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5 │ 0 │ ****************************************************************************************************
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━━━┷━━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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```
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@ -3,10 +3,13 @@
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This command returns the nth row of a table, starting from 0.
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If the number given is less than 0 or more than the number of rows, nothing is returned.
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## Usage
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### Usage
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```shell
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> [input-command] | nth [row-number]
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> [input-command] | nth <row number> ...args
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```
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### Parameters:
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* `<row number>` the number of the row to return
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* `args`: Optionally return more rows
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## Examples
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```shell
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@ -21,11 +24,19 @@ If the number given is less than 0 or more than the number of rows, nothing is r
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━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━┷━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━
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> ls | nth 0
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━━━━━━━━━━━━┯━━━━━━┯━━━━━━━━━━┯━━━━━━━━┯━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━
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name │ type │ readonly │ size │ accessed │ modified
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────────────┼──────┼──────────┼────────┼───────────────┼───────────────
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Cargo.toml │ File │ │ 239 B │ 2 minutes ago │ 2 minutes ago
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━━━━━━━━━━━━┷━━━━━━┷━━━━━━━━━━┷━━━━━━━━┷━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━
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━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━┯━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━
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# │ name │ type │ readonly │ size │ accessed │ modified
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───┼────────────┼───────────┼──────────┼────────┼───────────────┼───────────────
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0 │ Cargo.toml │ File │ │ 239 B │ 2 minutes ago │ 2 minutes ago
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━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━┷━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━
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> ls | nth 0 2
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━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━┯━━━━━━━━━━┯━━━━━━━━┯━━━━━━━━━━━━━━━┯━━━━━━━━━━━━━━━
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# │ name │ type │ readonly │ size │ accessed │ modified
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───┼────────────┼───────────┼──────────┼────────┼───────────────┼───────────────
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0 │ Cargo.toml │ File │ │ 239 B │ 2 minutes ago │ 2 minutes ago
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2 │ .gitignore │ File │ │ 19 B │ 2 minutes ago │ 2 minutes ago
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━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━┷━━━━━━━━━━┷━━━━━━━━┷━━━━━━━━━━━━━━━┷━━━━━━━━━━━━━━━
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> ls | nth 5
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```
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