Vector.md in red_amber-0.2.1

- old
+ new

@@ -185,24 +185,24 @@
 | Method    |Boolean|Numeric|String|Options|Remarks|
 | ------------ | --- | --- | --- | --- | ----- |
 | ✓ `-@`       |     |  ✓  |     |     |as `-vector`|
 | ✓ `negate`   |     |  ✓  |     |     |`-@`   |
 | ✓ `abs`      |     |  ✓  |     |     |       |
-|[ ]`acos`     |     | [ ] |     |     |       |
-|[ ]`asin`     |     | [ ] |     |     |       |
+| ✓ `acos`     |     |  ✓  |     |     |       |
+| ✓ `asin`     |     |  ✓  |     |     |       |
 | ✓ `atan`     |     |  ✓  |     |     |       |
 | ✓ `bit_wise_not`|  | (✓) |     |     |integer only|
 | ✓ `ceil`     |     |  ✓  |     |     |       |
 | ✓ `cos`      |     |  ✓  |     |     |       |
 | ✓`fill_nil_backward`| ✓ | ✓ | ✓ |    |       |
 | ✓`fill_nil_forward` | ✓ | ✓ | ✓ |    |       |
 | ✓ `floor`    |     |  ✓  |     |     |       |
 | ✓ `invert`   |  ✓  |     |     |     |`!`, alias `not`|
-|[ ]`ln`       |     | [ ] |     |     |       |
-|[ ]`log10`    |     | [ ] |     |     |       |
-|[ ]`log1p`    |     | [ ] |     |     |       |
-|[ ]`log2`     |     | [ ] |     |     |       |
+| ✓ `ln`       |     |  ✓  |     |     |       |
+| ✓ `log10`    |     |  ✓  |     |     |       |
+| ✓ `log1p`    |     |  ✓  |     |     |Compute natural log of (1+x)|
+| ✓ `log2`     |     |  ✓  |     |     |       |
 | ✓ `round`    |     |  ✓  |     | ✓ Round (:mode, :n_digits)|    |
 | ✓ `round_to_multiple`| | ✓ |   | ✓ RoundToMultiple :mode, :multiple| multiple must be an Arrow::Scalar|
 | ✓ `sign`     |     |  ✓  |     |     |       |
 | ✓ `sin`      |     |  ✓  |     |     |       |
 | ✓`sort_indexes`| ✓  | ✓  | ✓  |:order|alias `sort_indices`|
@@ -265,11 +265,11 @@
 | ✓ `is_nan`        |     |  ✓  |     |     |       |
 |[ ]`is_nil`        |  ✓  |  ✓  |  ✓  |[ ] Null|alias `is_null`|
 | ✓ `is_valid`      |  ✓  |  ✓  |  ✓  |     |       |
 | ✓ `less`          |  ✓  |  ✓  |  ✓  |     |`<`, alias `lt`|
 | ✓ `less_equal`    |  ✓  |  ✓  |  ✓  |     |`<=`, alias `le`|
-|[ ]`logb`          |     | [ ] |     |     |       |
+| ✓ `logb`          |     |  ✓  |     |     |logb(b) Compute base `b` logarithm|
 |[ ]`mod`           |     | [ ] |     |     | `%`   |
 | ✓ `multiply`      |     |  ✓  |     |     | `*`   |
 | ✓ `not_equal`     |  ✓  |  ✓  |  ✓  |     |`!=`, alias `ne`|
 | ✓ `or_kleene`     |  ✓  |     |     |     | `\|`  |
 | ✓ `or_org`        |  ✓  |     |     |     |`or` in Red Arrow|
@@ -281,12 +281,10 @@
 
 ### `uniq`
 
   Returns a new array with distinct elements.
 
-(Not impremented functions)
-
 ### `tally` and `value_counts`
 
   Compute counts of unique elements and return a Hash.
 
   It returns almost same result as Ruby's tally. These methods consider NaNs are same.
@@ -306,18 +304,9 @@
 ### `quantiles(probs = [1.0, 0.75, 0.5, 0.25, 0.0], interpolation: :linear, skip_nils: true, min_count: 0)`
 
   Returns quantiles for specified probabilities in a DataFrame.
 
 ### `sort_indexes`, `sort_indices`, `array_sort_indices`
-
-### [ ] `sort`, `sort_by`
-### [ ] argmin, argmax
-### [ ] (array functions)
-### [ ] (strings functions)
-### [ ] (temporal functions)
-### [ ] (conditional functions)
-### [ ] (index functions)
-### [ ] (other functions)
 
 ## Coerce
 
 ```ruby
 vector = RedAmber::Vector.new(1,2,3)