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+## Errata
+
+This file contains errata for the
+["Julia for Data Analysis"](https://www.manning.com/books/julia-for-data-analysis?utm_source=bkamins&utm_medium=affiliate&utm_campaign=book_kaminski2_julia_3_17_22)
+book that has been written by Bogumił Kamiński and has been published by [Manning Publications Co.](https://www.manning.com/)
+
+### Chapter 1, section 1.2.1, page 7
+
+I show the following example of code execution:
+
+```
+julia> function sum_n(n)
+           s = 0
+           for i in 1:n
+               s += i
+           end
+           return s
+       end
+sum_n (generic function with 1 method)
+
+julia> @time sum_n(1_000_000_000)
+  0.000001 seconds
+500000000500000000
+```
+
+This timing is very fast (and the reason is explained in the book).
+The issue is that this is the situation under Julia 1.7.
+
+Under Julia 1.8 and Julia 1.9 running the same code takes longer (tested under Julia 1.9-beta4):
+
+```
+julia> @time sum_n(1_000_000_000)
+  2.265569 seconds
+500000000500000000
+```
+
+The reason for this inconsistency is a bug in the `@time` macro introduced in Julia 1.8 release.
+The `sum_n(1_000_000_000)` call (without `@time`) is executed fast.
+Here is a simplified benchmark (run under Julia 1.9-beta4):
+
+```
+julia> let
+           start = time_ns()
+           v = sum_n(1_000_000_000)
+           stop=time_ns()
+           v, Int(stop - start)
+       end
+(500000000500000000, 1000)
+```
+
+Unfortunately there is an issue with the `@time`
+macro used in global scope, that needs to be resolved in Base Julia.
+See [this issue](https://github.com/JuliaLang/julia/issues/47561).
+
+### Chapter 2, introduction, page 20
+
+* middle of page 20: the provided link http://mng.bz/5mWD explaining *k-times winsorized mean* definition no longer works.
+  Use https://web.archive.org/web/20210804184830/https://v8doc.sas.com/sashtml/insight/chap38/sect17.htm provided by
+  [The Wayback Machine](https://web.archive.org/) instead.
+
+### Chapter 2, section 2.3.1, page 30
+
+I compare the following expressions:
+
+```
+x > 0 && println(x)
+```
+
+and
+
+```
+if x > 0
+    println(x)
+end
+```
+
+where `x = -7`.
+
+I write there that Julia interprets them both in the same way.
+It is true in terms of the fact that in both cases the `println` function is not called (and this is the focus point of the example).
+However, there is a difference in the value of these expressions.
+The first expression evaluates to `false`, while the second evaluates to `nothing`.
+
+Here is how you can check it:
+
+```
+julia> x = -7
+-7
+
+julia> show(x > 0 && println(x))
+false
+julia> show(if x > 0
+           println(x)
+       end)
+nothing
+```
+
+### Chapter 2, section 2.5, page 45
+
+* top of page 45: *use in this book):* should be *use in this book:*
+
+### Chapter 3, section 3.2.3, page 58
+
+* middle of page 58: `y[end - the + 1] = y[end -- k]` should be `y[end - i + 1] = y[end - k]`
+
+### Chapter 3, section 3.2.3, page 59
+
+* top of page 59: `sort(v::AbstractVector; kwthe.)` should be `sort(v::AbstractVector; kws...)`
+
+### Chapter 6, section 6.4.1, page 132
+
+* middle of Listing 6.4: `codeunits("?")` should be `codeunits("ε")`
+
+### Chapter 8, section 8.1.2, page 189
+
+* middle of page 189: `zsdf format` should be `zstd format`
+
+### Chapter 8, section 8.2.1, page 191
+
+* bottom of page 191: `misssingstring` should be `missingstring`
+
+### Chapter 10, section 10.2.2, page 255
+
+* bottom of page 255: `? Error: Error adding value to column :b.` should be `┌ Error: Error adding value to column :b.`
+
+### Chapter 12, section 12.1.4, page 302
+
+* bottom of page 302:
+
+```
+julia> df = DataFrame(a=1:3, b=1:3, c=1:3)
+3×3 DataFrame
+ Row │ a      b      c
+     │ Int64  Int64  Int64
+???????????????????????????
+   1 │     1      1      1
+   2 │     2      2      2
+   3 │     3      3      3
+```
+
+should be
+
+```
+julia> df = DataFrame(a=1:3, b=1:3, c=1:3)
+3×3 DataFrame
+ Row │ a      b      c
+     │ Int64  Int64  Int64
+─────┼─────────────────────
+   1 │     1      1      1
+   2 │     2      2      2
+   3 │     3      3      3
+```
+
+### Chapter 12, section 12.3.2, page 318
+
+* top of page 318: in the annotation to Figure 12.6 there is text *Applies a log1p* which looks like *Applies a loglp*
+  (this is a display issue due to the fact that in the font used letter `l` and digit `1` look identical)