Nothing
tests/testthat/_snaps/write-parquet-statistics.md
In nanoparquet: Read and Write 'Parquet' Files
null_count is written
Code
as.data.frame(read_parquet_metadata(tmp)[["column_chunks"]][, c("row_group",
"column", "null_count")])
Output
row_group column null_count
1 0 0 1
2 0 1 1
3 0 2 1
4 0 3 1
5 0 4 1
6 0 5 1
7 0 6 1
8 0 7 1
9 0 8 1
10 0 9 1
11 0 10 0
12 0 11 0
13 0 12 0
14 1 0 0
15 1 1 0
16 1 2 0
17 1 3 0
18 1 4 0
19 1 5 0
20 1 6 0
21 1 7 0
22 1 8 0
23 1 9 0
24 1 10 1
25 1 11 1
26 1 12 1
27 2 0 0
28 2 1 0
29 2 2 0
30 2 3 0
31 2 4 0
32 2 5 0
33 2 6 0
34 2 7 0
35 2 8 0
36 2 9 0
37 2 10 0
38 2 11 0
39 2 12 0
40 3 0 0
41 3 1 0
42 3 2 0
43 3 3 0
44 3 4 0
45 3 5 0
46 3 6 0
47 3 7 0
48 3 8 0
49 3 9 0
50 3 10 0
51 3 11 0
52 3 12 0
min/max for integers
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for DATEs
Code
do()
Output
[[1]]
name r_type type type_length repetition_type converted_type logical_type
1 schema <NA> <NA> NA <NA> <NA>
2 day Date INT32 NA OPTIONAL DATE DATE
3 count integer INT32 NA REQUIRED INT_32 INT, 32,....
num_children scale precision field_id
1 2 NA NA NA
2 NA NA NA NA
3 NA NA NA NA
[[2]]
[1] "2024-09-06" "2024-09-08" "2024-09-10" "2024-09-12" "2024-09-14"
[[3]]
[1] "2024-09-07" "2024-09-09" "2024-09-11" "2024-09-13" "2024-09-15"
min/max for double -> signed integers
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for double -> unsigned integers
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 1 0 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 1 0 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 1 0 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 1 0 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
minmax for double -> INT32 TIME(MULLIS)
Code
do(compression = "snappy")
Output
[[1]]
[1] 1000 -100000 -1000000 NA
[[2]]
[1] 5000 100000 1000000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1000 -100000 -1000000 NA
[[2]]
[1] 5000 100000 1000000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1000 -100000 -1000000 NA
[[2]]
[1] 5000 100000 1000000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1000 -100000 -1000000 NA
[[2]]
[1] 5000 100000 1000000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for DOUBLE
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for FLOAT
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for integer -> INT64
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for REALSXP -> INT64
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for STRING
Code
do(compression = "snappy")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "snappy", type = "JSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed", type = "JSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy", type = "JSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed", type = "JSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "snappy", type = "BSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed", type = "BSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy", type = "BSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed", type = "BSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "snappy", type = "ENUM")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed", type = "ENUM")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy", type = "ENUM")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed", type = "ENUM")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for REALSXP -> TIMESTAMP (INT64)
Code
do(compression = "snappy")
Output
[[1]]
[1] 1e+06 -1e+08 -1e+09 NA
[[2]]
[1] 5e+06 1e+08 1e+09 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1e+06 -1e+08 -1e+09 NA
[[2]]
[1] 5e+06 1e+08 1e+09 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Try the nanoparquet package in your browser
Any scripts or data that you put into this service are public.
nanoparquet documentation built on April 3, 2025, 11:26 p.m.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
null_count is written
Code
as.data.frame(read_parquet_metadata(tmp)[["column_chunks"]][, c("row_group",
"column", "null_count")])
Output
row_group column null_count
1 0 0 1
2 0 1 1
3 0 2 1
4 0 3 1
5 0 4 1
6 0 5 1
7 0 6 1
8 0 7 1
9 0 8 1
10 0 9 1
11 0 10 0
12 0 11 0
13 0 12 0
14 1 0 0
15 1 1 0
16 1 2 0
17 1 3 0
18 1 4 0
19 1 5 0
20 1 6 0
21 1 7 0
22 1 8 0
23 1 9 0
24 1 10 1
25 1 11 1
26 1 12 1
27 2 0 0
28 2 1 0
29 2 2 0
30 2 3 0
31 2 4 0
32 2 5 0
33 2 6 0
34 2 7 0
35 2 8 0
36 2 9 0
37 2 10 0
38 2 11 0
39 2 12 0
40 3 0 0
41 3 1 0
42 3 2 0
43 3 3 0
44 3 4 0
45 3 5 0
46 3 6 0
47 3 7 0
48 3 8 0
49 3 9 0
50 3 10 0
51 3 11 0
52 3 12 0
min/max for integers
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for DATEs
Code
do()
Output
[[1]]
name r_type type type_length repetition_type converted_type logical_type
1 schema <NA> <NA> NA <NA> <NA>
2 day Date INT32 NA OPTIONAL DATE DATE
3 count integer INT32 NA REQUIRED INT_32 INT, 32,....
num_children scale precision field_id
1 2 NA NA NA
2 NA NA NA NA
3 NA NA NA NA
[[2]]
[1] "2024-09-06" "2024-09-08" "2024-09-10" "2024-09-12" "2024-09-14"
[[3]]
[1] "2024-09-07" "2024-09-09" "2024-09-11" "2024-09-13" "2024-09-15"
min/max for double -> signed integers
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for double -> unsigned integers
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 1 0 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 1 0 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 1 0 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 1 0 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
minmax for double -> INT32 TIME(MULLIS)
Code
do(compression = "snappy")
Output
[[1]]
[1] 1000 -100000 -1000000 NA
[[2]]
[1] 5000 100000 1000000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1000 -100000 -1000000 NA
[[2]]
[1] 5000 100000 1000000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1000 -100000 -1000000 NA
[[2]]
[1] 5000 100000 1000000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1000 -100000 -1000000 NA
[[2]]
[1] 5000 100000 1000000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for DOUBLE
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for FLOAT
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for integer -> INT64
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for REALSXP -> INT64
Code
do(compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] 1 -100 -1000 NA
[[2]]
[1] 5 100 1000 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for STRING
Code
do(compression = "snappy")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "snappy", type = "JSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed", type = "JSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy", type = "JSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed", type = "JSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "snappy", type = "BSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed", type = "BSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy", type = "BSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed", type = "BSON")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "snappy", type = "ENUM")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed", type = "ENUM")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "snappy", type = "ENUM")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(encoding = "RLE_DICTIONARY", compression = "uncompressed", type = "ENUM")
Output
[[1]]
[1] "a" "!!!" "!" NA
[[2]]
[1] "e" "~~~" "~" NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
min/max for REALSXP -> TIMESTAMP (INT64)
Code
do(compression = "snappy")
Output
[[1]]
[1] 1e+06 -1e+08 -1e+09 NA
[[2]]
[1] 5e+06 1e+08 1e+09 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Code
do(compression = "uncompressed")
Output
[[1]]
[1] 1e+06 -1e+08 -1e+09 NA
[[2]]
[1] 5e+06 1e+08 1e+09 NA
[[3]]
[1] TRUE TRUE TRUE NA
[[4]]
[1] TRUE TRUE TRUE NA
Try the nanoparquet package in your browser
Any scripts or data that you put into this service are public.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Embedding an R snippet on your website
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.