avimallu/r.data.table.funs
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Embarrassing reference to old code.

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avimallu
2020-12-31 17:24:36 +05:30
committed by GitHub
parent 5d9f7d542c
commit 09594f2609
1 changed files with 170 additions and 148 deletions
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70
glean.R
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@@ -3,24 +3,22 @@ library(data.table)
library(bit64)
library(stringi)
library(crayon)
library(glue)
library(numform)
# DT <- data.table(
# logical = sample(c(TRUE, FALSE), 100, replace = TRUE),
# states = state.name,
# species = iris$Species,
# order_of_letters = factor(letters[1:26], ordered = TRUE),
# integral_numbers = as.integer(rnorm(100) * 100),
# numeric_values = rnorm(100) * 100,
# integer64 = as.integer64("231982787612") +
# (as.integer64(rnorm(1e4) * 1000)),
# range_of_date_values = seq.Date(
# as.Date("2019-01-01"), by = "1 month", length.out = 100),
# range_of_time_values =
# as.POSIXct(rnorm(1e4), origin = as.Date("2019-01-01")),
# list_columns_also = list(letters[1:26], LETTERS[1:26], 1:26)
# )
DT <- data.table(
logical = sample(c(TRUE, FALSE), 100, replace = TRUE),
states = state.name,
species = iris$Species,
order_of_letters = factor(letters[1:26], ordered = TRUE),
integral_numbers = as.integer(rnorm(100) * 100),
numeric_values = rnorm(100) * 100,
integer64 = as.integer64("231982787612") +
(as.integer64(rnorm(1e4) * 1000)),
range_of_date_values = seq.Date(
as.Date("2019-01-01"), by = "1 month", length.out = 100),
range_of_time_values =
as.POSIXct(rnorm(1e4), origin = as.Date("2019-01-01")),
list_columns_also = list(letters[1:26], LETTERS[1:26], 1:26)
)
vapply_1c = function (x, fun, ..., use.names = TRUE) {
vapply(X = x, FUN = fun, ..., FUN.VALUE = NA_character_, USE.NAMES = use.names)
@@ -63,6 +61,30 @@ format_lines <- function(lines, classes) {
}
number_format <- function(x) {
number_split <- strsplit(as.character(x), "")
add_underline <- function(s_char) {
for (i in rev(seq_along(s_char))) {
j = length(s_char) - i
if (((j %/% 3) %% 2 != 0)) {
s_char[i] = underline(s_char[i])
}
}
return(s_char)
}
vapply_1c(lapply(number_split, add_underline), paste0, collapse = "")
}
glean_colnames <- function(col_names, col_len) {
paste0(substr(
@@ -76,10 +98,7 @@ glean_values <- function(head, val_len) {
head = as.data.table(head)
numeric_cols = names(which(sapply(head, is.numeric)))
head[, (numeric_cols) := lapply(.SD, function(x) {
x = signif(x, 3)
f_denom(x, mix.denom = TRUE, digits = 2)
}),
head[, (numeric_cols) := lapply(.SD, signif, 3),
.SDcols = numeric_cols]
# browser()
@@ -126,7 +145,7 @@ glean <- function(x) {
classes = vapply_1c(x, function(col) class(col)[1L], use.names=FALSE)
abbs = class_abb[classes]
lines = format_values(
lines = format_lines(
paste0(
" ",
stri_pad(col_nm, col_len, "right"), " ",
@@ -144,5 +163,8 @@ glean <- function(x) {
}
#glean(DT)
#glean(Lahman::People)
glean(DT)
glean(Lahman::People)
print.data.table <- function(x) { print("Hahahahah") }
rm(print.data.table)