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Remove columns from dataframe where ALL values are NA
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160
Try this:
df <- df[,colSums(is.na(df))<nrow(df)]
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How to set tbody height with overflow scroll
... ,tr td{
border:1px solid red
}
tbody {
display:block;
height:50px;
overflow:auto;
}
thead, tbody tr {
display:table;
width:100%;
table-layout:fixed;/* even columns width , fix width of table too*/
}
thead {
width: calc( 100% - 1em )/* scrollbar is average 1em/16px wi...
How can I add a vertical scrollbar to my div automatically?
... make the overflow: auto; property work.
For testing purpose, add height: 100px; and check.
and also it will be better if you give overflow-y:auto; instead of overflow: auto;, because this makes the element to scroll only vertical but not horizontal.
float:left;
width:1000px;
overflow-y: auto;
heig...
How to vertically center content with variable height within a div?
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Just add
position: relative;
top: 50%;
transform: translateY(-50%);
to the inner div.
What it does is moving the inner div's top border to the half height of the outer div (top: 50%;) and then the inner div up by half its height (transform: translateY(-50%)...
Fixed position but relative to container
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420
Short answer: no. (It is now possible with CSS transform. See the edit below)
Long answer: The ...
Display / print all rows of a tibble (tbl_df)
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You could also use
print(tbl_df(df), n=40)
or with the help of the pipe operator
df %>% tbl_df %>% print(n=40)
To print all rows specify tbl_df %>% print(n = Inf)
share
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Which @NotNull Java annotation should I use?
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+50
Since JSR 305 (whose goal was to standardize @NonNull and @Nullable) has been dormant for several years, I'm afraid there is no good a...
How to upgrade all Python packages with pip?
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answered Aug 10 '10 at 19:56
rbprbp
36.8k33 gold badges3232 silver badges2727 bronze badges
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How do I update Ruby Gems from behind a Proxy (ISA-NTLM)
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20 Answers
20
Active
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How to test if string exists in file with Bash?
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grep -Fxq "$FILENAME" my_list.txt
The exit status is 0 (true) if the name was found, 1 (false) if not, so:
if grep -Fxq "$FILENAME" my_list.txt
then
# code if found
else
# code if not found
fi
Explanation
Here are the relevant sections of the man page for grep:
grep [...