I used more than two lines. I used more than two lines for the INTRODUCTION.
I re-wrote it this morning, with no functions.
Now it runs, but when you enter an EOF, it prints "Floating Point Exception", and no bars.
Here's the code I came up with.
(Warning, more than two lines. )
Code:
/*
* hist.c
*
* Exercise 1-13. Write a program to print a histogram of the lengths of words in its input.
* This version prints a horizontal histogram. It uses the character █ for the bars.
*
*/
#include <stdio.h>
#define MAX_WORD_LENGTH 30 // The maximum number of letters in a word.
#define NUMBER_WORDS 0 // To call the first member of the array.
int wordLength [MAX_WORD_LENGTH]; // array to hold the counts; zero is the number of words
main() {
int c; // counter
int character; // the character we're looking at
int p; // printing counter
int s; // printing symbol
for (c = 0; c <= MAX_WORD_LENGTH; c++) {
wordLength[c] = 0;
} // end initialization for loop
c = 0; // set count to zero
while ((character = getchar()) != EOF) { // get the character, stuff it into character, check for EOF
if ((character >= 'a' && character <= 'z') || // if it's a lower case letter or
character >= 'A' && character <= 'Z') { // an upper case letter
c++; //increment the counter
} // end if
else { // it's the end of the word, c holds the length of the word we just found.
wordLength[c]++;
wordLength[NUMBER_WORDS]++; // increment number of words
c = 0; // re-set the counter for the next word
} // end else
} // end while loop
/*******************
Printing- we've left the while loop because an EOF showed up
*******************/
for (c = 1; c <= MAX_WORD_LENGTH; c++) {
/* Note that this for loop starts with one, not zero.
This is because zero holds the number of words,
and each word had at least one letter. */
/**************************************
This is a test printing sequence I used to make sure the right
members of the array were incrementing. I left it here in case
final protective fire full panic testing was needed.
printf("C-");
printf("%d", c);
printf(" is ");
printf("%d \n", wordLength[c]);
**************************************/
p = ((wordLength[c] / wordLength[MAX_WORD_LENGTH]) / 2); // Each symbol is 2%
printf("%d", c);
printf(" letters: ");
for (s = 1; s <= p; s++) {
printf("█");
} // end printing for loop
printf("\n");
} // end for loop
} // end main
Hi,
I am a beginner at shell scripting, though I have several years of Oracle programming experience. Can anyone recommend a site where I can find some exercises on shell programming. Is there anywhere I can telnet as I dont have UNIX OS on my PC?
Thanks
Rohit (1 Reply)
I have just 3 things that I really need to know the solution, please allow me to show it.
any help would be nice
script that backup a file. The file name to backup should be provided as input parameter, the backup file should have the same file name with the extension ".bak". If the user... (1 Reply)
Hi, all: I have a question about "cleaning up" a huge file with regular expression(s) and sed:
The init file goes like this:
block1,blah-blah-blah-blah,numseries1,numseries2,numseries3,numseries4
block2,blah-blah-blah-blah-blah,numseries,numseries2,numseries3,numseries4
...... (3 Replies)
I did an assignment for sh scripting back in november, and I found it quite fun learning. I would like to retain this knowledge as I'm pretty sure it was my only scripting assignment, from now on in my programming course we won't be doing any scripting apart from the typical makefile scripts. The... (6 Replies)
Hi
I used this command:
mplayer http://host/axis-cgi/mjpg/video.cgi -user root -passwd root \
-cache 1024 -fps 25.0 -nosound -vc ffh264 \
-demuxer 3 -dumpstream -dumpfile output.avi It's ok but...
Video Playing is very fast! Why? Is it a synch problem?
What parameter I have to use for... (1 Reply)
Hi ,
I would like to do some exercises/scripts in order to develop my skills in shell scripts,
can someone pass me some links/suggestions where i can find this?
Thanks a lot :) (3 Replies)
Hello;
I have this rather tricky problem to solve --(to me, anyways) ..
I am processing the following one liner with tcpdump..
tcpdump -i T3501 -A ether host 00:1e:49:29:fc:c9 or ether host 00:1b:2b:86:ec:1b or ether host 00:21:1c:98:a4:08 and net 149.83.6.0/24 | grep --line-buffered -B... (5 Replies)
I want to insert "Text" in each file as a place where I mentioned below "Insert Text Here". These files are something like news of newspaper. Generally, newspaper headlines contain one or two lines.
I don't know how it can be identified whether Text is inserted after first line or second line.
... (10 Replies)
Hello, so I'm taking unix in one of my classes and I've been having fun, but I got stuck at this one question that I'm supposed to know how to answer but I can't wrap my head around it, I figured I'll post it here and see if someone can shed some light into what I'm doing wrong.
Here's the... (1 Reply)
Discussion started by: hiwolf25
1 Replies
LEARN ABOUT MOJAVE
counter
counter(n) Counters and Histograms counter(n)
__________________________________________________________________________________________________________________________________________________NAME
counter - Procedures for counters and histograms
SYNOPSIS
package require Tcl 8
package require counter ?2.0.4?
::counter::init tag args
::counter::count tag ?delta? ?instance?
::counter::start tag instance
::counter::stop tag instance
::counter::get tag args
::counter::exists tag
::counter::names
::counter::histHtmlDisplay tag args
::counter::reset tag args
_________________________________________________________________DESCRIPTION
The counter package provides a counter facility and can compute statistics and histograms over the collected data.
::counter::init tag args
This defines a counter with the name tag. The args determines the characteristics of the counter. The args are
-group name
Keep a grouped counter where the name of the histogram bucket is passed into ::counter::count.
-hist bucketsize
Accumulate the counter into histogram buckets of size bucketsize. For example, if the samples are millisecond time values
and bucketsize is 10, then each histogram bucket represents time values of 0 to 10 msec, 10 to 20 msec, 20 to 30 msec, and so
on.
-hist2x bucketsize
Accumulate the statistic into histogram buckets. The size of the first bucket is bucketsize, each other bucket holds values
2 times the size of the previous bucket. For example, if bucketsize is 10, then each histogram bucket represents time values
of 0 to 10 msec, 10 to 20 msec, 20 to 40 msec, 40 to 80 msec, and so on.
-hist10x bucketsize
Accumulate the statistic into histogram buckets. The size of the first bucket is bucketsize, each other bucket holds values
10 times the size of the previous bucket. For example, if bucketsize is 10, then each histogram bucket represents time val-
ues of 0 to 10 msec, 10 to 100 msec, 100 to 1000 msec, and so on.
-lastn N
Save the last N values of the counter to maintain a "running average" over the last N values.
-timehist secsPerMinute
Keep a time-based histogram. The counter is summed into a histogram bucket based on the current time. There are 60 per-
minute buckets that have a size determined by secsPerMinute, which is normally 60, but for testing purposes can be less.
Every "hour" (i.e., 60 "minutes") the contents of the per-minute buckets are summed into the next hourly bucket. Every 24
"hours" the contents of the per-hour buckets are summed into the next daily bucket. The counter package keeps all time-based
histograms in sync, so the first secsPerMinute value seen by the package is used for all subsequent time-based histograms.
::counter::count tag ?delta? ?instance?
Increment the counter identified by tag. The default increment is 1, although you can increment by any value, integer or real, by
specifying delta. You must declare each counter with ::counter::init to define the characteristics of counter before you start to
use it. If the counter type is -group, then the counter identified by instance is incremented.
::counter::start tag instance
Record the starting time of an interval. The tag is the name of the counter defined as a -hist value-based histogram. The instance
is used to distinguish this interval from any other intervals that might be overlapping this one.
::counter::stop tag instance
Record the ending time of an interval. The delta time since the corresponding ::counter::start call for instance is recorded in the
histogram identified by tag.
::counter::get tag args
Return statistics about a counter identified by tag. The args determine what value to return:
-total Return the total value of the counter. This is the default if args is not specified.
-totalVar
Return the name of the total variable. Useful for specifying with -textvariable in a Tk widget.
-N Return the number of samples accumulated into the counter.
-avg Return the average of samples accumulated into the counter.
-avgn Return the average over the last N samples taken. The N value is set in the ::counter::init call.
-hist bucket
If bucket is specified, then the value in that bucket of the histogram is returned. Otherwise the complete histogram is
returned in array get format sorted by bucket.
-histVar
Return the name of the histogram array variable.
-histHour
Return the complete hourly histogram in array get format sorted by bucket.
-histHourVar
Return the name of the hourly histogram array variable.
-histDay
Return the complete daily histogram in array get format sorted by bucket.
-histDayVar
Return the name of the daily histogram array variable.
-resetDate
Return the clock seconds value recorded when the counter was last reset.
-all Return an array get of the array used to store the counter. This includes the total, the number of samples (N), and any
type-specific information. This does not include the histogram array.
::counter::exists tag
Returns 1 if the counter is defined.
::counter::names
Returns a list of all counters defined.
::counter::histHtmlDisplay tag args
Generate HTML to display a histogram for a counter. The args control the format of the display. They are:
-title string
Label to display above bar chart
-unit unit
Specify minutes, hours, or days for the time-base histograms. For value-based histograms, the unit is used in the title.
-images url
URL of /images directory.
-gif filename
Image for normal histogram bars. The filename is relative to the -images directory.
-ongif filename
Image for the active histogram bar. The filename is relative to the -images directory.
-max N Maximum number of value-based buckets to display.
-height N
Pixel height of the highest bar.
-width N
Pixel width of each bar.
-skip N
Buckets to skip when labeling value-based histograms.
-format string
Format used to display labels of buckets.
-text boolean
If 1, a text version of the histogram is dumped, otherwise a graphical one is generated.
::counter::reset tag args
Resets the counter with the name tag to an initial state. The args determine the new characteristics of the counter. They have the
same meaning as described for ::counter::init.
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category counter
of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for
either package and/or documentation.
KEYWORDS
counting, histogram, statistics, tallying
CATEGORY
Data structures
counter 2.0.4 counter(n)
01-25-2010
)