coding of statistics software

8/3/2019 Coding of Statistics Software

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Statistics & Probability Qanita Zakir

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Jinnah University for Women


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TableofContentsAcknowledgements: .................................................................................................................... 3Abstract: ..................................................................................................................................... 3Requirement engineering: ........................................................................................................... 3

FeasibilityStudies:.................................................................................................................................... 3Elicitationandanalysis.............................................................................................................................. 3

ForUngroupedData:............................................................................................................................ 3ForGroupedData:................................................................................................................................ 3

Ungrouped Data program ........................................................................................................... 5Grouped Data program ............................................................................................................. 12

References ............................................................................................................................... 21


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Acknowledgements:The students of BS(IT) 2010 and our teacher Miss Saima assigned us to prepare a software that

performs statistical calculations and automate the generation of frequency distribution table. We

were given freedom of choice. This software mainly focuses grouped data but it can also performcalculations regarding ungrouped data

Thanks to Miss Saima who has taught us Statistics in this semester, Miss Sana Mehdi who has

taught us programming, Miss Narmeen Shawoo Bawani for her utmost effort in present

algorithms.

Thanks also to my parents and siblings who supported me when I was preparing this report.

Abstract:This software automates the statistical calculations and help user in giving quick and accurate

answers.

This software can calculate Arithmetic Mean, Geometric Mean, Harmonic Mean, Median and

Mode for Grouped and Ungrouped Data. Not only that, it can also calculate Variance, Standard

Deviation, Co-efficient of Variance, Mean Deviation about Mean and Median and Quartile

Deviations for Grouped Data

Requirement engineering:Feasibility Studies:

Ungrouped Data only works for integer raw data. Useful for every technical or non-technical Statistics student. Can be used even in outdated computers. No as such hardware requirements.

Elicitation and analysisFor Ungrouped Data:

1.2.3.4.5.

For Grouped Data:1.


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2.3.4.5.6.7.8.9.10.11.12.13.


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Ungrouped Data programinclude //header files#include#include#include#include#includevoid getdata(); //takes input from the uservoid sorting(); //arranging the values in ascending ordervoid printlist(); //prints the listvoid printtable(void); //prints the frequency distribution tableint location(int,int*, int);void calculation(void); //calculates Frequency, Cumulative frequency etcint no_of_classes(); //number of classes to be made with an intervalint maximum(int *);int minimum(int *);void classboundry(int); //calculating class boundriesvoid classinterval(int ); //calculating class intervalsvoid midpoint(int); //calculating mid pointsvoid frequency(int ); //calculating frequencyvoid relativefrequency(int ); //calculating relative frequencyvoid cumulativefrequency(int ); //calculating cumulative frequencyvoid FD(); //frequency distributionvoid arithmetic(); //calculates AMvoid harmonic(); //calculates HMvoid geometric(); //calculates GMvoid mode(); //calculates Modevoid median(); //calculates Medianstruct ClassBoundry{float lowest;float highest;};struct ClassInterval{float lowest;float highest;};int list[100]={(int)NULL}; //array of dataint max=(int)NULL; //no of raw figures availableint LB=(int)NULL; //declarations of Lowest boundryint h=(int)NULL;int n=(int)NULL;double AM, HM, GM, Mode, Median;struct ClassBoundry CB[100]={(float)NULL,(float)NULL};struct ClassInterval CI[100]={(int)NULL,(int)NULL};float Midpoint[100]={(float)NULL};float RF[100]={(float)NULL};int F[100]={(int)NULL};int CF[100]={(int)NULL};int main() //main program{clrscr(); //clear the screenint will=1, opchoice=0;


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char YN;while(will==1){clrscr();getdata(); //get data from the userclrscr();printlist(); //printing the list after sortinggetch();opchoice=0;while(opchoice!=7){clrscr(); //clearing the screencout


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r=1;while(r


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cout


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classinterval(a+1);}//--------------------------------------------------------------function-------------------------------------------------------------------------------void midpoint(int a){if(a


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int maximum(int list1[]){int maxn=list1[0];for(int loop=0;loopmaxn)maxn=list1[loop];return maxn;}//--------------------------------------------------------------function-------------------------------------------------------------------------------int minimum(int list1[]){int minn=list1[0];for(int loop=0;loop


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//--------------------------------------------------------------function-------------------------------------------------------------------------------void mode(){int maxn;int fre[100];int counter,loc;for(int a=0;a


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Grouped Data program#include //header files#include#include#include#include#includevoid get_grouped_data(); //This function takes input of frequency from theuservoid printtable(void); //prints the frequency distribution tableint location(float, float*, int); //find out the location of given frequencyvoid FD(); //frequency distributionvoid calculation(void); //calculates Frequency, Cumulative frequency etcint no_of_classes(); //number of classes to be made with an intervalfloat maximum(float*); //find out maximum no in a given listvoid classboundry(int); //calculating class boundriesvoid classinterval(int ); //calculating class intervalsvoid midpoint(int); //calculating mid pointsvoid frequency(int ); //calculating frequencyvoid relativefrequency(int ); //calculating relative frequencyvoid cumulativefrequency(int ); //calculating cumulative frequencyvoid arithmetic(); //calculates AMvoid harmonic(); //calculates HMvoid geometric(); //calculates GMvoid mode(); //calculates Modevoid median(); //calculates Medianvoid sdeviation(); //calculates Standard Deviationvoid variance(); //calculates Variancevoid qdeviation();void mdeviation();struct ClassBoundry{float lowest;float highest;};struct ClassInterval{float lowest;float highest;};float LI=(float)NULL, diff=(float)NULL; //declarations of Lowest Interval and difference//for classes 110-119,120-129 diff=120-119=1int n=(int)NULL; //class interval, number of classesfloat h=(float)NULL;float AM, HM, GM, Mode, Median, Var, SD, Q,MD,C;float sumfx,sumflogx,sumf_x, sum,sumfxMD, sumfxAM; //summation of fx, flogx, 1/fx, fstruct ClassBoundry CB[100]={(float)NULL,(float)NULL};struct ClassInterval CI[100]={(float)NULL,(float)NULL};float Midpoint[100]={(float)NULL};float RF[100]={(float)NULL};float F[100]={(float)NULL};float CF[100]={(float)NULL};float fx[100]={(float)NULL};float flogx[100]={(float)NULL};float f_x[100]={(float)NULL};float fxMD[100]={(float)NULL};float fxAM[100]={(float)NULL};


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int main() //main program{clrscr(); //clear the screenint will=1, opchoice=(int)NULL; //whileloop variable, choice of operation e.g 1 forAMchar YN; //stores y if user wants to enter main menuwhile(will==1){clrscr(); //clearing the screencout


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void get_grouped_data(){cout


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cout


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RF[a]=F[a];RF[a]=RF[a]/sum;}else return;relativefrequency(a+1);}//--------------------------------------------------------------function-------------------------------------------------------------------------------void cumulativefrequency(int a){if(a


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//--------------------------------------------------------------function-------------------------------------------------------------------------------void harmonic(){for(int a=0;a


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cout


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}cout


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cout


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}}//--------------------------------------------------------------function-------------------------------------------------------------------------------int location(float item, float* list1, int loop){int loc=(int)NULL;for(int a=0;a

coding of statistics software

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